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Own Plant Nitrogen Gas N2

Nitrogen is a colorless, odorless and tasteless gas at room temperature and pressure, and contains about 79% in air. Nitrogen does not burn or support combustion, and is non-toxic in itself. When the nitrogen content in the air increases, it will cause the dilution of oxygen and affect the normal breathing of people. High concentrations of nitrogen can cause asphyxiation. Contact of liquid nitrogen with skin can cause frostbite.
Cylinder:
Availability:
Quantity:
  • 7727-37-9

  • OEM/ODM

Technical Indicators

Components/Impurities

Liquid nitrogen/5.0N

Pure nitrogen /4.5N

High purity nitrogen/5.0N

Ultrapure nitrogen/6.0N

Nitrogen content

99.999%

99.995%

99.999%

99.9999%

Argon

-

-

-

≤2.0ppm

Hydrogen H2

≤1.0ppm

≤15ppm

≤1.0ppm

≤0.1ppm

Oxygen O2

≤3.0ppm

≤50ppm

≤3.0ppm

≤0.1ppm

Carbon monoxide CO

≤1.0ppm

≤5.0ppm

≤1.0ppm

≤0.1ppm

Carbon dioxide CO2

≤2.0ppm

≤10ppm

≤1.0ppm

≤0.1ppm

Methane CH4

≤1.0ppm

≤5.0ppm

≤1.0ppm

≤0.1ppm

Water H2O

-

≤15ppm

≤3.0ppm

≤0.5ppm


The Packing

Type of Cylinder

Gas Pressure

Gas volume

High purity carbon dioxide

50L cylinder

19.5MPa

10000L

11.5KG

40L cylinder

13.5MPa

5400L

6.2KG

10L cylinder

10MPa

1000L

1.1KG

4L cylinder

10MPa

400L

0.5KG

Dewar

1.6~3.4MPa

108~126m3

124-145KG

Tank

0.8MPa


Above 20T


Transport information

Transport information

Chemical symbol

N2

GAS No.

7727-37-9

DOT Shipping Class

non-combustible gas

DOT tags

non-combustible gas

Canadian Shipping Classification

2.2

Substance Identification (S) No.

1066

UN No.

UN 1066

Main Hazards

high pressure compression, asphyxiation

Toxicity (TLV)

asphyxia

Explosive Limits (Toxic)

non-combustible gas

Smell

none


Physical properties

Physical properties

Chemical name

N2

Molecular weight

28.0134

Melting point (triple point, 12.53kPa)

-210.0℃

Boiling point (101.325kPa)

-195.8℃

Liquid Density (-210℃, 12.534kPa)

869.5kg/m3

Relative density (gas, air=1, 20℃, 101.325KPa)

0.967

Specific volume (21.1℃, 101.325kPa)

861.5m3/kg

Gas-liquid volume ratio (15℃. 100kPa)

691L/L

Critical temperature

-146.9℃

Critical pressure

3400kPa

Critical density

311kg/m3

Compression factor

Temperature(K)/Pressure

100kPa 1000kPa 10000kPa

300K

0.9998 0.9983 1.0052

350K

1.0001 1.0011 1.0271

Heat of fusion (-210.002℃, 12.53kPa)

25.75kJ/kg

Heat of vaporization (-195.803℃, 101.325kPa)

198.70kJ/kg

Specific heat capacity (300k, 100kPa)

Cp=1040.8J/(kg•K) Cv=742.74J/(kg•K)

Specific heat ratio (gas, 16.8℃. 101.325kPa)

Cp/Cv=1.407

Vapor pressure (-200℃)

60kPa

(-180℃)

465kPa

(-150℃)

2950kPa

Viscosity (280k, 100kPa)

0.01691mPa • S

Surface tension (70k)

10.53mN/m

Thermal conductivity (280k, 100kPa)

0.02447w/(m•K)

Refractive index (gas, 0℃, 101.325kPa)

1.00029729

(Liquid, 77.12k, 101.325kPa)

1.19844

Toxicity Level (Liquid Oxygen)

3

Flammability Class (Liquid Oxygen)

0

Explosiveness Level (Liquid Oxygen)

0


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