بایگانی‌های Gas - Page 2 of 4 - dawnbreeze

Ammonia

What is Ammonia?

  • Ammonia is a combination of the two gaseous elements hydrogen and nitrogen.
  • The bond ratio of three hydrogen molecules to one nitrogen molecule is formed.
  • The chemical formula of ammonia Is NH3.

Ammonia storage and transport tanks:

  • Moisture-free (dry) ammonia is available in the form of pressurized gas in cylinders, cryogenic tanks, and non -cryogenic tanks.
  • Also, dry ammonia is stored in bulk tanks with a large volume and installed on the ground.
  • The large storage tanks, which are not usually installed on the ground, have very low pressure and have a cooling cycle as well as thermal insulation.

Ammonia grades:

Acceptable grades used in various industries are:

%99.98

Technical grade

 %99.5

Commercial grade
%99.995

Metallurgical grade

 %99.7

Agricultural grade
%99.999

Semiconductor Industry Grade

 %99.95

Refrigeration grade

Almost %80 of the total ammonia produced is used in the fertilizer industry.

Safety precautions

  1. People with chronic illnesses or long-term allergies should not be hired where there is ammonia.
  2. Ammonia ions are in fact a phenomenon of the biological system, yet ammonia in the atmosphere has a very stimulating effect on the mucous membranes of the eyes, nose, throat, and lungs.
  3. Too much ammonia can have destructive effects on tissues.
  4. Too much ammonia can lead to laryngeal and bronchial problems.
  5. Too much ammonia can cause edema and Obstruction of breathing.

Compatible and incompatible materials:

  • Ammonia doesn’t affect most metals without moisture.
  • When ammonia combines with water vapor; Affects copper, zinc, and their alloys.
  • The use of copper, zinc, silver, and their alloys in the manufacture of ammonia tanks is prohibited.

Physical properties

Molecular Weight 17.031
steam pressure 786.7 K. Pa @ 21.1 0C
Gas density 0.771 Kg/m3 @ 0 0C and 1 atm
Latent heat evaporates at boiling point and 1atm 1370 KJ/Kg
Specific heat capacity at temperature

15 0C

at 1atm

 CP=2.19 KJ/Kg.0C

CV=1.673 KJ/Kg.0C

CP/CV=1.3096
Critical temperature 133.00C
Critical pressure 11425 K.Pa(a)
Solubility in water %47 vol.(gas)/Vol.(Water) at 0 0C and 1 atm
Explosion / ignition range in air corrosive gas

Compatibility with materials

Material Compatibility of Ammonia

 

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

Dangerous products classification:

Dangerous Products Transport Information:

 

IATA IMDG DOT
UN 1005 UN 1005 UN 1005 UN NUMBER
Ammonia, anhydrous Ammonia, anhydrous Ammonia, anhydrous UN SHIPPING NAME
2.4 , 9.2 2.4 , 9.2 2.4 , 9.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Neon

What is Neon?

  • Neon is a chemical element with the symbol Ne and the atomic number 10.
  • This element Can be found in nature as a colorless gas.
  • Electric discharge emits a reddish-neon color, which shows that why neon lamps have a wide range of advertising uses.
  • Neon has 40 times the cooling properties of liquid helium and 3 times the liquid hydrogen, and it’s also used in the refrigeration industry.
  • Although neon is an inert gas in many practical cases, in combination with fluorine in the laboratory, it produces interesting colored compounds.
  • The above action suggests that the neon compound exists naturally; However, the evidence says that this hypothesis may be true or may not be true.
  • Neon is a very dangerous and deadly gas.
  • This gas can cause severe suffocation.

Physical properties

Molecular Weight 20.183
steam pressure 100 K. Pa @ -246.15 0C
Gas density 0.83536 Kg/m3 @ 21.1 0C and 1 atm
Latent heat of vaporization at boiling point (triple point) 16.6 KJ/Kg
Special heat capacity CP=1.05 KJ/Kg.0C

CV=0.636 KJ/Kg.0C

CP/CV=1.64
Critical temperature -228.8 0C
Critical pressure 2654 KPa(a)
Solubility in water 0.0105 vol.(gas)/Vol.(Water) at 200C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of Neon

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 Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating

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

Dangerous Products classification:

Dangerous Products Transport Information:

(For refrigerated liquid)   :UN 1913

IATA IMDG DOT
UN 1065 UN 1065 UN 1065 UN NUMBER
Neon, compressed Neon, compressed Neon, compressed UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Sulfur hexafluoride

What is sulfur hexafluoride?

