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Katusepapi tn 4, korpus B1, postkast nr 4, Tallinn, Harju maakond, 11412
+37255949384

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Industrial chemistry

Ammonia

Other names: Hydrogen nitride, Trihydrogen nitride, Nitro-Sil, Azane

CAS No: 7664-41-7

EC №: 231-635-3

Molecular formula: NH3

NH3 is colorless, pungent gas composed of nitrogen and hydrogen. Ammonia easily liquefied by compression or cooling for use in refrigeration and air-conditioning equipment. Its major use is as a fertilizer, applied directly to soil from tanks of the liquefied gas. It also employed as fertilizers are salts of ammonia, including ammonium phosphate and ammonium nitrate (the latter used in high explosives as well). Ammonia has many other industrial uses such as a raw material, catalyst and alkali. It dissolves readily in water to form ammonium hydroxide, an alkaline solution familiar as a household cleaner.

Use for

Ammonia is mainly used for the production of:

• Nitrogen fertilizers;

• Explosives;

• Nitric acid and soda;

• Polymers;

As well as:

• Solvent;

• Refrigerant;

• Medicaments;

• Antifreeze additive for building mixture.

Physical properties

Molecular weight g mol 17.031
Density, at 15 °C kg/m3 0.73
Liquid density kg/m3 681.9
Boiling point °C -33.34
Melting point °C -77.73
Solubility in water (0°C/15 °C) % 47/31
Vapor pressure psia 145
Enthalpy of formation kJ/mol -45,95
Enthalpy of melting kJ/mol 5.655
Molar heat capacity, at 150C kJ/kg*°C 2.175
Refractive index   1.3327
Viscosity (-40C0) cP 0.276

Quality Standard:

Item

Highgrade

Firstclass

Standard

NH3, %

99.9

99.9

99.6

Residuum, %

0.2

0.16

-

H2O, %

0.1

0.07

-

Oil, mg/kg

5

1.6

-

Fe, mg/kg

1

0.7

 

Package:

• Steel drum, 400 L,

• Steel drum, 800 L,

• 20′ FCL, 24tons.

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