Product Identification

Product Name

2,3-Dihydroxybutanedioic acid diammonium salt

Synonyms

(r)-2,3-Dihydroxybutanedioic acid, diammonium salt
Azane (2R,3R)-2,3-dihydroxybutanedioic acid
Diammonium tartrate
l(+)-Tartaric acid, diammonium salt

CAS

3164-29-2

Formula

C4H12N2O6

Molecular Weight

184.18

EINECS

221-618-9

RTECS

WW8050000

RTECS Class

Other

Beilstein/Gmelin

3567408

Physical and Chemical Properties

Appearance

Ammonium tartrate is a white crystalline solid.

Solubility in water

Soluble

Density

1.601 g/cm3 (20 C)

Usage

Textile industry. Dosimetry using esr spectroscopy.

First Aid Measures

Ingestion

If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid. Wash mouth out with water.

Inhalation

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.

Skin

Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.

Eyes

Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

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

Handling

Wash thoroughly after handling. Wash hands before eating. Use with adequate ventilation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.

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

May cause skin irritation. Low hazard for usual industrial handling.

Eyes

May cause eye irritation.

Hazards

Containers may explode when heated.

UN (DOT)

9091

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

4

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Fire Potential

May burn but does not ignite readily.

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, carbon dioxide, nitric oxide (NOx) and ammonia (NH3) fumes.

Combustion Products

Toxic oxides of nitrogen or ammonia gas may form in fires.

Transport Information

UN Number

9091

Hazard Class

6.1