Agent Name

Potassium methylate

Alternative Name

Potassium methoxide

CAS Number

865-33-8

Formula

C-H4-O.K

Major Category

Metals

Synonyms

Methanol, potassium salt; Potassium methanolate; [ChemIDplus] Methoxy potassium; Potassium methoxide; [Reference #1] Kaliummethanolat; Kaliummethylat; [Reference #2] UN3206

Category

Metal Alkoxides

Description

White to yellow hygroscopic solid; [Reference #1] Commercial products are powders or 32% solutions in methanol; [Reference #2] White powder; [Alfa Aesar MSDS]

Sources/Uses

Used as a chemical intermediate and in biodiesel production; [Reference #2]

Comments

Rapidly and exothermically reacts with tissue water forming potassium hydroxide (responsible for corrosivity) and methanol; Not likely to cause skin sensitization or be carcinogenic; [Reference #2] Reacts violently with water; Self-heating, may catch fire; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Alfa Aesar MSDS] See "Methyl alcohol." See "Potassium hydroxide." See "Sodium methylate."

Exposure Assessment
Vapor Pressure

4.8E-6 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Alkali metal alcoholates, self-heating, corrosive, n.o.s."

Reference Link

OECD SIDS: Methanolates - 2006

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

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Chemical Information

Search ChemIDplus

Related Information in HazMap
Other Information

No other related information on this agent was found.