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Propyne C3H4 Organic gas

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

 

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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.

Application

Used to make acetone and so on.

Reference

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