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Oxygen Gas Cylinder O2

Oxygen is a colorless, odorless and tasteless gas at normal temperature and pressure, and turns blue after liquefaction, and contains about 21% in air. Oxygen itself does not burn, but it can help it. Oxygen is chemically active and can emit light and heat with various elements, that is, combustion. Long-term exposure to high concentrations of oxygen can cause oxygen enrichment poisoning. Liquid oxygen in contact with the skin can cause frostbite.
Cylinder:
Availability:
Quantity:
  • 7782-44-7

  • OEM/ODM

Technical Indicators

Components/Impurities

Oxygen/2.5N

Oxygen/4.5N

Oxygen/5.0N

Oxygen/6.0N

Oxygen content

99.5%

99.995%

99.999%

99.9999%

Hydrogen H2

-

≤1.0ppm

≤0.5ppm

≤0.1ppm

Argon

-

≤10ppm

≤2.0ppm

≤0.2ppm

Nitrogen N2

-

≤20ppm

≤5.0ppm

≤0.1ppm

Carbon dioxide CO2

-

≤1.0ppm

≤0.5ppm

≤0.1ppm

Methane CH4

-

≤2.0ppm

≤0.5ppm

≤0.1ppm

Water H2O

No free water

≤3.0ppm

≤2.0ppm

≤0.5ppm


The Packing

Type of cylinder

Gas pressure

Gas volume

High purity carbon dioxide

50L cylinder

19.5MPa

10000L

13KG

40L cylinder

13.5MPa

5400L

7KG

10L cylinder

10MPa

1000L

1.3KG

4L cylinder

10MPa

400L

0.5KG

Dewar

1.6~3.4MPa

133~155m3

176-206KG

tank car

0.8MPa


Above 20T

Cylinder interface: QF-2, PX-32 external thread/internal thread, thread outlet G5/8 (outer diameter 22.911, number of threads 14 threads/inch, thread pitch 1.814 mm, thread height 1.162, minor diameter 20.587)


Transport information

Transport information

Chemical symbol

O2

GAS No.

7782-44-7

DOT Shipping Class

non-combustible gas

DOT tags

Oxidizer

Canadian Shipping Classification

2.2 (5.1)

Substance Identification (S) No.

1072

UN No.

UN 1072

Main hazards

High pressure compression and combustion

Toxicity (TLV)

uncertain

Explosive Limits (Toxic)

Strong oxidants

Smell

none


Physical properties

Physical properties

Chemical name

O2

Molecular weight

32.0

Melting point (101.325kPa)

-218.8℃

Boiling point (101.325kPa)

-183.0℃

Liquid Density (90.18K, 101.325kPa)

1141kg/m3

Gas density (0℃, 101.325kPa)

1.4289kg/m3

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

1.105

Specific volume (21.1℃, 101.325kPa)

0.7554m3/kg

Gas-liquid volume ratio (15℃. 100kPa)

854L/L

Critical temperature

-118.6℃

Critical pressure

5043kPa

Critical density

436kg/m3

Compression factor

Temperature(K)/Pressure

100kPa 1000kPa 10000kPa 50000kPa

300K

0.9994 0.93941 0.9542 1.1572

500K

0.9998 0.9979 0.9870 1.1722

Heat of fusion (-218.799℃, 0.152kPa)

13.91kJ/kg

Heat of vaporization (-182.97℃, 101.325kPa)

212.98kJ/kg

Specific heat capacity (300k, 100kPa)

Cp=920.26J/(kg • K)

Specific heat ratio (gas, 25℃. 101.325kPa)

Cp/Cv=1.414

Vapor pressure (-200℃)

10.7kPa

(-160℃)

640kPa

(-120℃)

4700kPa

Viscosity (300k, 100kPa)

0.02072mPa • S

Surface tension (70℃)

18.3mN/m

Thermal conductivity (300k, 100kPa)

0.02625w/(m•K)

Refractive index (gas, 0℃, 101.325kPa)

1.000266

(Liquid, 25℃, 101.325kPa)

1.0002712

Toxicity Level (Liquid Oxygen)

3

Flammability Class (Liquid Oxygen)

0

Explosiveness Level (Liquid Oxygen)

0


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