Product Identification

Product Name

Ammonium oxalate

Synonyms

Diammonium oxalate monohydrate
Ethanedioic acid, diammonium salt, monohydrate

CAS

6009-70-7

Formula

C2H10N2O5

Molecular Weight

142.11000000000001

EINECS

214-202-3

Merck

12,571

Beilstein/Gmelin

3759830

Beilstein Reference

4-02-00-01819

EC Index Number

607-007-00-3

EC Class

harmful

Physical and Chemical Properties

Appearance

white orthorhombic crystals

Solubility in water

45 g/L (20 C)

Melting Point

70

Density

1.577 g/cm3 (25 C)

Heat Of Vaporization

Heat Of Combustion

-811 kJ/mol

Vapor Density

4.3

Odor threshold

Odorless

First Aid Measures

Ingestion

Do NOT induce vomiting. 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 immediately.

Inhalation

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.

Skin

Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Destroy contaminated shoes.

Eyes

Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Handling and Storage

Storage

Keep away from sources of ignition. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area.

Handling

Wash thoroughly after handling. Wash hands before eating. Minimize dust generation and accumulation. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Do not allow contact with water. Wash clothing before reuse. Discard contaminated shoes.

Hazards Identification

Inhalation

Causes severe irritation of upper respiratory tract with coughing, burns, breathing difficulty, and possible coma. May cause effects similar to those described for ingestion. May cause pulmonary edema and severe respiratory disturbances.

Skin

Causes skin burns.

Eyes

Causes eye burns. May cause temporary corneal clouding and ulceration.

Ingestion

May cause kidney damage. Causes severe pain, nausea, vomiting, diarrhea, and shock. Causes severe digestive tract burns with abdominal pain, vomiting, and possible death. May cause hemorrhaging of the digestive tract. Can cause nervous system damage. May cause cardiovascular effects including low blood pressure and shock.

Hazards

Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.

EC Risk Phrase

R 21/22

EC Safety Phrase

S 36/37

UN (DOT)

2325

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.

Exposure Effects

Occasional complications include: GI hemorrhage, kidney and liver damage, cardiac failure, and pulmonary edema. May cause kidney damage.

Poison Class

2 (Very strong toxins)

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. Substance is noncombustible. Extinguishing media: Do NOT get water inside containers. For small fires, use dry chemical, carbon dioxide, or water spray. For large fires, use dry chemical, carbon dioxide, alcohol-resistant foam, or water spray. Cool containers with flooding quantities of water until well after fire is out.

Fire Potential

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.

Accidental Release Measures

Small spills/leaks

Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Remove all sources of ignition. Provide ventilation. Do not get water inside containers.

Stability and Reactivity

Incompatibilities

Sodium hypochloride + ammonium acetate.

Stability

Stable under normal temperatures and pressures.

Decomposition

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitric oxide (NOx) and ammonia (NH3) fumes.

Combustion Products

Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number

2325

Hazard Class

3

Packing Group

III

HS Code

2917 11 00