نسیم صبح فردا

What is Nitrous Oxide?

  • Nitrous oxide at room temperature and atmospheric pressure one have a colorless gas with a sweet odor and taste.
  • Nitrous oxide is not flammable but is involved in combustion.
  • This gas decomposes into nitrogen and oxygen at high temperatures.
  • The decomposition process in the absence of catalysts at temperatures below 649 0C is negligible.
  • Nitrous oxide is slightly soluble in water, alcohol, and oils.
  • Nitrous oxide is most commonly used as an anesthetic gas.

Available grades:

% 99.5-% 99.998-% 99.999-% 99.9999


Tanks and maintenance:

  • Nitrous oxide can be stored and transported in all cylinders and tanks under the crust.

Compatible and incompatible materials:

  1. Nitrous oxide is non-corrosive.
  2. This gas can be in the vicinity of many common metals.
  3. Due to the oxidizing property (ability to combine with oxygen) in nitrous oxide, all equipment used in the presence of nitrous oxide, especially at high pressure must be free of any combustible materials such as oil, grease, and other materials.
  4. Nitrous oxide can cause some elastomers to swell.
Molecular Weight 44.0128
steam pressure  5150K. Pa @ 20 0C
Gas density  1.877Kg/m3 @ 15 0C and 1 atm
Latent heat evaporates at boiling point and 1atm 376.1 KJ/Kg
Specific heat capacity at temperature

25 0C

At 1atm

CP=0.866 KJ/Kg.0C

CV=0.665 KJ/Kg.0C

CP/CV=1.303

Critical temperature 360C
Critical pressure 1052 K.Pa
Solubility in water  1.3vol.(gas)/Vol.(Water) at 0 0C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

 

Material Compatibility of Nitrous oxide

 

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

Viton® Buna-N Neoprene Polyurethane

O

Kalrez

GAS

 

S – Satisfactory for use with the intended gas
C – Conditional. May be incompatible under some circumstances or conditions Contact your Praxair representative for additional information
U – Unsatisfactory for use with the intended gas
I – Insufficient data available to determine compatibility with the intended gas
O – All nonmetalic, even those considered compatible, may be ignitable in oxygen enriched environments or in other oxidizing gases. Successful
use depends upon oxygen purity, pressure, temperature, cleanliness and elimination of ignition mechanisms. Please contact your Praxair
Representative for additional information

Classification of dangerous products:

Dangerous ProductsTransport Information:

(For refrigerated liquid)   :UN 2201

IATA IMDG DOT
UN 1070 UN 1070 UN 1070 UN NUMBER
Nitrous oxide Nitrous oxide Nitrous oxide UN SHIPPING NAME
2.2/5.1 2.2/5.1 2.2/5.1 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD
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