Industrial Gas

Industrial Gases List

Argon / Liquid Argon

Colourless, Odorless, Inert
Chemical Formula		Ar
Molecular Weight		39.95
Gas Specific Gravity (Air = 1)		1.38
Density	Gas Density(kg/Nm3)	1.783
Density	Liquid Density(kg/ℓ)	1.402
Melting Point (°C)		-189.3
Boiling Point (°C)		-189.8

General Usage
Steel, Metallurgy, Machinery	AOD steelmaking, Atmospheric gas, Welding , Cutting
Semiconductor, Electronics Industry	Atmospheric gas, Carrier gas

Oxygen / Liquid Oxygen

Colourless, Odorless, Combustion Supporting
Chemical Formula		O2
Molecular Weight		32
Gas Specific Gravity (Air = 1)		1.11
Density	Gas Density(kg/Nm3)	1.429
Density	Liquid Density(kg/ℓ)	1.141
Melting Point (°C)		-219
Boiling Point (°C)		-183

General Usage
Steel, Machinery, Shipbuilding	Steel manufacturing, Refining, Cutting, Scarfing, Welding
Glass	Glass Melting
Chemistry, Toiletries	Oxidation reaction, Pulp bleaching
Semiconductor, Electronics	Oxidation reaction
Medical	Breathing
Pollution Control	Waste water treatment

Nitrogen / Liquid Nitrogen

Colourless, Odorless, Inert
Chemical Formula		N2
Molecular Weight		28.01
Gas Specific Gravity (Air = 1)		0.97
Density	Gas Density(kg/Nm3)	1.251
Density	Liquid Density(kg/ℓ)	0.8084
Melting Point (°C)		-210
Boiling Point (°C)		-196

General Usage
Steel, Metal, Metallurgy	Atmospheric gas for heat treatment, Cooling fit, Compression moulding
Semiconductor, Electronics Industry	Purging, Sealing
Chemistry	Atmospheric gas
Food	Antioxidant, Food freezing
Civil Engineering	Concrete cooling

Deuterium

Item
Chemical Formula	D2
Molecular weight	4.029
Burning Quality	Combustible
Melting point	-254.4°C
Boiling point	249.6°C
Range of explosion	5.0~75%
Ignition Temperature	585°C

General Usage
Semiconductor	Annealing
Optical Fiber	Annihilation of non-bridging oxygen hole centers
Nuclear Fusion	Fuel
OLED	Luminescent Materials
Chemical	Analysis Synthesis

Electronics Specialty Gases

Type of Gases (classified by characteristics)

Toxic Gas

NH3, BCL3, BF3, CL2, CLF3, F2, GeF4, HBr, HF, 20% F2/N2, NO, WF6, NF3, PF3

Toxic / Flammable Gas

AsH3/Mix, CO, COS, DCS, GeH4/Mix, C4F6, PH3, C2H2, D2, DFM, Si2H6, CH3F, H2, C3H6, SiH4, TMS

Inert Gas

CF4, C4F8, SF6, CHF3, C2F6, Rare Gases, Laser Gases O2/He Mix, He/N2 Mix, CO2

Liquids

HCDS, C5F8, SiCL4, TiCL4

Type of Gases (classified by semiconductor process)

ESG - Cleaning Process

Hexaﬂuoroethane	C2F6
Carbon tetraﬂuoride	CF4
Chlorine	Cl2
Chlorine trifluoride	ClF3
Nitrogen trifluoride	NF3
Oxygen	O2
Sulfur hexafluoride	SF6

ESG - Deposition Process

Hexaﬂuoroethane	C2F6
Acetylene	C2H2
Propylene	C3H6
Methane	CH4
Carbon monoxide	CO
Hydrogen sulfide	H2S
Nitrous oxide	N2O
Ammonia	NH3
Nitric oxide	NO
Oxygen	O2
Tetrafluorosilane	SiF4
TCS - Trichlorosilane	SiHCl3
Triethylaluminum	TEA
Trimethylaluminum	TMA
3MS - Trimethylsilane	TMS
Tungsten hexafluoride	WF6
TEOS –Tetraethyl Orthosilicate	Si(OC₂H₅)₄

