User:Stewartadcock/sandbox

Stewartadcock/sandbox
Ball-and-stick 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
CAS Number	7664-41-7 ;
3D model (JSmol)	Interactive image;
3DMet	B00004;
Beilstein Reference	3587154
ChEBI	CHEBI:16134 ;
ChEMBL	ChEMBL1160819 ;
ChemSpider	217 ;
EC Number	231-635-3;
Gmelin Reference	79
KEGG	D02916 ;
MeSH	Ammonia
PubChem CID	222;
RTECS number	BO0875000;
UNII	5138Q19F1X ;
UN number	1005
	InChI InChI=1S/H3N/h1H3 Key: QGZKDVFQNNGYKY-UHFFFAOYSA-N ; InChI=1/H3N/h1H3 Key: QGZKDVFQNNGYKY-UHFFFAOYAF;
	SMILES N;
Properties
Chemical formula	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)
Solubility in water	47% (0 °C); 31% (25 °C); 28% (50 °C)
Solubility	soluble in chloroform, ether, ethanol, methanol
Vapor pressure	8573 h Pa
Acidity (pKa)	32.5 (−33 °C), 10.5 (DMSO)
Basicity (pKb)	4.75
Refractive index (nD)	1.3327
Viscosity	0.276 cP (-40 °C)
Structure
Molecular shape	Trigonal pyramid
Dipole moment	1.42 D
Thermochemistry
Std molar; entropy (S⦵298)	193 J·mol−1·K−1
Std enthalpy of; formation (ΔfH⦵298)	−46 kJ·mol−1
Hazards
	GHS labelling:
Pictograms
Hazard statements	H221, H280, H314, H331, H400
Precautionary statements	P210, P261, P273, P280, P305+P351+P338, P310
NFPA 704 (fire diamond)	3 1 0
Flash point	flammable gas (see text)
Explosive limits	15–28%
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	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). Infobox references

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^ 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)
^ Perrin, D. D., Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution; 2nd Ed., Pergamon Press: Oxford, 1982.
^ ^a ^b Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A22. ISBN 0-618-94690-X.
^ ^a ^b ^c Sigma-Aldrich Co., Ammonia. Retrieved on 2013-07-20.

[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.

[b1-3] Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A22. ISBN 0-618-94690-X.

[sigma-4] Sigma-Aldrich Co., Ammonia. Retrieved on 2013-07-20.

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