Product Identification

Product Name

Ammonium bicarbonate

Synonyms

Acid ammonium carbonate
Ammonium hydrogen carbonate

CAS

1066-33-7

Formula

CH5NO3

Molecular Weight

79.05

EINECS

213-911-5

RTECS

BO8600000

RTECS Class

Other

Merck

13,497

Beilstein/Gmelin

4329606

Physical and Chemical Properties

Appearance

A white crystalline solid having the odor of ammonia.

Solubility in water

17.4 g / 100 ml

Melting Point

35

Vapor Pressure

60

Density

1.57 g/cm3 (20 C)

Usage

In baking powder formulations, in cooling baths, in fire extinguishers, manufacture porous plastics, ceramics, manufacture dyes, pigments, in compost heaps to accelerate decompn, as fertilizer, for defatting textiles, in cold wave solns, in chrome leather tanning, to remove gypsum from heat exchanges and other processing equipment.

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.

Inhalation

Remove from exposure to fresh air immediately. 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. If irritation develops, get medical aid.

Handling and Storage

Storage

Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling

Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.

Hazards Identification

Inhalation

Low hazard for usual industrial handling. Excessive inhalation may cause minor respiratory irritation.

Skin

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

Eyes

May cause mild eye irritation.

Ingestion

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

Hazards

Containers may explode when heated.

EC Risk Phrase

R 22

EC Safety Phrase

S 36/37

UN (DOT)

9081

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 gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.

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

Increases in blood pressure and pulse have been reported. An altered mental status (coma) may be seen, but is not characteristic unless hypoxemia occurs. Seizures may occur with extensive absorption. No data were available to assess the teratogenic potential of this agent. <br>Decreased egg production has occurred in experimental animals. Ammonia crosses the ovine placental barrier. <br>No data were available to assess the potential effects of exposure to this agent during lactation. <br>No information about possible male reproductive effects was found in available references.

Poison Class

-

Fire Fighting Measures

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use extinguishing media appropriate to the surrounding fire. Substance is noncombustible. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.

Fire Potential

Noncombustible.

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

Incompatibilities

Can react dangerously with acids, caustic alkalies, and strong oxidizing agents.

Stability

Stable under normal shipping and handling conditions.

Decomposition

Nitrogen oxides, carbon monoxide, carbon dioxide, ammonia and/or derivatives.

Combustion Products

Irritating and toxic ammonia gas may form in fires.

Transport Information

UN Number

9081

Hazard Class

6.1