divinylbenzene storage,handling and safety
TRANSCRIPT
CHAPTER 9 STORAGE, HANDLING AND SAFETY
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9.1 Handling and Storage
The prevention of polymer development and runaway polymerization is generally the greatest
concern in the storage of DVB.
Prevention of color formation is also important, but this is normally caused by contamination
such as rust and water.
The most important factors in maintaining a long shelf life for DVB are low temperatures,
adequate inhibitor levels and oxygen content, and the use of proper construction materials for
storage and handling equipment.
Good, basic housekeeping practices are also important. Listed below are general
guidelines.
1. Conduct regular equipment inspections.
2. Repair leaks immediately.
3. Maintain good ventilation.
4. Install proper facilities to remove spills quickly.
5. Test pressure equipment periodically.
6. Eliminate all possible ignition sources.
9.2 Inhibitor handling
TBC (Tertiary butyl Catechol) is highly recommended as a storage inhibitor for DVB. It
imparts no colour, but does require a minimum of 15 ppm oxygen in the monomer to make its
inhibitory capability effective. DVB is shipped with a TBC level of 900–1,100 ppm. This
level of inhibitor is normally effective in preventing incipient polymerization for 30 days at a
maximum temperature of 80°F, assuming the critical O2 saturation of 28–30 ppm is
maintained.
To prevent runaway polymerization of stored monomer, the inhibitor level, the temperature
of the storage facility, and the oxygen content of the monomer should be carefully monitored.
Oxygen content is the critical factor in most situations.
The minimum recommended concentration for TBC in divinylbenzene is between 400–600
ppm.
TBC action:-
If sufficient oxygen is present, TBC prevents polymerization by reacting with oxidation
products (monomer peroxy-free radicals) in the monomer. However, in the absence of
oxygen, polymerization will proceed at essentially the same rate as if no inhibitor were
present.
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Special cases where inhibitor removal is desired:-
In special cases, you may want to remove the inhibitor. This can be accomplished by running
the DVB through a bed of alumina.
Factors affecting inhibitor level:-
Other factors that affect the depletion of TBC are heat, caustic, and exposure to alumina or
ion exchange resin beads.
In hot climates or where temperatures greater than 26.66°C are normally encountered, the
monomer bulk storage installation should be refrigerated.
In addition, drums of monomer should not be kept in the sun. As soon as monomer is
received, drums should be placed in a cool, shaded area. In very hot weather, drums can be
temporarily cooled by water spray. It is advisable to keep monomer inventories to a minimum
during hot weather, and to use drums in the order they are received so that monomer is not
stored any longer than necessary.
The polymer deposited under these conditions will be discoloured, cross-linked, and high in
peroxides, aldehydes, and other oxidation products. Deposits of contaminated polymer will
eventually produce serious color and polymer problems in monomer stored under air in
unlined steel tanks.
Therefore, do not allow mechanical structures in the top part of the storage tank as they will
collect these impurities. Polymer deposits in tanks also cause difficult removal and cleaning
problems. If stalactites are allowed to grow, their weight may even damage the roof or roof-
supporting structure of large vertical storage tanks.
Addition of TBC to stored monomer:-
Add additional inhibitor when the level of TBC falls below the minimum specification level.
The TBC content of DVB in storage should never be allowed to be depleted below the 400–
600 ppm level.
Oxygen requirement of DVB:-
The storage tank (or drum) should always be Oxygen requirements of TBC Air presents a
very complex problem in the storage of DVB. TBC is not an effective inhibitor for DVB in
the complete absence of dissolved oxygen.
However, excessive amounts of oxygen in the storage tank may lead to other serious storage
and handling problems.
Monomer vapours above the liquid level in the tank are uninhibited. These uninhibited
vapours and condensed monomer droplets are readily oxidized by oxygen from the air. These
droplets, containing oxidation products, will polymerize quite rapidly and will adhere to the
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rusted, porous surfaces of unlined steel tanks. They appear in the form of coatings and
stalactites, or “polymer icicles,” on the roof and sidewalls above the liquid monomer.
However, the complete elimination of oxygen from the vapour area will lead to depletion of
dissolved oxygen from the liquid monomer. If this dissolved oxygen is not replaced and is
allowed to drop below 15 ppm, the TBC inhibitor will become ineffective and rapid
polymerization runaway polymerization may take place after inhibitor is added.
