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Potassium methoxide

CAS Number
865-33-8
EC Number
212-736-1
Chemical Formula
CH4O.K
Molecular Weight
70.132 g/mol

Description

Potassium methoxide (CAS 865-33-8 ), also sold as potassium methylate or potassium methanolate, is a strong alkoxide base used primarily as a catalyst and reagent in industrial chemical synthesis. Its high reactivity in non-aqueous systems makes it a preferred choice over milder bases in processes requiring fast, selective reactions. In pharmaceutical manufacturing, it drives condensation and cyclization. These reactions are used to produce active pharmaceutical ingredients and intermediates. Biodiesel producers rely on it as a transesterification catalyst, converting triglycerides into fatty acid methyl esters. In agrochemical synthesis, it supports the production of herbicides and pesticides where controlled base-catalyzed reactions are required. Polymer chemists use it to initiate anionic polymerization. It also catalyzes the production of specialty polyesters and polyethers. Potassium methoxide is supplied as a solution in methanol, with concentrations typically ranging from 25% to 32%. It is also available as a dry powder or free-flowing solid for applications where solvent-free handling is required. Standard technical and industrial grades are available for various uses. Pharmaceutical-grade material is supplied to meet GMP requirements. Packaging options range from drums to IBC totes, reflecting demand from both batch processors and continuous production facilities. Contact us for supply of Potassium methoxide Request Quote

Other Names (Synonyms)

potassium methanolate | Potassium methylate | Methanol, potassium salt | 45MYQ0GWGB | Methanol, potassium salt (1:1) | Methoxy potassium | RefChem:867893 | Feldalat KM

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-20°C
Boiling Point84°C
Density0.950 g/cm³
Flash Point7°C
Appearancesolid
ColorClear colorless
FormLiquid
Water Solubilitymay decompose
Vapor Pressure0Pa at 25℃
Refractive Indexn 20/D 1.37
pH12.8 (7g/l, H2O, 20℃)

Safety & Handling

Danger
GHS02· FlammableGHS05· CorrosiveGHS07· Irritant

Hazard Statements

H228
H228
H251
H251
H302
H302
H314
H314
H318H318

Precautionary Statements

P210
P210
P235
P235
P240
P240
P241
P241
P260
P260
P264
P264
P270
P270
P280
P280
P316
P316
P317
P317
P321
P321
P330
P330
P363
P363
P405
P405
P407
P407
P410
P410
P413
P413
P420
P420
P501
P501
P265
P265
P317
P317
P340
P340
P378
P378
P331
P331
P354
P354
P338

Trade & Regulatory

HS Code29051900
UN Number3274
ADR Class3
Packing GroupII
WGK (Germany)1