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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

Helium

What is Helium?

  • Helium is a monoatomic molecule. Helium is the lightest element after hydrogen and has the smallest molecular cross section among gases.
  • It is one of the rare gases in the atmosphere. It is completely neutral in chemical reactions. The thermal conductivity of helium over other rare gases makes helium superior to other rare gases.
  • Helium is non-flammable and only slightly soluble in water

Available grades:

%99.9999 -%99.9995 -%99.999 -%99.998

Tanks and maintenance:

  • Helium gas can be transported and stored in cylinders – tanks and trailer tubes in accordance with the DOT standard and TC rules.
  • Liquid helium transported as cryogenic fluid in insulated (cryogenic) cylinders and cryogenic tanks

Compatible and incompatible materials:

  • Helium gas is a neutral and non-corrosive , Also its compatible with all common metals.
  • In the presence of liquid helium, carbon steels and many alloys lose their conductivity.
  • Liquid metals compatible with helium include :
    stainless steel 8-18, austenitized nickel-chromium alloys, copper, Monel, brass and aluminum.

Physical properties

Molecular Weight 4.00
steam pressure 100 K. Pa @ -268.94 0C
Gas density 0.0165 Kg/m3 @ 21.1 0C and 1 atm
Latent heat of vaporization at the boiling point 20.28 KJ/Kg
Special heat capacity CP=5.19 KJ/Kg.0C

CV=3.121 KJ/Kg.0C

CP/CV=1.66
Critical Temperature -268.90C
Critical Pressure 227 KPa(a)
Ability to dissolve in water 0.0094 vol.(gas)/Vol.(Water) at 00C and 1 atm
Explosion / ignition range in air  Non-Flammable Gas

Compatibility with materials

Material Compatibility of Helium

 

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 1046
 UN 1046 UN 1046 UN NUMBER
Helium, compressed Helium, compressed Helium, compressed UN SHIPPING NAME
2.2 2.2 2.2 TRANSPORT HAZARD CLASS
NO NO NO ENVIRONMENTAL HAZARD

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