This action ensures a uniform mixture of TBC and monomer. The tank should also be aerated
as necessary.
Optimum Inhibitor Requirements:-
COMPONENT RANGE
TBC (Ter-butyl-cathecol),inhibitor 400-600 ppm
Dissolved Oxygen 15 ppm
9.3 Information on storage facility
Decisions concerning distances to power lines, buildings, other tanks, piping, and property
lines, as well specific bulk storage layout must conform to insurance underwriters’ codes as
well as as diking, and other protection requirements, are usually dictated by these codes and
regulations. Figure 11
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Storage tank and its components
DVB can be stored for relatively long periods if simple, but carefully prescribed, storage
conditions are met. In addition to the usual precautions taken with combustible liquids against
fire and explosion hazards, you must prevent conditions conducive to the formation of
polymer and oxidation products. This can be accomplished by designing and constructing a
bulk storage system that prevents excessive temperatures and contamination of the monomer
in frequently used lines and other equipment.
Black-iron (wrought & tempered iron) storage tanks are generally the most economical for
DVB, and vertical storage tanks are often used for large-volume storage.
Horizontal tanks are also satisfactory for bulk storage, but these are generally used for
smaller installations.
A self-supporting, dome-type roof is recommended for vertical storage tanks. This type of
construction simplifies the installation of linings, and also permits rapid drainage of Baked
phenolic, modified epoxy, and catalysed epoxy linings are all satisfactory. These coatings are
nonconductive, however, and it is recommended that the bottom and lower six to eight inches
of vertical storage tanks be coated with inorganic zinc silicate linings to provide electrical
grounding. Rubber-based linings should never be used.
Installation design should allow for complete drainage of the storage system, and
recirculation of the monomer through the system. This is especially important when
equipment is in intermittent service or where monomer is stored for extended periods.
You can fill the storage tank from the bottom or top with a line extending to the bottom
(DVB should not be allowed to fall through free air space in the tank due to the possibility of
static build-up). The inlet line should always be at the opposite end of the tank from the outlet
line. This will facilitate thorough mixing in the storage tank when new monomer or inhibitor
is added.Thorough mixing is further assisted by directing the flow of the incoming monomer
up into the monomer body.
You should also include separate drain lines properly valved and closed to allow for complete
drainage when necessary.Drainage from horizontal tanks can be assisted by sloping the tanks
toward the drains. Floors of large vertical tanks can be tilted toward a small built-in sump
with a bottom drain.
Pumps
Pumps made of most materials are suitable for DVB, except those made of copper or plastic.
Centrifugal pumps with enclosed impellers and mechanical seals are the most widely used,
but displacement pumps are also satisfactory.
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Make sure that pumps are not allowed to run when valves are closed. The heat evolved by
pumping against a “deadhead” may be enough to polymerize monomer in the pump and
cause contamination.
Lines and valves
Thermal expansion in blocked DVB lines exposed to the sun and without relief protection can
cause high pressures which can result in failures of gaskets, pump seals, and pump housings.
Lines should also be laid out to allow for complete drainage and should be blown out with air
after material transfers.
The lines may be constructed of iron or galvanized pipe. Do not use copper or bronze.All
valves below liquid level should be steel or ductile iron to prevent breakage from freezing or
mechanical stress. Lubricated plugcocks and non-lubricated ball-type valves are satisfactory.
Plugcocks and ball valves lined with Viton fluoroelastomer give excellent service with
stainless steel balls and are highly recommended for DVB service.
Transfer lines are typically joined by welded joints or flanges, but threaded joints are also
satisfactory. Pipe dope can be dissolved by monomer, causing discoloration and
contamination. You can avoid this by wrapping the pipe threads with plastic tape coated with
Teflon resin.
Gaskets
Manhole covers for cleaning or sampling should have gaskets made of Viton fluoroelastomer
or Teflon resin. In addition, its recommended that all gaskets used in handling DVB be made
of these materials.
Listed below are pump seals and gaskets which have proven satisfactory in DVB service.
