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Below is a test chemical info box:

Stewartadcock/sandbox
Stereo structural formula of the ammonia molecule
Ball-and-stick model of the ammonia molecule
Ball-and-stick model of the ammonia molecule
Space-filling model of the ammonia molecule
Space-filling model of the ammonia molecule
Names
IUPAC name
Azane
Other names
Hydrogen nitride

Trihydrogen nitride

Nitro-Sil
Identifiers
3D model (JSmol)
3DMet
3587154
ChEBI
ChEMBL
ChemSpider
EC Number
  • 231-635-3
79
KEGG
MeSH Ammonia
RTECS number
  • BO0875000
UNII
UN number 1005
  • InChI=1S/H3N/h1H3 checkY
    Key: QGZKDVFQNNGYKY-UHFFFAOYSA-N checkY
  • InChI=1/H3N/h1H3
    Key: QGZKDVFQNNGYKY-UHFFFAOYAF
  • N
Properties
NH3
Molar mass 17.031 g/mol
Appearance Colourless gas
Odor strong pungent odor
Melting point −77.73 °C (−107.91 °F; 195.42 K)
Boiling point −33.34 °C (−28.01 °F; 239.81 K)
47% (0 °C)
31% (25 °C)
28% (50 °C)[1]
Solubility soluble in chloroform, ether, ethanol, methanol
Vapor pressure 8573 h Pa
Acidity (pKa) 32.5 (−33 °C),[2] 10.5 (DMSO)
Basicity (pKb) 4.75
1.3327
Viscosity 0.276 cP (-40 °C)
Structure
Trigonal pyramid
1.42 D
Thermochemistry
193 J·mol−1·K−1[3]
−46 kJ·mol−1[3]
Hazards
GHS labelling:
GHS04: Compressed GasGHS05: CorrosiveGHS06: ToxicGHS09: Environmental hazard[4]
H221, H280, H314, H331, H400[4]
P210, P261, P273, P280, P305+P351+P338, P310[4]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
1
0
Flash point flammable gas (see text)
Explosive limits 15–28%
Lethal dose or concentration (LD, LC):
0.015 mL/kg (human, oral)
NIOSH (US health exposure limits):
PEL (Permissible)
50 ppm (25 ppm ACGIH- TLV; 35 ppm STEL)
Related compounds
Other cations
Phosphine
Arsine
Stibine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
  1. ^ Perry, Dale L.; Phillips, Sidney L. (1995). Handbook of inorganic compounds. CRC Press. p. 17. ISBN 0-8493-8671-3.((cite book)): CS1 maint: multiple names: authors list (link)
  2. ^ Perrin, D. D., Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution; 2nd Ed., Pergamon Press: Oxford, 1982.
  3. ^ a b Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A22. ISBN 0-618-94690-X.
  4. ^ a b c Sigma-Aldrich Co., Ammonia. Retrieved on 2013-07-20.
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