chemistry_pigments violet cabbage 4t eso

5
NATURAL PIGMENTS: “VIOLET” GRUP 5 Jaume Adell, Hamza Bouderaa,

Upload: florencisales

Post on 12-Feb-2017

78 views

Category:

Education


0 download

TRANSCRIPT

Page 1: Chemistry_pigments violet cabbage 4t ESO

NATURAL PIGMENTS: “VIOLET”

GRUP 5Jaume Adell, Hamza Bouderaa,

Page 2: Chemistry_pigments violet cabbage 4t ESO

PROCEDURE-We cut the Red cabbage

Page 3: Chemistry_pigments violet cabbage 4t ESO

Extraction-We extracted the pigment of the Red Cabbage by boiling it in water-We separated the violet pigment by filtration

Page 4: Chemistry_pigments violet cabbage 4t ESO

RESULTThe pigment has this chemical formula

Pigment

Dilluted with water

Page 5: Chemistry_pigments violet cabbage 4t ESO

SPECTRUMIn the graph we can see the absorbtion in the violet and green and no absorption for red and blue which gives the colour to the pigment