ESG - Etching Process

Hexaﬂuoroethane	C2F6
Octaﬂuoropropane	C3F8
Hexaﬂuoro-3- butadiene	C4F6
Octoﬂuorocyclo butane	C4F8
Octoﬂuorocyclo pentene	C5F8
Carbon tetraﬂuoride	CF4
Difluoromethane	CH2F2
Pentafluoroethane	CH2F5
Fluoromethane	CH3F
Methane	CH4
Trifluoromethane	CHF3
Chlorine	Cl2
Carbon monoxide	CO
Carbon dioxide	CO2
Krypton	Kr
Nitrous oxide	N2O
Nitrogen trifluoride	NF3
Nitric oxide	NO
Oxygen	O2
Sulfur hexafluoride	SF6
Tetrafluorosilane	SiF4
Xenon	Xe

ESG - Annealing Process

Deuterium	D2
Hydrogen	H2

ESG - Lithography Process

Carbon dioxide	CO2
Hydrogen	H2
Krypton	Kr
Neon	Ne
Xenon	Xe

ESG - Purging Process

Argon	Ar
Helium	He
Hydrogen	H2
Nitrogen	N2

Helium / Liquid Helium / Heliox

Colourless, Odorless, Inert
Chemical Formula		He
Molecular Weight		4003
Gas Specific Gravity (Air = 1)		0.14
Density	Gas Density(kg/Nm3)	0.1785
Density	Liquid Density(kg/ℓ)	0.1248
Melting Point (°C)		-272.2 (2.63MPa)
Boiling Point (°C)		-268.9

General Usage
Semiconductor, Electronics Industry	Optical fibers, Wafer cooling, Carrier gas
Inspections	Gas analysis
Steel, Machinery, Metallurgy	Welding, Laser gas
Balloon	Airship, Balloon
Medical/Research	MRI, NMR
Offshore	Diving Gas

Helium Supply Chain

In addition to our standard trading operations with America, in 2013 Iwatani became the first company in Asia to gain the rights to import helium directly from Qatar. By procuring helium from multiple sources, we are able to maintain a stable supply for our customers.

Due to the ease of transporting goods into neighboring Southeast Asian countries, we established the Malaysia Helium Centre near the border of Malaysia and Singapore in 2013.
From liquid helium used for MRI and NMR to helium gas found in semiconductors, diving equipment, balloons and leak inspection devices, we offer various methods of supply to support our customers throughout Southeast Asia.

Dimethyl Ether

Colourless, Ether odour
Chemical Formula		C2H6O
Molecular Weight		46.07
Gas Specific Gravity (Air = 1)		0.14
Density	Gas Density(kg/Nm3)	1.917
Density	Liquid Density(kg/ℓ)	0.661
Melting Point (°C)		-24.85
Boiling Point (°C)		-141.5

General Usage
Aerosol
Fuel
Cylinder
Ton Tank
ISO Tank

Acetylene

Density	Colourless, Strong pungent odor
Chemical Formula		C2H2
Molecular Weight		26.04
Gas Specific Gravity (Air = 1)		0.14
Density	Relative Density	0.899 (0℃, 0MPa, Air=1)

Hydrogen

Colourless, Odorless, Ignitable
Chemical Formula		H2
Molecular Weight		2.016
Gas Specific Gravity (Air = 1)		0.07
Density	Gas Density(kg/Nm3)	0.0898
Density	Liquid Density(kg/ℓ)	0.0709
Melting Point (°C)		-259
Boiling Point (°C)		-253

General Usage
Glass	Optical fibers, Quartz glass
Chemistry	Ammonia synthesis reaction, Chemical process
Semiconductor, Electronics	LED, Solar, Liquid christal
Steel, Machinery, Metallurgy	Welding, Cutting, Deoxidizing, Bright annealing
Cosmetics	Hydrogenation
Fuel Cell	Fuel cell vehicles

Ammonia

Colourless, String pungent odor
Chemical Formula		NH3
Molecular Weight		17.03
Density	Gas Density(kg/Nm3)	0.59
Density	Liquid Density(kg/ℓ)	0.63
Melting Point (°C)		-33.4
Boiling Point (°C)		-77.74

General Usage
Steel, Metal	Atmospheric Gas
Power Generation	Refrigerant, Denitration, Desulfurization
Agriculture	Fertilizer

Freon

HC	:	R600, R600a, R290, R1270
HCFC	:	R22, R142B
HFC	:	R32, R134a, R404a, R407c, R410A, R417A, R507A, R508A

General Usage
Refrigerant
Aerosol
Solvent

Mixture Gas, LPG

Acom, Standard Gas, other various mixture gases, LPG

Other Products

1. Nitrogen Generator
2. PSA
3. Portable Gas Detector
4. Stationary Gas Detector
5. other gas equipment

Industrial Gas List