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A0821112

Ammonia solution , 2.0Minethanol , 7664-41-7

CAS NO.:7664-41-7

Empirical Formula: H3N

Molecular Weight: 17.03

MDL number: MFCD00011418

EINECS: 231-635-3

Update time: 2022-07-08

PRODUCT Properties

Melting point: −78 °C(lit.)
Boiling point: 60 °C
Density  1.023 g/mL at 25 °C
vapor density  0.6 (vs air)
vapor pressure  8.75 atm ( 21 °C)
FEMA  4494 | AMMONIA (ALSO INCLUDES AMMONIUM CHLORIDE)
Flash point: 52 °F
storage temp.  0-6°C
solubility  Miscible with ethanol (95%) and water.
pka 38(at 25℃)
form  Liquid
color  Colorless
Odor Intense pungent odor detectable at 17 ppm
PH pKa1= 9.461(25℃)
Odor Type ammoniacal
Odor Threshold 1.5ppm
explosive limit 25%
Water Solubility  soluble
Sensitive  Hygroscopic
Merck  14,492
BRN  3587154
Henry's Law Constant 1.31 at 0 °C, 2.92 at 20 °C (droplet train apparatus, Shi et al., 1999)
Exposure limits TLV-TWA 25 ppm (~18 mg/m3) (ACGIH and MSHA), 50 ppm (OSHA); STEL 35 ppm; IDLH 500 ppm (NIOSH).
Dielectric constant 25.0(-59℃)
Stability: Stable. Hygroscopic. Flammable. Incompatible with acids, strong oxidizing agents. May react violently with acids, aldehydes, alkylene oxides, amides, boron, boron halides, calcium, chlorine azide, chloric acid, chlorine monoxide, chlorites, halogens, heavy metals and many other materials - check the complete data sheet before use!
LogP 0.23 at 20℃

Description and Uses

Ammonia is a colorless, pungent-smelling gas that is one of the most important industrial inorganic chemicals. It is widely used in fertilizers, refrigerants, explosives, cleaning agents, and as a feedstock to produce numerous other chemicals. Ammonia ranks as one of the top 10 chemicals produced annually.

NH3 (ammonia) is produced in the so-called Haber Bosch process. This industrial process uses finely divided iron as catalyst and a reaction temperature of around 450 °C at a pressure of 50 atm. Ammonia is used to produce fertilisers, nitric acid, nylon and many more products important to our modern life style.
N2(g) + 3H2(g) → 2NH3(g)

Safety

Symbol(GHS) 
GHS04,GHS05,GHS06,GHS09
Signal word  Danger
Hazard statements  H280-H314-H331-H410
Precautionary statements  P260-P273-P280-P303+P361+P353-P304+P340+P311-P305+P351+P338+P310
Hazard Codes  F,N,T,Xn
Risk Statements  11-20-36/37/38-67-39/23/24/25-23/24/25-10-50-34-23-36-66-40-36/37-19
Safety Statements  26-7-45-36/37/39-16-9-61-36/37
OEB A
OEL TWA: 25 ppm (18 mg/m3), STEL: 35 ppm (27 mg/m3)
RIDADR  UN 1219 3/PG 2
WGK Germany  2
RTECS  BO0875000
Autoignition Temperature 690 °C
TSCA  Yes
DOT Classification 2.2 (Non-flammable gas)
HazardClass  3
PackingGroup  II
HS Code  28141000
Toxicity LD50 oral (rat) 350 mg/kg
LC50 inhal (rat) 2000 ppm (4 h)
PEL (OSHA) 35 ppm (27 mg/m3)
TLV-TWA (ACGIH) 25 ppm (17 mg/m3)
STEL (ACGIH) 35 ppm (27 mg/m3)
IDLA 300 ppm

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