Methanol

CAS RN: 67-56-1

Other Hazardous Reactions

Accidental use of methanol in place of hexane to rinse out a hypodermic syringe used for a dilute alkylaluminium solution caused a violent reaction which blew the plunger out of the barrel.
A crust of residual cynauric chloride left in a reactor from a previous batch reacted with the methanol (usually charged first) to form hydrogen chloride. When the base was added (usually before the chloride), vigorous evolution of carbon dioxide expelled some of the solvent. In a second incident, accidentally boubling the charge of cyanuric chloride but not the base, led to the development of free acid (which auto-catalyses the reaction with methanol), and a runaway reaction developed causing violent boiling of the solvent, methyl chloride evolution and damage to the plant.
Dichloromethane, previously considered to be non-flammable except in oxygen, becomes flammable in air... at 27 deg C/1 bar in presence of less than 0.5 vol% of methanol.
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