بایگانی‌های Krypton temp - dawnbreeze

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.

 

 

 

 

 

 

 

 


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

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

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

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