Pump Seals:-
John Crane Type 9T
•Teflon resin V wedge with carbon face seal
• Runs against carbon seat
• Stainless steel hardware
John Crane Type 8IT
• Viton fluoroelastomer O-ring with carbon face seal
• Runs against tungsten carbide seat
• Stainless steel hardware
John Crane Type 20R
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• Glass-filled Teflon resin with carbon face seal
• Runs against tungsten carbide seat
• Stainless steel hardware
Breathers
Air-blanketed, non-pressurized DVB storage tanks should be fitted with approved vents. You
should also install additional venting facilities for both pressure and vacuum relief to protect
the tank in case there is a sudden pressure buildup, or open vents are plugged.
Frangible safeties or vacuum-pressure safety relief valves are recommended for this purpose
on smaller units. On larger storage facilities, both manhole emergency relief venting for
pressure and a vacuum-pressure relief valve are highly recommended to assure protection
against tank collapse. In addition, inspect all vents at least every six months for polymer
plugging.
Level indicators
Float-type, dial-reading gauges are acceptable, but for remote readings, flange-mounted
differential pressure transmitters are recommended. All storage tanks should contain either a
local temperature indicator, or a temperature sensor for remote reading.
Flexible transfer hoses
Composition hoses, which are static-conductive, and flexible metal hoses are widely used.
Flexible metal hoses (woven-metal type) are the most satisfactory, but require more care to
keep them properly cleaned. They also require added attention to prevent damage or breakage
during use.
Hoses made of Viton fluoroelastomer give the best service and are the most widely used of
the composition hoses.
Never allow monomer to stand in any of the composition hoses. Monomer can attack the
interior of the hose, shortening hose life and causing monomer contamination. Completely
remove all residual monomer and thoroughly clean all transfer lines in intermittent service to
prevent this source of potential contamination.
Preventive maintenance for flexible transfer lines is recommended. These lines should be
carefully inspected to determine their structural condition and cleanliness before being used
in DVB service.
Of course, all transfer lines and hose connections should be adequately grounded to discharge
static electricity safely.
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Additional comments on storage
Refrigeration:
Large aboveground tanks with a low throughput or turnover rate should be insulated and
cooled by external refrigeration.
Reflective Painting:
Painting exterior storage tanks with either white or some other light-reflecting paint also
minimizes the absorption of sunlight, thereby reducing heat gain.
Shading:
Slatted shade in an open area where ventilation is assured has proved satisfactory for the
protection of small aboveground tanks, pumps, filters, and other handling equipment.
Containers:
The type of container in which DVB is shipped and stored is very important to monomer
purity and stability. Lined and unlined black iron, aluminum, and stainless steel containers
are all satisfactory, and typically used to store and transport DVB. Avoid copper and copper
bearing alloys such as brass and Monel alloy.
The oxidation products of copper are picked up by DVB and by the organic oxidation
products present in the monomer. This action yields soluble copper salts which can interfere
with the polymerization. The presence of copper salts can be detected by the greenish-blue
color they sometimes impart to the stored monomer.
Some common reagents such as sulphuric acid, phosphoric acid, hydrochloric acid, iron
chloride, and other metallic halides catalyse a violent polymerization reaction of DVB.
Before refilling used containers, make sure they are inspected and cleaned to remove reagent
residues, or old monomer-containing polymer and oxidation products that could cause
contamination or reaction.
Drums of monomer should not be kept in the sun. As soon as monomer is received, it should
be placed in a cool, shaded area. In very hot weather, drums can be temporarily cooled with
water spray. It is advisable to keep monomer inventories to a minimum during hot weather,
and to use drums in the order they are received so that monomer is not stored any longer than
necessary.Temperature in the monomer storage area should not be allowed to exceed
80°F for DVB.
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Recommended shelf life
The table below gives the approximate shelf life of DVB under maximum ambient storage
temperatures, assuming TBC and dissolved oxygen concentrations are maintained above the
minimum levels. Refrigerated storage will significantly extend the shelf life of DVB.
Table 8
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9.3 Hazard potential Table 9
Fires
Fires involving DVB can be safely extinguished with foam, dry chemical, or carbon dioxide
extinguishers.
Water is not an effective extinguishing agent for use on thesewater-insoluble monomers.
When burning, DVB can give off toxic by-products such as carbon monoxide gas.
Wear approved respiratory equipment to avoid breathing any fumes or smoke.
