Product Identification

Product Name

Ammonium acetate

Synonyms

Acetic acid, ammonium salt

CAS

631-61-8

Formula

C2H7NO2

Molecular Weight

77.08

EINECS

211-162-9

RTECS

AF3675000

RTECS Class

Other

Merck

13,495

Beilstein/Gmelin

3564799

Beilstein Reference

4-02-00-00094

Physical and Chemical Properties

Appearance

White crystals or granules, may have a slight vinegar odor deliquescent.

Solubility in water

Slightly soluble

Melting Point

114

Density

1.171 g/cm3 (25 C)

pKa/pKb

4.6(Acetic Acid), 9.3(Ammonium Hydroxide)(at 25℃) (pKa)

Usage

Explosives, foam rubbers, vinyl plastics, & drugs.

First Aid Measures

Ingestion

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.

Inhalation

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

Skin

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

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 tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture.

Handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation.

Hazards Identification

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

May cause skin irritation.

Eyes

May cause eye irritation.

Ingestion

May cause irritation of the digestive tract. May cause muscle tremor and impaired motor function. The toxicological properties of this substance have not been fully investigated.

Hazards

Containers may explode when heated.

EC Risk Phrase

R 36/37/38

EC Safety Phrase

S 26 36

UN (DOT)

9079

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

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Exposure Effects

Chronic ingestion may cause liver damage.

Poison Class

5

Fire Fighting Measures

Flash Point

136

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water runoff can cause environmental damage. Dike and collect water used to fight fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam. Use agent most appropriate to extinguish fire.

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. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Stability

Stable at room temperature in closed containers under normal storage and handling conditions. Deliquescent; tends to lose ammonia.

Incompatibilities

Strong oxidizing agents, strong acids, moisture.

Decomposition

Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, ammonia.

Combustion Products

Irritating vapors of ammonia acetic acid, and nitrogen oxides may form in fires.

Transport Information

UN Number

9079

Hazard Class

9

HS Code

2915 29 00