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Liquid Helium



Liquid Helium, also known as Helium-4 and Helium (cryogenic liquid), is a colorless, odorless, cryogenic liquid. Liquid Helium can cause dizziness and drowsiness, severe frostbite and rapid suffocation. Caution should be used as this is an extremely cold liquid under pressure. For more information visit our MSDS database.


Transportation Information

US Shipping Name Hazard Class Label UN Number
Helium, Refrigerated Liquid 2.2 Nonflammable Gas 1963
Formula MSDS CAS Number General Description
He 4600 7440 - 59 - 7 Colorless, odorless, nonflammable cryogenic liquid and gas.


Product and Package Information

Part Number Product Specifications Connection CGA Container Style Content Gross Weight Relief Setting psig
HE 5.0 99.999%
O2 < 1 ppm
H2O < 2 ppm
CO2 < 1 ppm
CO < 1 ppm
THC < 0.1 ppm
N2 < 5 ppm
H2 < 1 ppm
Ne < 2 ppm
Coupling for 3/8" or 1/2" transfer tube LT30
30 L
60 L
100 L
129 LB
209 LB
249 LB
Coupling for 5/8" or 3/4" transfer tube LT250
250 L
500 L
526 LB
824 LB

All liquid helium containers are of non-magnetic, stainless steel construction.
LT250 and LT500 containers have electric automatic pressure building units.


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