Name: Ammonia

English name: ammonium hydroxide

Other name: Amonia water

Chemical formula: NH₃·H₂0

Molecular weight: 35.045

CAS registration number: 1336-21-6

EINECS accession number: 215-647-6

Melting point: -77.73℃

Boiling point: -33.34°C

Water solubility: easily soluble

Density: 0.91 g/cm³ (25%) 0.88 g/cm³ (32%)

External view: colorless and transparent liquid

Application: chemical field

Safety description: S26 S45 S61 S36/S37/S39

Hazard symbol: Harmful to the environment

Hazard description: R34 R50

Dangerous goods transportation number: UN 2672 8/PG 3

Saturated vapor pressure: 1.59kPa(20℃)

Explosion limit: 25%-29%

Danger level: 8

H·S code: 2814200010

The main purpose

1. Ammonia is an important reagent in the laboratory, mainly used as an analytical reagent, neutralizer, alkaloid leaching agent, aluminum salt synthesis and weak alkaline solvent. Used in the synthesis of aluminum salts and the verification and determination of certain elements (such as copper and nickel) to precipitate hydroxides of various elements.

2. As an alkaline disinfectant, it is used to disinfect sarin poisons.

3. It is used in wool spinning, silk, printing and dyeing industries to wash wool, woolen cloth, grey cloth, to dissolve and adjust the pH, and as a dyeing aid.

4. In agriculture, it can be used as fertilizer after dilution.