Hydrophilic Raw Materials: Colorants

Question 1

Carmine

Answer 1

-is the aluminum or calcium lake of the coloring agent cochineal
-anthraquinones structur
-dérivâtes by cochineal(dactylooius coccus) the insect that produces carminic acid
-carminic acid which occurs as 17-24% of the weight of dry insects, can be extracted from the insect bodies and eggs, and mixed with aluminum or calcium salts to make Carmine dyes
-primarily used in cosmetic lipstick coloring and for food

Question 2

FD&C blue no 1

Answer 2

-is classified as a triphenylmethane color

Color: bright blue
Light stability: good
Heat stability: excellent
Soluble: water, ethanol, propylene glycol
pH range: 2.0 - 14.0
Common Name: brillant blue FCF

Question 3

FD&C Green No3

Answer 3

-is classified as a triphenylmethane color

Color: sea green
Light stability: good
Heat stability: excellent
Soluble: water, ethanol, propylene glycol
pH range: any
Common Name: fast green

Question 4

FD&C Red No 40

Answer 4

-is classified as a monoazo color

Color: orange red
Light stability: good
Heat stability: moderate
Soluble: water, ethanol, propylene glycol
pH range: 2.0 - 14.0
Common Name: Allura Red AC

Question 5

FD&C Yellow No 6

Answer 5

-is classified as a monoazo color

Color: yellow orange
Light stability: moderate
Heat stability: fair
Soluble: water, ethanol, propylene glycol
pH range: 2.0 - 14.0
Common Name: sunset yellow

Question 6

D&C Green 5

Answer 6

-is classified as an anthraquinone color

Color: blueish green powder
Light stability: moderate
Heat stability: fair
Soluble: water, ethanol, propylene glycol
pH range: 2.0 - 14.0
Common Name: alizarine green