Ammonium Bicarbonate Baking Soda
Chemical Formula: AC
CAS Number:1066-33-7
HS CODE:2836994000
Physical state: White powder
Assay:99 – 100.5%
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Ammonium bicarbonate
Thermal decomposition (NH₄HCO₃ → NH₃ + CO₂ + H₂O) at ~60°C.
Weak alkalinity (pH ~7.8–8.2).
Hygroscopicity, absorbing moisture.
Reacts with acids, releasing CO₂.
Volatile NH₃ odor. Unsuitable for prolonged high-temperature storage. (70 words)
| Test items | Stand% |
|
Ammonium Bicarbonate % |
99.2%min |
|
Ammonia(NH3)% |
21.7min |
|
Lead(as pb)% |
0.0002max |
|
As % |
0.0002max |
|
Mercury Hg% |
0.0001max |
| Fe% |
<0.002 |
It is a key component in some dry chemical fire extinguishers. It decomposes when exposed to heat, absorbing energy and releasing carbon dioxide and ammonia, which help to suffocate flames. Its use is especially common in fire suppressants for electrical fires and flammable liquids, where non-conductive and quick-acting agents are required.








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