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Propyne C3H4 Organic gas

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CAS NO	74-99-7
UN NO	1954
EINECS NO	200-828-4
Molecular weight	40.06
Appearance	Colorless, flammable gas with a sweet odor
Melting point	-102.7℃
Boiling point	-23.2℃
Density	0.6070
DOT Class	2.1
Label	flammable gas

Category: Organic Gases

Description

Propyne, or methyl acetylene, is a alkyne that is one of the components of MAPP gas. When mixed with air, an explosive mixture can be formed. The gas is heavier than air and can spread to a considerable distance at the lowest point.