  • Sulfur hexafluoride is a colorless, odorless, non-toxic, non-flammable gas that has electrical insulation properties and acts as an insulator in electrical equipment.
  • SF6(Sulfur hexafluoride) At atmospheric pressure 1, can deform directly from the solid phase to the gaseous phase.
  • SF6 One of the most stable chemical compounds in the presence of many substances، It dissolves very little in water and oil and does not change pH.

Available grades:

%99.999-% 99.99 – %99.9

Tanks and maintenance:

  • SF6 can be charged and carried in cylinders and pressure vessels with working pressure more than 68 times.
  • The maximum charge weight of the cylinder is %120 of the weight of the cylinder water intake.

Compatible and incompatible materials:

  • SF6 In contrast with all metals is non-corrosive.
  • In the vicinity of the electrical discharge may decompose somewhat.
  • Some compounds resulting from the breakdown of SF6 molecules? , They Might be corrosive.
  • Corrosion caused by the breakdown of SF6 molecules may be due to the presence of moisture or high temperatures.
  • SF6 Decomposes very little in the presence of some special metals, This effect occurs in the presence of silicon and carbon steels.
  • Decomposition at high temperatures does not occur in the presence of aluminum, copper, brass, and silver.
  • Most washers used in SF6 systems Made of Teflon, neoprene, and natural latex

Physical properties

Molecular Weight 146.05
steam pressure 2156 K. Pa @ 21.1 0C
Gas density 6.17 Kg/m3 @ 20 0C and 1 atm
Latent heat of vaporization at temperature 200C  63.1 KJ/Kg
Special heat capacity CP=0.6790 KJ/Kg.0C

CV=0.6190 KJ/Kg.0C

CP/CV=1.097
Critical temperature 45.560C
Critical pressure 3753 KPa(a)
Solubility in water 0.001 vol.(gas)/Vol.(Water) at 25.0 0C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of SULPHUR HEXAFLUORIDE

 

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

Updating

Kalrez
GAS Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating

 

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

Dangerous Products classification:

Dangerous Products Transport Information:

 

IATA IMDG DOT
UN 1080
 UN 1080 UN 1080 UN NUMBER
SULPHUR HEXAFLUORIDE SULPHUR HEXAFLUORIDE SULPHUR HEXAFLUORIDE UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Hydrogen sulfide

What is hydrogen sulfide?

  • Hydrogen sulfide gas has a very strong odor similar to rotten eggs.
  • Hydrogen sulfide, or sulfide ion, acts as a catalyst in the absorption of hydrogen on the surface of metals, leading to the rapid brittleness of metals.
  • In areas where the air is not flowing, leaking very small amounts of hydrogen sulfide can be very dangerous.
  • If hydrogen sulfide comes in contact with any part of the body or eyes, be sure to rinse the area with plenty of clean water for 15 minutes.

Available grades:

  • Hydrogen sulfide is present only in the liquid phase with a purity of %99.5 and %99.99.

Tanks and maintenance:

  • A group of cylinders is suitable for charging hydrogen sulfide.
  • The maximum weight of the cylinder charge is %62.5 of the weight of the cylinder intake.
  • Hydrogen sulfide is also transported and stored in special tanks in bulk.

Compatible and incompatible materials:

  1. Anhydrous hydrogen sulfide under pressure and ambient temperature are compatible with carbon steel and ferrous iron.
  2. Hydrogen sulfide itself isn’t corrosive to Steel.
  3. Substances such as impurities, pH, specific abrasion conditions, or mechanical and thermal stresses on metals can cause severe corrosion.
  4. Teflon, VITON, and KEL-F are polymers compatible with hydrogen sulfide.

