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Email ：PharmaSources@imsinoexpo.com
Whatsapp ：+86-13621645194
Factory Location: Building A311, Building A, No. 1255 Jinhai Road, Pudong New Area, Shanghai (Dingxin Building)
Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Australasia,Asia,Middle East,Africa
Sample Provided: no
Payment Terms: L/L
Specifications
Purity , %
99.999
99.9999
99.99999
Oxygen
≤1.0 ppmv
≤50 ppbv
≤10 ppbv
Nitrogen
≤2.0 ppmv
≤500 ppbv
≤50 ppbv
Carbon Dioxide
≤0.5 ppmv
≤100 ppbv
Carbon Monoxide
≤0.5 ppmv
≤50 ppbv
Carbon Dioxide+Carbon Monoxide
≤5 ppbv
Methane
≤0.5 ppmv
≤100 ppbv
≤5 ppbv
Water
≤3.0 ppmv
≤200 ppbv
≤100 ppbv
Hydrogen
≤1.0 ppmv
≤10 ppbv
Neon
≤4.0 ppmv
≤15 ppbv
Ship
DOT Shipping Name
Helium , Compressed
DOT Classification
2.2
DOT Label
Non-flammable Gas
UN Number
UN 1046
CAS No.
7440-59-7
CGA/DISS/JIS/BS341/DIN477
580/718/W21-14L/NO.3/NO.6
Shipped as
Compressed Gas
Technical Information
Cylinder State @ 21.1°C
Gas
Flammable Limits In Air
Non-flammable
Auto Ignition Temperature (°C )
’-
Molecular Weight (g/mol)
4.0026
Specific gravity (air =1)
0.138
Critical Temperature ( °C )
-267.95
Critical Pressure ( psig )
18.29
Applications
· In various analytical instrument applications, most commonly as a carrier gas in gas chromatography
· As a heat transfer material
· In the manufacturing of calibration mixtures
· As a component in laser gas mixtures
· In the semiconductor industry as a carrier/purge gas
· Helium mixtures with hydrocarbons are used in Geiger counters employed for the detection of a, b, g and X-rays
· In mixtures with oxygen as a breathing gas.
Audited Supplier
Pharma Sources Insight January 2025
