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Ammonia Gas NH3

Ammonia is a colorless and toxic gas with a special irritating odor under normal temperature and pressure, and is lighter than air. Ammonia is stable at room temperature, but decomposes into hydrogen and nitrogen at high temperatures. It is flammable in the air, but it is generally difficult to catch fire. If it is continuously exposed to the fire source, it will burn, and something can cause an explosion.
Cylinder:
Availability:
Quantity:
  • 7664-41-7

  • OEM/ODM

Technical Indicators

Components/Impurities

Ammonia/3.0N

Ammonia/5.0N

Ammonia/6.4N

Ammonia content NH3

99.9%

99.999%

99.99994%

Hydrogen H2

-

-

﹤0.1ppm

Oxygen O2 + Argon Ar

-

≤2.0ppm

﹤0.1ppm

nitrogen N2

-

≤5.0ppm

-

carbon monoxide CO

-

≤1.0ppm

﹤0.05ppm

carbon dioxide CO2

-

-

﹤0.1ppm

Total Carbon (Methane) THC

-

≤1.0ppm

﹤0.5ppm

Water H2O

≤0.1%

≤5.0ppm

﹤0.2ppm


The Packing

Type of cylinder

Gas pressure

Gas volume

High purity carbon dioxide

40L cylinder

About 1MPa

25m3

20kg

44L DOT cylinder

About 1MPa

29m3

22.7kg

400L high purity liquid ammonia Y tank

About 1MPa

275m3

212kg

800L Industrial Ammonia 

Y Tank

About 1MPa

550m3

400kg

Cylinder interface: QF-11/CGA660/JISS720


Transport information

Transportation information

Chemical symbol

NH3

CAS No.

7664-41-7

Canadian Shipping Classification

Toxic gas

DOT tags

Toxic gas

Danger level

2.3

Substance Identification (S) No.

1005

UN No.

UN 1005

Main hazards

Poisonous

Toxicity (TLV)

25mg/m3


Physical properties

Physical properties

Chemical name

NH3

Molar mass

17.031

Gas density (0℃, 101.325kPa)

0.7708kg/m3

Relative density (25℃, 101.325KPa, air=1)

0.597

Gas-liquid volume ratio (15℃, 100kPa)

947L/L

Critical temperature

132.4℃

Critical pressure

11277kPa

Critical density

235kg/m3

Compression factor

 

Temperature(K)/Pressure

300kPa 380kPa 420kPa 580kPa

300K

0.9906 0.9463 0.8855

380K

0.9966 0.9785 0.9573

Heat of fusion (-77.74℃, 6.677kPa)

331.59kJ/kg

Heat of vaporization (-33.41℃, 101.325kPa)

1371.18kJ/kg

Specific heat capacity (300k, 101.33kPa)

Cp=2159.9J/(kg • K)

Specific heat ratio (gas, 46.8℃, 101.325kPa)

Cp/Cv=1.307

Vapor pressure (-20℃)

186.4kPa

(0℃)

410.4kPa

(20℃)

829.9kPa

Viscosity (gas, 101.325kPa, 20℃)

0.00982mPa • S

(liquid, -33.5℃)

0.255mPa • S

Surface tension (20℃)

21.2mN/m

Thermal conductivity (100kPa, 300k)

0.0247W/(m•K)

(liquid, 10℃)

0.501℃

Refractive index (gas, 0℃, 101.325kPa)

1.000383

(Gas, 25℃, 101.325kPa)

1.0003442

Toxicity level

2

Flammability class

1

Explosiveness level

0

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