Ammonium bicarbonate

  • Acid ammonium carbonate
  • Ammonium hydrogen carbonate
Formula
NH4HCO3
Structure
Description
A white crystalline solid having the odor of ammonia.
Uses
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.

Registry Numbers and Inventories.
CAS
1066-33-7
EC (EINECS/ELINCS)
213-911-5
RTECS
BO8600000
RTECS class
Other
UN (DOT)
9081
Merck
13,497
Beilstein/Gmelin
4329606
EPA OPP
73401
Swiss Giftliste 1
G-7596
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
CHO3*H4N
Formula mass
79.05
Melting point, °C
35.0
Vapor pressure, mmHg
60
Density
1.57 g/cm3 (20 C)
Solubility in water
17.4 g / 100 ml

Hazards and Protection.
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.
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.
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
Stable under normal shipping and handling conditions.
Incompatibilities
Can react dangerously with acids, caustic alkalies, and strong oxidizing agents.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide, ammonia and/or derivatives.

Fire.
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.
Hazards
Containers may explode when heated.
Combustion products
Irritating and toxic ammonia gas may form in fires.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

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

First aid
 
   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.

Transport.
UN number
9081
Response guide
Hazard class
6.1
USCG CHRIS Code
ABC
 
Std. Transport #
4962657