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Spills
Spilled monomer can be removed safely for disposal by covering it with a suitable adsorbing
agent such as sand or ground corncobs. However, some adsorbing agents such as untreated
clays and micas may cause an exothermic reaction which might ignite the monomer. To be
absolutely safe, adsorbing agents should be tested for their effect on polymerization of the
monomer before they are used on spills. If the spill is on a hard surface, the area should be
scrubbed with soap and water after the bulk of the monomer has been removed.If the spill is
contained by a permeable barrier (such as with an earthen dam), you should
1) limit the area of exposure
2) Get water under the spill (DVB floats on water so this will prevent the monomer from
soaking into the ground and allow it to be skimmed and pumped off later)
3) put fire-fighting foam over the spill to control odor and prevent fire.
Use of a non-permeable barrier, such as a concrete dike, is recommended. If the spill is
contained in such a non-permeable barrier,the use of water is not necessary and may be
detrimental.
Static electricity
DVB, with its high-volume resistivity, can pick up and hold a static charge during transfer
from a tank truck to a storage tank. Always make sure that the storage tank and tank truck are
well-grounded.
Operators wearing rubber-soled shoes, especially on certain composition floors made of good
insulating materials, can pick up considerable static electricity, and should exercise
appropriate caution. Observing the above precautions will help reduce problems with static
electricity.
9.5 Toxicity, First Aid,and Industrial Hygiene Measures for DVB
Extensive experience has shown that divinylbenzene can be handled safely if its toxicological
properties are clearly understood and proper precautions are practiced.
Inhalation
Inhalation of DVB can cause respiratory irritation and, at higher concentrations, anesthetic
and narcotic effects. The ACGIH (American Conference of Governmental and Industrial
Hygienists) Threshold Limit Value/Time Weighted average concentration (TLV/TWA) and
the OSHA permissible exposure limit (PEL) for DVB are 10 ppm.
Vapor concentrations should be maintained below these guidelines. In the absence of proper
environmental control, wear an approved, organic vapor-type respirator. In emergenciesand
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other conditions where the guidelines are greatly exceeded, wear a positive-pressure, self-
contained breathing apparatus.
Applications which require heating of DVB increase the likelihood of attaining hazardous
vapor conditions. Exercise additional caution when working with DVB at elevated
temperatures.
If a person is accidentally overcome by monomer vapors, or experiences any ill effects
caused by breathing the vapors of these materials, move him/her immediately to fresh air, and
keep him/ her quiet and warm. Obtain medical attention immediately. If breathing stops,
administer artificial respiration.
Skin contact
Brief skin contact with DVB (five minutes or less) usually causes no irritation. However,
prolonged contact may cause irritation and possibly some swelling of the skin or even a burn,
depending upon the severity of the exposure. Blistering of the skin can occur when clothing
or shoes wet with DVB are worn, and skin rashes may result from repeated exposure.
Ingestion
DVB is low in acute oral toxicity. Although DVB should never be ingested, if it is
accidentally swallowed, DO NOT INDUCE VOMITING,because there is the danger that
upcoming stomach fluids may be aspirated into the lungs,causing systemic effects. Medical
attention should be obtained immediately.
Eye contact
DVB is irritating to the eyes. Contact will be quite painful and can cause irritation of the
conjunctival membranes that shield the eyes.Wear safety glasses as minimum eye protection
for divinylbenzene. If the eyes are contaminated, flush immediately for 15 minutes with
plenty of water, and obtain medical attention as quickly as possible.
NOTE TO PHYSICIAN: Because rapid absorption may occur through the lungs if aspirated,
causing systemic effects, the decision of whether or not to induce vomiting should be made
by an attending physician. If lavage is performed, endotracheal and/or esophageal control is
suggested. Danger of lung aspiration must be weighed against toxicity when considering
emptying the stomach. If skin burns are present, treat as any thermal burn after
decontamination.
