Helium - Cheon-Ma Industrial Gas Co., Ltd.

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Cheon-Ma Industrial Gas Co., Ltd.
[Korea]

Address:
#1031-4 Yongsu-ri, Jeonggwan-myeon, Gijang-gun, Busan 619-963 Korea

Phone:
82-51-7283355

Contact name:
Edwin Kim , Manager

Specialty Gases

	Helium

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Helium

| Description

Helium is the chemical element with atomic number 2, and is represented by the symbol He. It is a colorless, odorless, tasteless, non-toxic, inert monatomic gas that heads the noble gas group in the periodic table. Its boiling and melting points are the lowest among the elements and it exists only as a gas except in extreme conditions.

| Usage

Airships, balloons and rocketry
Deep-sea diving
Medical imaging (MRI)
Nuclear power plant
Fiber optics
Weldings

| Physical Properties

Symbol	He
Molecular	4.00
Density (kg/m3) at 0°C, 1atm	0.18
Boiling point (°C)	-268.9
Melting point (°C)	-272.1
Critical temperature (°C)	-267.9
Critical pressure (atm)	2.2
Color, Odor	None

| Quality

Purity	O2	H2O	T.H.C	CO	CO2
≥99.999%	≤2.0	≤2.0	≤1.0	≤1.0	≤1.0

| Supply

Cylinder size	47 L
Contents	130 kg/cm2 (35°C)
Valve type	JIS 22mmR, KS 22mmR

Related Keywords: Helium , Specialty Gases

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