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CHEM 113 - General

Chemistry Lab I

Instructors

Prof. Dr. Hayal BÜLBÜL SÖNMEZ

Assoc. Prof. İbrahim Fazıl Şengül

Dr. Hüsniye ARDIÇ ALİDAĞI

Dr. Seda ÇETİNDERE

Dr. Ahmet ŞENOCAK

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LAB SAFETY

At the beginning of the semester, the students will be informed about the safety rules in thelaboratory.

After that, the students will take a written examination about the safety rules of laboratory. The exam will have a 10% contribution to the semester grade.

CHEM 113 - General Chemistry Lab I

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Safety Training

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is a discipline that..

• ensures safety and health of lab users in the lab

• focuses on eliminating hazards/risks arising in the lab

• provides training, information and assistance to lab users in the lab

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Staying safe means that you…

• Use correct protective clothing and equipment

• Read labels on containers of chemicals

• Read Material Safety Data Sheets (MSDS)/ Safety Data Sheets (SDS)

• Handle chemicals with care

• Remember emergency procedures

Safety Training

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Safety Training

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Safe working inside the laboratory protects..

•You

•Your friends

•Your work

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Lab coats

• Students are required to wear lab coats when there is the potential for direct contactwith any hazardous materials.

• Should not be worn outside the laboratory (lunch, meetings, etc.).

Skin and Body Protection

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Gloves

are designed to protect the user’s hands against corrosive, toxic or otherwise harmfulchemicals.

Gloves should be chosen on the basis of the materials being used, the potential hazardsinvolved, and the suitability of the glove to the operation being performed.

TIPS:

▪ Use the right glove for the job.

▪ Inspect gloves before each use.

▪ Replace gloves periodically.

▪ Always wash hands after removing gloves.

Skin and Body Protection

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Skin and Body Protection

Foot protection

• Sandals or shoes that expose the toes or other areas of the feet are not allowedin the laboratory.

• Shoes, boots or sneakers that cover the entire area of your feet are acceptable.

✓Shoes

always worn in

lab, closed toe

and closed heel

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All lab workers, visitors, and students must wear eye protection at all times while inthe lab when there is the potential of splash or flying object.

❖ Contact lenses are not allowed in the lab.

Acid and organic chemical vapors could get in between eye and lenses. Thus, lensescan be glued on the eye in the case of an accident and can be difficult to remove.

Eye and Face Protection✓Safety glasses – flying particles, chemical splashes, dust

✓Splash goggles – corrosive liquids, solvents, powders

✓Face Shields – protect the entire face against exposure to chemical hazards.

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Masks (used if necessary)

Gas Masks are used to protect its user from toxic airborne particles or gases.

Respirator mask- disposable, respirators whose only function is to protect against airborne particles.

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Fume Hood

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1. Keep sash as low as possible

2. Not use for storage

3. Never allow your head to enter the hood

4. Do not modify – placing shelves or fixtures

5. Closed when unattended or during tests

Wear eye protection

Check air function display

Keep equipment at least 15 cm from face

A laboratory fume hood is a type of localventilation system that is designed to provide personnel protection against toxic fumes, vapors and dusts.

Usage Guidelines

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General Lab Safety Rules

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➢ Always wear required PPE in the lab

➢ No eating, drinking or smoking

➢ Never work alone in the lab

➢ Always keep the doors closed

➢ Do not block exits and access to emergency equipment

➢ Always work in a well-ventilated area

➢ Dispose of all wastes properly

➢ Report any accident/near miss to laboratory safety specialist

➢ Do not run in the lab. Do not make any jokes.

➢ Do not inhale vapors or fumes directly

➢ When smelling a substance use a gentle fanning motion to waft the vapor

toward your face.

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General Lab Safety Rules

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➢ Read the labels carefully on the bottle before you use the chemicals.

➢ Do not orientate the test tube toward yourself or your friend.

➢ Keep your hair tied back if you have long hair.

➢ Do not use Bunsen burners next to flammable chemicals (i.e. ethers)

➢ Always keep your work area clean and tidy.

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General Lab Safety Rules

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➢ Read the experimental procedure before coming to the lab.

➢ Inform your instructor immediately in the case of any accident.

➢ Acids should be added to the water slowly and by stirring in order to mix water andacid.

➢ Do not smell or taste the chemicals.

➢ Do not pull solutions by mouth when

using pipet.

➢ Chemicals (solid, liquid or solution)

must not be dumped into the sink.

Use the waste bottles in the lab.

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General Lab Safety Rules

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➢ Use the “broken glass” labeled container in the lab for the broken glass pieces.

➢ Do not dispose matchstick and litmus paper into the sink.

➢ When mercury thermometers are broken, mercury must not be touched. Notify the

instructor immediately.

➢ Do not hold the materials like hot test tube, crucible, and beaker by naked hand. Use tube

tongs or leave the material to cool on an asbestos wire.