9.6 MSDS
MATERIAL SAFETY DATA SHEET
SECTION 1 PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: Divinylbenzene (55%)
CHEMICAL SYNONYMS: Nil
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PRODUCT CODE: DVB (55%) CHEMICAL FAMILY: Aromatic Hydrocarbon
PRODUCT USE: Specialty Monomer
COMPANY NAME: Deltech Corporation
11911 Scenic Highway
Baton Rouge, LA 70807
24 Hour EMERGENCY PHONE (01) 225 772-0150 CHEMTREC: 1-800 424-9300
SECTION 2 COMPOSITION/INFORMATION ON INGREDIENTS
Component (CAS ) % By Weight Exposure Limits
Divinylbenzene (1321-74-0) 52-55 OSHA PEL - 10 ppm TWA
Ethylvinylbenzene (28106-30-1) 40-46
Naphthalene (91-20-3) 1 OSHA PEL - 10 ppm TWA
Diethylbenzene (25340-17-4) 0.5-1.5
p-tert-butyl cathechol (98-29-3) 0.1-0.15
SECTION 3 HAZARD IDENTIFICATION
EMERGENCY OVERVIEW
DVB (55%) mixture is clear, slightly amber liquid with strong aromatic odor.
Divinylbenzene is a moderate eye, respiratory system and skin irritant. Napthalene is a
mild skin and eye irritant. Mixture may polymerize and autoaccelerate with explosive
energy release if heated or mixed with a catalyst,peroxide, metal halide or oxidizing
agent. Combustible. Hot vapors are extremely flammable and areheavier than air.
POTENTIAL HEALTH EFFECTS:
EYE: May cause irritation and pain. Corneal ulcerations and injury are unlikely.
SKIN: Prolonged exposure may cause irritation, drying, flaking and redness on skin. A single
prolonged exposure is not likely to be absorbed through the skin in harmful amounts.
INGESTION: Substance may be harmful if swallowed, although it is unlikely to have
serious health effects in minute quantities. May cause central nervous system depression
(dizziness, drowsiness), nausea and loss of consciousness. Ingestion of napthalene may cause
nausea, headache, blood in urine, sweating, fever, anaemia, liver damage, vomiting,
convulsions and coma.
INHALATION: Avoid breathing vapors or mists, may be harmful if inhaled. Because of low
vapor pressure itis unlikely that DVB (55%) will be inhaled in harmful amounts. If heated or
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misted , concentrations may be attained that may be hazardous from a single exposure.
Irritation to the upper respiratory tract and lungs,central nervous system depression
(dizziness, drowsiness), nausea and loss of consciousness are common consequences of
inhalation overexposure.
CHRONIC (CANCER) INFORMATION: Contains napthalene which has caused cancer in
some laboratory animals. Data available on other components of mixture are insufficient to
classify as a probable human carcinogen.
REPRODUCTION INFORMATION: Napthalene has shown experimental reproductive
effects.
SECTION 4 FIRST AID MEASURES
EYES: Flush eyes thoroughly with water for 15 minutes. Consult physician if irritation
persists.
SKIN: Wash affected area with soap and water. Remove contaminated clothing and shoes.
Do not reuse contaminated clothing without laundering. Consult physician if irritation
persists.
INGESTION: Do not induce vomiting; consult physician immediately.
INHALATION: Remove victim to fresh air. Get medical assistance immediately. May cause
chemical pneumonia if aspirated. Administer oxygen if there is difficulty breathing.
Administer artificial respiration if not breathing.
NOTE TO PHYSICIANS
Because rapid absorption may occur through the lungs if aspirated, the decision of whether to
induce vomiting should be made by a physician. If lavage is performed, suggest endotracheal
and/or esophageal control. Danger from lung aspiration must be weighed against toxicity
when considering emptying the stomach. Treat burns as thermal burns. Treatment based upon
judgement of the physician in response to the reactions of the patient.
SECTION 5 FIRE FIGHTING MEASURES
FLAMMABLE PROPERTIES: Flash Point: 170oF Method: Open Cup
Hot vapors are heavier than air and very flammable. Vapors may travel considerable
distances to ignition source and cause flash fires or explosions.
FLAMMABILITY LIMITS: Lower Flammablity Limit: 1.1%
Upper Flammablity Limit: 6.2%
AUTOIGNITION TEMPERATURE: 878oF (470
oC)
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HAZARDOUS COMBUSTION PRODUCTS: Carbon dioxide, carbon monoxide, and
other toxic fumes of incomplete combustion. During a fire, smoke may contain mists of the
original material.
EXTINGUISHING MEDIA: Carbon dioxide, foam or dry chemical. Water fog or fine
spray; water may be ineffective. General purpose synthetic foams or protein foams are
preferred.
