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SEMA Gases

Acetylene (C2H2) Calibration Gas

Acetylene calibration gas is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block.

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Available sizes 34L, 58L, 110L
Certification tolerance +/- 2%
Production tolerance +/- 5%
Stability 60 months

Acetylene calibration gas is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne. This colourless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odourless, but commercial grades usually have a marked odour due to impurities. Acetylene is not especially toxic, but when generated from calcium carbide, it can contain toxic impurities such as phosphine and arsine traces, giving it a distinct garlic-like smell. It is also highly flammable, as are most light hydrocarbons, hence its use in welding.


34L 58L 110L Cert. tol. Prod. tol. Stability
0.5 % Acetylene // Air Available Available Available +/- 2% +/- 5% 60
SEMA Gases brochure SEMA Gases Brochure.pdf

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Sebastian Kelderman

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