Product Identification

Product Name

FD&C Red No. 2

Synonyms

Acid amaranth
Acid amaranth i
Acid amaranth n
Acid leather red 12bw
Acid leather rubine s
Sodium (Z)-3-hydroxy-4-((4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate

CAS

915-67-3

Formula

C20H11N2Na3O10S3

Molecular Weight

604.48

EINECS

213-022-2

RTECS

QJ6550000

RTECS Class

Tumorigen; Drug; Mutagen; Reproductive Effector

Merck

12,391

Beilstein/Gmelin

4122311

Physical and Chemical Properties

Appearance

Dark red to dark purple powder. Almost no odor. Tastes salty.

Solubility in water

1 g in 15 ml

Melting Point

218 - 220

Density

1.50 g/cm3 (20 C)

Usage

Industrial applications include dyeing leather, staining wood, coloring paper coatings and coloring photographs. Amaranth finds limited use as a biological stain. It can be used as a reagent for the detection of nitrites and nitrates.

First Aid Measures

Ingestion

Wash mouth out with water. Get medical aid if irritation or symptoms occur.

Inhalation

Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.

Skin

Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.

Eyes

Get medical aid. Gently lift eyelids and flush continuously with water.

Handling and Storage

Storage

Store in a cool, dry place. Store in a tightly closed container.

Handling

Avoid contact with skin and eyes. Avoid ingestion and inhalation. Use only in a chemical fume hood.

Hazards Identification

Ingestion

Ingestion of large amounts may cause gastrointestinal irritation. Expected to be a low ingestion hazard.

Inhalation

May cause respiratory tract irritation. Low hazard for usual industrial handling.

Skin

Non-irritating to the skin.

Eyes

Non-irritating to the eyes.

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators

Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Poison Class

5

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use water spray, dry chemical, or foam. Do NOT use carbon dioxide.

Fire Potential

This material is probably combustible.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container.

Stability and Reactivity

Stability

Stable under normal temperatures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.