FIRE FIGHTING INSTRUCTIONS: Use water spray to cool fire exposed containers,
protect personnel, and
disperse vapors and spills. Dike and collect water due to potential environmental damage and
spread of fire
with product carried across water surface. Use self-contained breathing apparatus and fight
fire from safe distance due to explosion potential.
UNUSUAL HAZARDS ASSOCIATED WITH FIRE: Closed containers of DVB (55%)
may build up explosive pressures when exposed to the heat of fires. Closed containers of
DVB (55%) exposed to the heat of fires may begin to polymerize in an exothermic manner
leading to autoacceleration and rapid pressure increase and explosion potential.
SECTION 6 ACCIDENTAL RELEASE MEASURES
SMALL SPILL: Absorb spill with an inert material (dry sand) and place in chemical waste
container for disposal. Do not use reactive absorbents.
LARGE SPILL(on land): Remove all sparking devices and ignition sources. Contain spilled
liquid with dikes of earth. Pump water into diked area and collect product from the top of
water. Dispose of hydrocarbon laden water accordingly. Use oil spill collection pads and
booms to contain runoff and seepage from diked areas.
SPILLS INTO WATERWAYS: Contain spill with oil booms and recover product by
vacuum truck or oil collection pads.
REPORTABLE QUANTITY: Not a DOT listed Hazardous Substance. Various state and
local regulations may apply.
SECTION 7 HANDLING AND STORAGE
HANDLING: Avoid contact with eyes. Avoid prolonged or repeated contact with skin. Keep
containers tightly closed and use in well ventilated areas. Avoid prolonged or repeated
breathing of vapors. Use grounding and bonding connections when transferring material to
prevent static discharge, fire or explosion. Use spark proof tools and explosion proof
equipment. Even empty containers may contain vapors. Do not cut, drill,grind or weld on
containers, even if emptied of product.
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STORAGE: Store in a cool area or refrigerated tank away from high temperatures, hot pipes
or direct sunlight. Maintain DVB temperature in storage below 90°F (32°C). Maintain
inhibitor concentration above 1000 ppm. If storage of more than 6 weeks is required aerate
once per week with dry air to maintain dissolved oxygen above 10 ppm
SECTION 8 EXPOSURE CONTROLS / PERSONAL PROTECTION
ENGINEERING CONTROLS: Use local ventilation to maintain airborne concentrations
below exposure limits. Use only with adequate ventilation.
RESPIRATORY PROTECTION: For operations where inhalation exposure may occur, a
NIOSH approved air purifying respirator with organic vapor cartridge(s) or canister may be
permissible. Protection provided by air purifying respirators is limited. Use a positive-
pressure air-supplied respirator if there is any potential for uncontrolled release or any other
circumstances where air-purifying respirators may not provide adequate protection.
SKIN PROTECTION: When contact may occur, use protective clothing and gloves
impervious to hydrocarbon materials. Use of specific items such as face shield, apron, gloves,
boots or body suit is dependent upon operation. Wash hands thoroughly before eating,
drinking or smoking.
EYE PROTECTION: Use safety glasses when handling small amounts. When splashing
may occur use chemical splash goggles and face shield. If vapors cause eye discomfort use a
full-face, supplied-air respirator.
SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES
BOILING POINT 383°F (195°C)
MELTING POINT: -126°F (-88°C)
VAPOR PRESSURE: 0.24 mmHG @68°F (20°C)
VAPOR DENSITY: 4.5 (air=1)
SOLUBILITY IN WATER: 0.0052%@25°C)
SPECIFIC GRAVITY: 0.915 @ 77°F (25°C)
PARTITION COEFFICIENT:
log Kow = 3.59 (estimated)
HENRY'S CONSTANT: 2.253x10-3 atm-m3/mol at 25°C (estimated)
INDEX OF REFRACTION: 1.5772 @ 68°F (20°C)
pH: N/A
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ODOR: Strong Aromatic Hydrocarbon
APPEARANCE: Amber Clear Liquid
SECTION 10 STABILITY AND REACTIVITY
CHEMICAL STABILITY: Stable under recommended storage conditions. Inhibited with
tertiary-butylcatechol (TBC). Maintain temperature below 90°F (32°C). Maintain oxygen
content above 10 ppm.