Physical properties

Molecular Weight 34.08
steam pressure 1579 K. Pa @ 15.6 0C
Gas density 26.55 Kg/m3 @ 15.6 0C and 1 atm
Latent heat of vaporization at 15.6 C 444.5 KJ/Kg
Specific heat capacity at the temperature of

15.00C  and 1 atm

 CP=1.014 KJ/Kg.0C

CV=0.7643 KJ/Kg.0C

CP/CV=1.327
Critical temperature  100.5 0C
Critical pressure 9008 KPa(a)
Solubility in water 0.0292 vol.(gas)/Vol.(Water) at 200C and 1 atm
Boiling point -103.8  0C
Explosion / ignition range in air  Flammable Gas/Poison Gas

Compatibility with materials

Material Compatibility of Hydrogen sulfide

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

Dangerous Products classification:

Dangerous Products Transport Information:

IATA IMDG DOT
UN 1053 UN 1053 UN 1053 UN NUMBER
Hydrogen sulfide Hydrogen sulfide Hydrogen sulfide UN SHIPPING NAME
2.1/2.3 2.1/2.3 2.1/2.3 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Sulfur Dioxid

What is Sulfur Dioxide?

  • Sulfur dioxide is a combination of oxygen and sulfur.
  • In normal conditions, at normal temperatures and pressures, sulfur dioxide is a colorless gas with a very nasty odor that can cool and compress and turn into a colorless liquid.
  • This gas at a pressure of 1 atmosphere and Its boils at the temperature of  10 C
  • This gas at temperature  -9.75 C Freezes.
  • Liquid sulfur dioxide is heavier than water and in the gas phase, it weighs twice as much as air.
  • It is also non-flammable in any of the liquid and gaseous phases and is stable in a chemical bond.
  • This gas becomes very corrosive to metals in the presence of a very small amount of water, sulfur dioxide, except in the presence of lead, stainless steel 316, and special alloys.
  • The Special glass and plastics are resistant to impure (hydrated) sulfur dioxide.

Available grades:

% 9.99 in the liquid phase

Tanks and maintenance:

  • Sulfur dioxide can be charged in pressurized cylinders.
  • This gas can also be charged and transported in tons of tanks, portable flasks, and cargo tanks.

Compatible and incompatible materials:

  1. In a Short temperature range, carbon steels can be exposed to sulfur dioxide without water.
  2. Sulfur dioxide has moisture, in the presence of corrosive carbon steel.

Physical properties

 

Molecular Weight 64.06
steam pressure 49.1 K. Pa @ 21.1 0C
Gas density 1.261 Kg/m3 @ 0 0C and 1 atm
The latent heat of evaporation at the boiling point  361.5 KJ/Kg
Specific heat capacity at a temperature of 25.0  and 1 atm

CP=0.622 KJ/Kg.0C

CV=0.485 KJ/Kg.0C

CP/CV=1.28
Critical temperature 157.4 0C
Critical pressure 7880 KPa(a)
Solubility in water 22.97 vol.(gas)/Vol.(Water) at 00C and 1 atm
Boiling point -10.0  0C
Explosion / ignition range in air Poison Gas

 

 

Compatibility with materials

Material Compatibility of Sulfur dioxide

 

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

Updating

Kalrez
GAS Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating

 

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 1079 UN 1079 UN 1079 UN NUMBER
Sulfur dioxide Sulfur dioxide Sulfur dioxide UN SHIPPING NAME
2.3 2.3 2.3 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Xenon

What is Xenon?

  • Xenon is the number 54 element of the periodic table.
  • This element is odorless, whether in gaseous or colorless liquid.
  • This gas has a density of 5,8671 grams per liter (air = 1.29) and has a boiling point Is -108. 12 C. and melting point is 106.9C.
  • This gas is non-combustible, non-toxic, and chemically inert.
  • Fractional distillation of liquid air is called xenon.

Physical properties

Molecular Weight 131.3
steam pressure 100 K. Pa @ -108.15 0C
Gas density 5.472 Kg/m3 @ 21.1 0C and 1 atm
Latent heat of vaporization at boiling point (triple point) 17.6 KJ/Kg
Special heat capacity CP=0.269 KJ/Kg.0C

CV=0.096 KJ/Kg.0C

CP/CV=1.667
Critical temperature 16.60C
Critical pressure 5840 KPa(a)
Solubility in water 0.108 vol.(gas)/Vol.(Water) at 20 0C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of Xenon

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

Safety

Classification of dangerous Products:

Dangerous Products Transport Information:

(For refrigerated liquid)   :UN 2591

IATA IMDG DOT
UN 2036 UN 2036 UN 2036 UN NUMBER
Xenon, compressed Xenon, compressed Xenon, compressed UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Krypton

What is Krypton?

