بایگانی‌های Un number - dawnbreeze

Air

What is air?

  • Air is the Earth’s natural atmosphere.
  • Air-gas is non-flammable, colorless, odorless, and non-corrosive, and composed.
  • Air is a mixture of gases, such as argon, water vapor, a small amount of CO2, Oxygen, nitrogen, and small amounts of various other gases.
  • In the industry, artificial air is produced by combining oxygen and pure nitrogen in the form of 19.5 to 23.5% auxin with nitrogen balance.
  • The air in the liquid phase, a clear liquid with a blue tint and in the presence of CO2 In it, a little milky color.

Available grades:

  • The amount of humidity in the air varies from one height to another and from region to region.
  • In the zero or synthetic air industry, it is deliberately produced from a combination of pure oxygen and pure nitrogen, so it is expressed by the purity of the components used in production.
  • For example, the 5.0N grade of air, which represents the air produced from a combination of 19.5 to 23.5% of 5.0N grade oxygen with 5.0N nitrogen balance.

storage and transport tanks:

  • Compressed air is stored and transported in pressurized cylinders with different pressures and with different volumes.

Compatible and incompatible materials:

  1. Dry air is non-corrosive.
  2. The equipment in contact with it can be made of any ordinary metal.
  3. Gaseous air is usually carried in pressurized cylinders, tubes, and tube trailers.

 

 

Physical properties

Molecular Weight 28.975
steam pressure 2484 K. Pa @ -150 0C
Gas density 1.2 Kg/m3 @ 21.1 0C and 1 atm
The latent heat of evaporation at the boiling point 205 KJ/Kg
Special heat capacity CP=1.01 KJ/Kg.0C

CV=0.720 KJ/Kg.0C

CP/CV=1.40
Critical temperature -140.60C
Critical pressure 3771 KPa(a)
Solubility in water 0.0292 vol.(gas)/Vol.(Water) at 00C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of Air

 

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

Safty

Classification of dangerous Products:

Dangerous Products Transport Information:

 

IATA IMDG DOT
UN 1002 UN 1002 UN 1002 UN NUMBER
Air, compressed Air, compressed Air, compressed UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Nitrous oxide

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.

Physical properties

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

 

Compatibility with materials

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

Safty

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

کلیه ی حقوق این وبسایت متعلق به شرکت نسیم صبح فردا می باشد

×

Welcome to Nasim Sobh Farda

Thank you for choosing Nasim Sobh Farda Company

To order a product price inquiry or more information you can, by clicking on the Supporter and send a message to Him , they will respond to your message as soon as possible.

Thanks for your attention

Powered by Nasim Sobh Farda

× ? How can I help you