95 °F (USCG, 1999)
107 °C (decomposes)
Decomposes below its melting point, dissociating into ammonia, carbon dioxide and water.
Density
1.57 at 68 °F (USCG, 1999) - Denser than water; will sink
1.586 g/cu cm
1.58 g/cm³
Physical Description
Ammonium bicarbonate appears as a white crystalline solid having the odor of ammonia. Soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Used to make other ammonium compounds, in food processing, and for other uses.
Pellets or Large Crystals; NKRA; Other Solid; Liquid; Dry Powder
White crystals or crystalline powder
Colorless or white solid with a faint odor of ammonia; [Merck Index] White crystalline solid;
COLOURLESS OR WHITE CRYSTALS WITH CHARACTERISTIC ODOUR.
Appearance
Colorless or white crystals
Shiny, hard, colorless or white prisms or crystalline mass
State
Solid
Storage Conditions
Store below 33 °C
Store in tightly closed containers in a cool, well-ventilated area away from caustics (such as sodium hydroxide or potassium hydroxide), because ammonia gas is released.
Computed Properties
Structural Parameters
Heavy atom count
5
H-bond acceptors
2
H-bond donors
2
Molar refractivity
14.01
TPSA
96.86
LogP / Solubility
WLOGP
-0.74
MLOGP
-0.66
XLogP3
-0.74
Consensus LogP
-0.71
Log S (ESOL)
0.13
Class (ESOL)
Highly soluble
Log S (Ali)
0.32
Class (Ali)
Highly soluble
Log S (SILICOS-IT)
0.44
Class (SILICOS-IT)
Highly soluble
ADME
GI absorption
Low
BBB permeant
No
P-gp substrate
No
CYP1A2 inhibitor
No
CYP2C19 inhibitor
No
CYP2C9 inhibitor
No
CYP2D6 inhibitor
No
CYP3A4 inhibitor
No
Log Kp (skin permeation)
-3.72
Drug-likeness / Medicinal Chemistry
Lipinski
Yes
Ghose
No
Veber
Yes
Egan
Yes
Muegge
No
Bioavailability score
0.55
Leadlikeness
No
Synthetic Accessibility
1
Safety & Transport
Pictogram(s)
Irritant
Signal
Warning
GHS Hazard Statements
H302 (98.4%): Harmful if swallowed [Warning Acute toxicity, oral]
H412 (10.3%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]