  • Krypton is a chemical element with the symbol of Kr
  • It has an atomic number of 36 and an atomic mass of 83.80, which has six stable isotopes and several radioactive isotopes.
  • Krypton is a noble gas Which has ranks fourth in the periodic table.
  • This colorless, odorless gas is 1.18 times heavier than air.
  • Krypton also combines with fluorine at the temperature of liquid nitrogen due to electrical discharge.

 

 

 

 

 

 

 

 

Physical properties

Molecular Weight 83.80
steam pressure 1 K. Pa @ -153.15 0C
Gas density 3.479 Kg/m3 @ 21.1 0C and 1 atm
Latent heat of vaporization at boiling point (triple point)  19.57 KJ/Kg
Special heat capacity CP=0.251 KJ/Kg.0C

CV=0.146 KJ/Kg.0C

CP/CV=1.69
Critical temperature 16.60C
Critical pressure 5840 KPa(a)
Solubility in water 0.0594 vol.(gas)/Vol.(Water) at 200C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of Krypton

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

Safety

Classification of dangerous Products:

Dangerous Products Transport Information:

(For refrigerated liquid)   :UN 1970

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

Argon

What is Argon?

  • Argon is one of the chemical elements denoted by Ar and It has an atomic mass of 18.
  • The third-largest gas in the atmosphere is argon (about %0.934 of air is argon).
  • Almost all of the argon in the air is the 40-argon isotope, while in the major argon space it is the 36-argon Isotope.

Other Information About Argon:

  • Argon belongs to the family of rare and inert gases of the periodic table.
  • Argon is a colorless, odorless, tasteless, and non-toxic gas that is completely inert and has no known chemical composition at room temperature, and it’s slightly soluble in water.

Physical properties

Molecular Weight 39.95
steam pressure 100 K. Pa @ -186.15 0C
Gas density 1.650 Kg/m3 @ 21.1 0C and 1 atm
The latent heat of evaporation at the boiling point 162.3 KJ/Kg
Special heat capacity CP=0.523 KJ/Kg.0C

CV=0.314 KJ/Kg.0C

CP/CV=1.67
Critical temperature -122.3 0C
Critical pressure 4906 KPa(a)
Solubility in water 0.056 vol.(gas)/Vol.(Water) at 00C and 1 atm
Explosion / ignition range in air Non Flammable

Compatibility with materials

Material Compatibility of Argon

METALS PLASTICS ELASTOMERS
ALUMINUM CARBON STEEL CAST/DUCTILE IRON 304 STAINLESS STEEL 316 STAINLESS STEEL CUPPER BRASS POLY ETHYLENE POLY PROPYLENE NYLON PTFE – TEFLON PVDF PVC BUNA-NATURAL RUBBER NBR EPR-EPDM VITON
GAS A A A A A A A A A A A A A A A A A
Liquid D D D B C D C D D D C D D D D D D

A: EXCELLENT
B: GOOD
C: FAIR TO POOR
D: NOT RECOMMENDED

Safty

Classification of dangerous Products:

Dangerous Products Transport Information:

IATA IMDG DOT
UN 1006 UN 1006 UN 1006 UN NUMBER
ARGON , COMPRESSED ARGON , COMPRESSED ARGON , COMPRESSED UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Chlorine

What is chlorine?

  • Chlorine is a non-flammable and can be find in light greenish-yellow gas
  • Chlorine has a nasty odor and is 2.5 times heavier than air, and it is very irritating if the gas is inhaled.
  • Liquid chlorine Has amber color , one and a half times heavier than water.
    Chlorine is non-flammable in both gaseous and liquid forms. However, chlorine, like oxygen, can help burn matter. Many organic matter React chemically with chlorine.
  • Chlorine dissolves in very small amounts in water, when it reacts with pure water, it forms compounds of hydrochloric acid and hypochlorous acid (ingredients of bleaches, disinfectants, deodorants, isoxide oxides).

