99.999%-99.9999% High Purity Helium Gas

We are suppling varieties of inorganic high-purity gases, such as nitrogen, argon, hydrogen, oxygen, carbon monoxide, etc.

Helium gas

Nature: colorless and odorless

Melting/Freezing Point:   -272.1°C                   Boiling Point :  -268.9°C

   Critical Temperature:   -267.9°C              Critical Pressure:  0.23MPa

Helium was initially used in dirigible-balloons.

Nowdays, is widely used in Electronic industry, and chemical industry.

Name	MF	Purity	Impurity content (ppm)
Helium	He	99.999%	O2≤1, H2O≤2, H2≤1, HC≤3
		99.9999%	H2O≤0.2, O2≤0.2, H2≤0.1, CO2≤0.1, CO≤0.1, CH4≤0.2, N2≤0.5

99.999%-99.9999% High Purity Helium Gas