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Nitrogen Dioxide Gas NO2

Nitrogen dioxide is a corrosive yellow-brown poisonous gas with a suffocating irritating odor. At normal temperature and pressure it is actually an equilibrium mixture of NO2 and N2O4, which are interconverted with temperature and pressure. Nitrogen dioxide itself does not burn, but it is a strong oxidant that can corrode copper, copper alloys, and most plastics.
Availability:
Quantity:
  • 10102-44-0

  • OEM/ODM

Technical Indicators

Components/Impurities

nitrogen dioxide/2.5N

Nitrogen dioxide content NO2

995%

Water H2O

﹤2500ppm

Nitric acid HNO3

﹤2500ppm


The Packing

Type of cylinder

Gas pressure

Gas volume

Net weight of gas

40L cylinder

0.1MPa

-

20~40kg

10L cylinder

0.1MPa

-

10kg

4L cylinder

0.1MPa

-

2kg

Cylinder interface: CGA330 or QF-21A stainless steel cylinder valve


Transport information

Transportation information

Chemical symbol

NO2

GAS No.

10102-44-0

Levels of danger

2.3

DOT tags

Toxic gas, oxidant

Canadian Shipping Classification

Toxic gas, oxidant

Substance Identification (S) No.

1067

UN No.

UN 1067

Main hazards

poisonous

Toxicity (TLV)

5.6mg/m3


physical properties

Physical properties

Chemical name

NO2

Molar mass

46.01

Gas density (21.1℃, 101.325kPa):

3.40kg/m3

Relative density (air=1, 21.1℃, 101.325kPa):

2.62

Gas-liquid volume ratio (21.1℃, 100kPa)

424L/L

Critical temperature

158.2℃

Critical pressure

10132.5kPa

Critical density

557kg/m3

Compression factor

Temperature(℃)/Pressure

10kPa 00kPa 100kPa 200kPa

15℃

0.998 0.995

50℃

0.999 0.996 0.992 0985

Heat of fusion (-11.2℃, 18.6kPa)

159.5kJ/kg

Heat of vaporization (21.2℃, 101.325kPa)

430.4kJ/kg

Specific heat capacity (gas, 27-100℃, 101.325kPa)

Cp=831.5J/(kg • K)

Vapor pressure (-20℃)

11kPa

(0℃)

37kPa

(20℃)

102kPa

Viscosity (101.325kPa, 25℃)

0.0132mPa • S

Surface tension (19.8℃)

26.6mM/m

Thermal conductivity (101.325kPa, 0℃)

0.16747W/(m•K)

Refractive index (gas, 0℃, 101.325Pa)

1.000503


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