Indigo Carmine

Indigo Carmine AC – Specification

Name – Indigo Carmine
Revision No – 00
Classification – C.I No.-73015/E132/F.D&C BLUE #2/Indigotine/C.I. FOOD BLUE#1/I.S.1698
Effective Date – 01/17/2000

No. Characteristic Requirement
Description Reddish Blue Powder
1 Total colour/Assay, percent by Mass, min. 85.00
2 Water-insoluble matter, percent by mass, Max. 00.20
3 Combined ether extracts, percent by mass, Max. 00.20
4 Subsidiary dyes, percent by mass, Max. 02.00
5) Dye intermediates, percent by mass, max.

• Isatin sulphanic acid,

• 5- Sulfoanthranilic acid

6 Unsulfonated primary aromatic amine (calculated as aniline) percent by mass, max. 00.01
7 Lead, mg/kg, Max. 10.00
8 Arsenic, mg/kg, Max. 03.00
9 Heavy metals, (as pb) mg/kg, max 40.00
10 Mercury, mg/kg, Max. 01.00
11 Cadmium, mg/kg, Max 01.00

Indigo Carmine – Material Safety Data Sheet (MSDS)

Information of the substance and of the company

Commercial Product Indigo Carmine
Synonyms C.I.Food Blue #1
FD&C Blue #2
Chemical Family(class) Indigoid
Chemical Name Disodium 3,3′-dioxo-2,2′-bi-indolylidene-5,5′-disulphonate.

Chemical Characterization Information On Ingredients

E.E.C.No. E-132
EINECS. 212-728-8
CAS No. 860-22-0(5,5’isomer)
C.I.No. 73015
Molecular Formula C16H8N2O8S2Na2
Molecular Weight 466.36
According to documentation available is edible dye.

Physical and Chemical Properties

Physical State Solid, Fine Powder/Granules.
Colour Dark Blue.
Odor Odorless
pH value 5-6
Boiling Point Not applicable
Melting Point No sharp melting point observed
Flash Point Not applicable
Substance does not having any oxidising property
Ignition Temperature Not applicable
Explosion Limit Not applicable
Vapour Pressure Not applicable
Density 0.80
Solubility in water 15 gms/litre

Stability & Reactivity

Hazardous Reactions No
Hazardous Decomposition
Not Established
Chemical In Compatibility Strong Reducing Agents, Decolourising Agents, Strong Acids & Alkalies
Condition To Avoid I) Heating To High Temperature
II) Storage under damp atmosphere
Reactivity Data This material is stable under condition of normal handling and use, but sensitive to moist air.

Handling & Storage

Handling Avoid formation of dust
Storage Keep in closed container at ambient temperature & humidity
Do Not Store Together Store Colourwise

Exposure Controls / Personal Protection

Respirator Protection May be used (In case dust formation particle filter e.g. DIN 3181-21 may be)
Ventilation Local ventilation capable of minimising dust emission at the point of use
Eye Protection Protective glasses may be used
Hand Protection Rubber gloves may be used wash the hands before and at the end of work with water, soap

Hazards Identification

The usual precautions taken when handling of dyes should be observed.
As the substance is edible dye, no hazardous to water supply.

First Aid Measures

Eye Contact Wash eyes with plenty of water for at least 15 minute
Skin Contact Wash off with plenty of water & soap
Injection Plenty full water to be taken inside, special medical attention may not be necessary

Accidental Release Measures

After Spillage Sweep up spilled substance carefully, then clean with water
Absorbent Material Use clean cotton cloth

Disposal Consideration

Can be sent to an incineration plant in accordance with local regulations

Fire Fighting Measures

Extinguishing Media Use dry chemicals or carbon dioxide CO2
Thermal Decomposition Dangerous decomposition is not anticipated

Toxicological Information (In Rats & Mice)

LD 50 Oral 6000-10000 mg/kg
body weight
LD 50 intraperitoneal 3800-5000 mg/kg body weight
LD 50 skin No adverse or pathological effect
LD 50 inhalation Not Known
Eye Irritation Not irritating to Eye
Dermal Irritation Not irritating to skin.
Acceptable Daily Intake
0-2.5 mg/kg body weight
0-2.5 mg/kg body weight

Ecological Information

Water Hazard Being an edible dye, Not established

Transport Information

Not Hazardous Cargo.
Keep seperated from hazardous chemicals.

Regulatory Information

Manufactured as per specification set by BIS (India), FAO/WHO (JECFA). Each country has its own
laws on colouring of food-stuffs, colourant permitted and their purity standards

Other Information

This product should be stored, handled and used in accordance with good industrial hygenic practices and in conformity with any legal regulation. The information contained herein is based on the present state of our knowledge and is intended to describe our products from the point of view of health and safety requirements. It should not therefore be construed as guaranteeing specific properties



Note: All requirement shall be on dry basis.
For total dye content: requirement within tolerance limit of ±7.5% the declared of value.

Vinayak Ingredients India is a leading manufacturer and supplier of Indigo Carmine, for enquiries please contact us at the details mentioned below:

Tel: +91 9167676662