Available grades:

%99.999-% 99.99 – %99.9

Tanks and maintenance:

  • The Maximum allowable capacity to fill chlorine tanks %125 by weight of water at a temperature of 15.6 C0.
  • Chlorine is stored and transported in cylinders with a storage volume of less than 68 kg and also tanks with a capacity of 1000-900 kg called tank tons.

Compatible and incompatible materials:

  • At normal temperatures, chlorine doesn’t corrode steel without moisture (whether liquid or gas), and if there is moisture, there will be a lot of corrosion due to the formation of hydrochloric acid and hypochlorous acid.
  • Therefore, It should be care to keep chlorine away from moisture.
  • Containers, pipes and valves should be closed so that moisture in the atmosphere stays out of the system and does not mix with chlorine.

 

Physical properties

Molecular Weight 28.01
steam pressure 100 K. Pa @ -196.15 0C
Gas density 1.153 Kg/m3 @ 21.1 0C and 1 atm
The latent heat of evaporation at the boiling point  199.1 KJ/Kg
Special heat capacity CP=1.04 KJ/Kg.0C

CV=741 KJ/Kg.0C

CP/CV=1.307
Critical temperature -146.90C
Critical pressure 3399 KPa(a)
Solubility in water 0.019 vol.(gas)/Vol.(Water) at 200C and 1 atm
Explosion / ignition range in air  Flammable Gas

Compatibility with materials

Material Compatibility of Nitrogen

METALS PLASTICS ELASTOMERS

Brass

CARBON STEEL

StainLess Steel

Alumium

Zinc

CoPPER

Monel

Kel-F

Teflon

Tefzel

Kynar

PVC

Polycarbonate

 Viton® Buna-N Neoprene Polyurethane

Updating

Kalrez
GAS Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating Updating

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 1066
 UN 1066 UN 1066 UN NUMBER
Nitrogen, compressed Nitrogen, compressed Nitrogen, compressed UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

Oxygen

What is oxygen?

  • Oxygen is a colorless, odorless, tasteless, gaseous element that supports human life, and It’s combustible, It makes 1/5 of the atmosphere.
  • (%20.95 by volume of the atmosphere and %32.5 by weight of atmosphere) Oxygen at low temperature(0 -184 C), clear, the very light blue liquid that is slightly heavier than water
  • All elements, except neutral gases, combine with oxygen and create The oxides form. Oxygen is non-flammable but greatly intensifies the combustion process

Available oxygen grades:

% 99.9999,% 99.9995,% 99.999,% 99.995,% 99.6

Tanks and maintenance:

  • Oxygen can be charged in the gas form and under pressure in cylinders as well as in trailer tubes.
  • Liquid oxygen is transported and stored in portable flasks and cryogenic tanks.

Compatible and incompatible materials:

  • Gaseous oxygen is non-corrosive and can be used in systems made of ordinary metals. At the temperature of oxygen liquefaction, carbon steels and steel alloys lose their malleability and they aren’t suitable for exposure to oxygen.
  • Metals and alloys are suitable for exposure to oxygen at liquid temperatures include: stainless steel (eg 316,304), nickel and chromium alloys, nickel, Monel 400, copper brass, bronze, and austenitic aluminum alloys.
  • Oxygen contact systems and piping must be free of any combustible materials, grease or oil.

Physical properties

Molecular Weight 31.9988
steam pressure 100 K. Pa @ -183.15 0C
Gas density 1.326 Kg/m3 @ 21.1 0C and 1 atm
The latent heat of evaporation at the boiling point 213 KJ/Kg
Special heat capacity CP=0.9192 KJ/Kg.0C

CV=0.6577 KJ/Kg.0C

CP/CV=1.40
Critical temperature -118.60C
Critical pressure 5043 KPa(a)
Ability to dissolve in water 0.0489 vol.(gas)/Vol.(Water) at 00C and 1 atm
Explosion / ignition range in air Non Flammable

Compatibility with materials

Material Compatibility of OXYGEN

 

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 C O C S S S O O O O O C U O O O

 

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 1072 UN 1072 UN 1072 UN NUMBER
Oxygen, compressed Oxygen, compressed Oxygen, compressed UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

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