CONDITIONS TO AVOID: Do not blanket with an inert gas to avoid depleting dissolved
oxygen concentration. Avoid excessive heat and keep away from open flames or ignition
sources. Avoid deadheaded pumps while transferring.
INCOMPATABILITY: Do not use copper or brass tubing or connections. Do not mix with
oxidizing agents,acids, metal halides or peroxides.
HAZARDOUS DECOMPOSITON PRODUCTS : Dependent upon temperature and the
presence of other materials.
HAZARDOUS POLYMERIZATION: Polymerization may occur if material is exposed to
excessive heat or catalyzed by mixture with incompatible materials. Hazardous
polymerization may occur in the absence of air or if inhibitor levels are not maintained.
Polymerization is exothermic and may result in autoacceleration,rapid temperature rise,
increased pressure, vigorous venting of container, and fire or explosion if not arrested.
SECTION 11 TOXICOLOGICAL INFORMATION
EYE EFFECTS: Mild to moderate eye irritant. Toxicity resembles that of styrene.
SKIN EFFECTS: The LD50 for skin absorption in rabbits is 8000 mg/kg
ACUTE ORAL EFFECTS: Oral LD50 in rats is 2155-4100 mg/kg.
ACUTE INHALATION EFFECTS: Mild to moderate respiratory tract irritant. Toxicity
resembles that of styrene.
SECTION 12 ECOLOGICAL INFORMATION
ECOTOXICITY: High acute toxicity to aquatic organisms (LC50 - 0.1-1.0 mg/L for most
sensitive species).
Acute immobilization EC50 for water flea (Daphnia magna) is 0.69 mg/L.
CHEMICAL FATE INFORMATION: Biodegradation under aerobic conditions is low
(BOD is between 2.5 and 10%), however the material is expected to biodegrade in a
wastewater treatment plant.
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Photodegradation - With ozone, estimated half-life of 6.5 hours. Photochemically produced
hydroxyl radicals, half-life of 7 hours. Water Stability - Half-life in river model = 4 hours;
pond model = 14 days.
Fugacity - log Kow = 3.59 (estimated)
SECTION 13 DISPOSAL CONSIDERATIONS
DISPOSAL: Do not dump into sewers, on the ground, into any body of water or into
municipal or industrial waste receptacles. Disposal must be in accordance with all local, state
and Federal/Provincial laws and regulations governing the disposal of chemical wastes. The
preferred method of disposal for unusable or contaminated product is sending to a licensed,
permitted incinerator or thermal destruction device. The heat of combustion of the material in
the product form is approximately 18,000 BTUs/lb.
RECYCLING OPPORTUNITIES: Downgraded or unused product could possibly be
returned to Deltech for recycling if certain criteria are met. Contact a Deltech sales
representative for more information.
SECTION 13 TRANSPORT INFORMATION
PROPER SHIPPING NAME Combustible Liquid, N.O.S.
(Contains 55% Divinylbenzene and Ethylvinylbenzene, Stabilized)
SECTION 15 REGULATORY INFORMATION
US FEDERAL / STATE REGULATIONS:
TSCA: All components of this product are listed on the TSCA inventory or do not require
listing on the TSCA inventory
OSHA: Hazardous by definition of Hazard Communication Standard (29CFR 1910.1200)
CERCLA: SARA TITLE III SECTIONS 311 AND 312 HAZARD CATEGORY:
CERCLA: SARA TITLE III SECTION 313: This product contains napthalene near or
above the deminimus quantity subject to TRI reporting.
This notice must not be detached from the MSDS and fulfills the requirements for supplier
notification.
CLEAN AIR ACT AMENDMENTS: TITLE III: This product is not a listed hazardous air
pollutant.
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VOLATILE ORGANIC COMPOUNDS (VOC's): This product is considered a VOC and
is expected to be photochemically active.
EINCS: This product is on the European Inventory of Existing Commercial Chemical
Substances. EINECS
Inventory Number: 2153255
SECTION 16 OTHER INFORMATION
MSDS STATUS:
All sections revised to bring MSDS in compliance with the ANSI Z400.1-1998 Standard
(Revised 6/02).
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA) SYSTEM RATING:
The NFPA system rating for this product is: Fire - 2 Health - 2 Reactivity - 2