➢ Do not return any chemicals to the stock bottles. Instead, discard into the waste bottles.

➢ Don’t change the locations of chemicals during the experiment.

➢ Clean all the materials you used and hand in to the lab specialist.

➢ Make sure that gas and water taps are closed before leaving the lab.

➢ Wash your hands with soap before leaving the lab

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Precautionary Measures

risk/prevention(H/P)

Risk pictograms

Information from the chemical label

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Chemical Wastes

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• Use appropriate container• Keep closed• CALL Laboratory Specialist for pick up

❖ Do not return any chemicals to the stock bottles. Instead, discard into the waste bottles.

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SAFETY DATA SHEETS (SDS) FOR CHEMICALS

A safety data sheet (SDS) is a standardized document containing occupational health and safety data.

A Safety Data Sheet contains the following information for each chemical substance.

1. Name and content of the substance / mixture

2. Manufacturer information

3. Harmful substance contents

4. Physical and chemical properties

5. Fire and explosion information

6. Hazard information

7. First aid information

8. Storage information

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Typical Precautionary Measures

• Do not breathe vapors

• Use in well-ventilated areas

• Keep container closed when not in use

• Avoid contact with skin

• Wash thoroughly with soap and water after handling

• Keep away from sparks, heat, and flame

• Do not store near combustible materials

• Store in tightly closed container

• Remove and wash contaminated clothing promptly

• Keep from contact with clothing and other combustible materials

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Do not– Use damaged glassware

– Store chemicals near heat, sunlight, or other substances with which they might react

– Store materials on floors or other places where people could trip over them

– Leave equipment unattended when its operating (unless it is designed to do so or you have an SOP)

– Put custodians and fellow workers in danger

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Lab Safety Symbols

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Globally Harmonized

System of Classification

and Labelling of Chemicals (GHS)

GHS is a set of international guidelines that were

developed by the United Nations.

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Emergencies can happen, so

• Avoid working alone in the lab

• Know where emergency phone numbers are posted

• Review MSDS/SDS

• Know where to go and what to do in an emergency

• Know the location of the closest safety showers,

eyewashes, and fire extinguishers

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Being ready for emergencies..

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Know the Emergency Numbers to call

IN ALL CASES

INFORM

THE INSTRUCTORS

IMMEDIATELY

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Emergency Response

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In case of Fire

1. NOTIFY people in the immediate area that there is a fire.

ACTIVATE the nearest FIRE ALARM.

2. CALL 110.

3. EVACUATE the area by using the emergency stairway.

4. NEVER re-enter the building until told by Officials.

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Emergency Response

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In case of Personal Injury

• Check surrounding area for any dangers.

• Call the Medical Center (112)

Victim with an Injury:

• Do not move the injured person unless there is danger of further harm.

• If the injured person is bleeding, place a dry cloth on wound with gentle pressure.

Unconscious Victim:

• Check to see if person is responsive and is breathing.

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Emergency Response

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In case of Spills

• Notify personnel in the area and restrict access.

• Eliminate all sources of ignition.

• Wear gloves and protective eyewear.

• Clean up using suitable absorbent. Put the contaminated

absorbent in a hazardous waste container.

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Common Types of Accidents and Proper Responses

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The following cases must be notified immediately to the instructor.

BURN: Expose the burned area to the tap

water (5-10 min.), apply first aid.

CUT/INJURY: Wash with water and apply

first aid.

FAINTING: Provide person fresh air and

have them lay down and put the head

lower than the body.

FIRE: Notify the instructor immediately.

Put the bunsen burner off. Use shower in

case of hair or clothes caches fire. Use

the fire extinguisher when necessary.

BLEEDING: Compress on the wound,

keep the wound above the heart level and

get medical help.

CHEMICAL SPILL: Clean in a manner

appropriate to the chemical. Aqueous

solutions can be removed with water.

Information your assistant.

ACID BURNS: Use NaHCO3 solution

BASE BURNS: Use Boric acid or Acetic

acid solution

EYE CONTAMINATION: Eye is washed

immediately with plenty of water for at

least 15 minutes (use the eye-wash

shower rooms) Get medical help.

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Electrical Safety

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Do not overload extension cords

Examine cords before each use

Multiplug cords cannot be chained

together

Never work around a wet surface

Never pull a plug from an outlet by its cord

Never place your drinks on

top of your electronics.

They can get you zapped

by electricity.

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Know the locations of…

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Fire extinguisher Alarm box Emergency exit

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Know the locations of…

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Safety shower First Aid Spill kits

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Emergency assembling point

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Do you know where you must go

in case of emergency, accident or

fire?

Do you know where is the

“Acil toplanma yeri” ?

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Emergency assembling point

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In case of emergency / ringing alarm,

meet in front of the main entrance of the building

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Thank you for your attention