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Ammonium hydroxide

CAS:
1336-21-6
MF:
H5NO
MW:
35.05

Properties

Melting point:
-77°C
Boiling point:
36°C
Density 
0.91 g/mL at 20 °C
vapor density 
1.2 (vs air)
vapor pressure 
115 mmHg at 20 °C for 29% solution
storage temp. 
2-8°C
form 
Liquid, Single Sub-Boiling Quartz Distillation
pka
9.3(at 25℃)
Specific Gravity
approximate 0.96 (10%, 15℃)
color 
Colorless
Odor
Strong pungent ammonia odor detectable at 17 ppm
explosive limit
27%
Water Solubility 
Miscible with water.
λmax
λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01
Merck 
14,494
BRN 
3587154
Stability:
Stable. Incompatible with copper, copper alloys, acids, galvanised iron, zinc, aluminium, bronze, dimethyl sulphate, mercury, alkali metals.
InChIKey
VHUUQVKOLVNVRT-UHFFFAOYSA-N

Safety Information

Symbol(GHS) 

GHS05,GHS07,GHS09
Signal word 
Danger
Hazard statements 
H401-H402-H303-H302-H314-H335-H400-H315-H318-H412-H410
Precautionary statements 
P309-P260h-P301+P330+P331-P405-P501a-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P391-P305+P351+P338+P310-P260-P301+P312+P330-P264-P280a-P310a-P321-P332+P313-P310
Hazard Codes 
C,N
Risk Statements 
34-50-22
Safety Statements 
26-36/37/39-45-61
RIDADR 
UN 2672 8/PG 3
WGK Germany 
2
RTECS 
BQ9625000
34
Autoignition Temperature
690 °C (for ammonia)
TSCA 
Yes
HazardClass 
8
PackingGroup 
III
HS Code 
28142000
Toxicity
LD50 oral (rat) 350 mg/kg
PEL (OSHA) 35 ppm (27 mg/m3)
TLV-TWA (ACGIH) 25 ppm (17 mg/m3)
STEL (ACGIH) 35 ppm (27 mg/m3)

Use

Ammonium hydroxide is utilized in numerous applications: Ammonium hydroxide is used as a cleaning agent and sanitizer in many household and industrial cleaners. Ammonium hydroxide is also used in the manufacture of products such as fertilizer, plastic, rayon and rubber. Aqueous ammonia is corrosive to aluminum alloys, copper, copper alloys, and galvanized surfaces. Aqueous ammonia is an excellent acid neutralizer. In furniture making, ammonium hydroxide is used to darken or stain wood containing tannic acid. In food production, ammonium hydroxide is used as a leavening agent or acidity regulator and is classified by the Food and Drug Administration as generally recognized as safe (GRAS). Its pH control abilities make it an effective antimicrobial agent. Ammonium hydroxide is also used to treat straw, producing ammoniated straw that is edible for cattle. In the tobacco industry, ammonium hydroxide is used for flavor enhancement and as a processing aid. Aqueous ammonia is used in the laboratory most often as a complexant and base in inorganic analysis. It can dissolve silver residues, and when used with copper (II) solutions, provides a deep blue coloration.

309 supplier list of "Ammonium hydroxide"

  • Product Name:1336-21-6
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  • Product Name:Ammonium hydroxide
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