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Potassium metaborate

Potassium metaborate chemical structure
CAS Number13709-94-9
FormulaKBO2 · ~1.5H2O
Mol. Weight81.91 (anhydrous basis) g/mol

What is Potassium metaborate?

Potassium metaborate is a chemical compound with CAS number 13709-94-9 and molecular formula KBO2 · ~1.5H2O. It is used in various industrial and research applications.

Specifications

Linear Formula

KBO2 · ~1.5H2O

Molecular Weight

81.91 (anhydrous basis) g/mol

Assay/Purity

≥31% B2O3 basis
≥42% K2O basis

Impurities

≤0.005% heavy metals (as Pb)

Safety Information

GHS07GHS07
GHS08GHS08
Signal Word

Warning

Hazard Statements

H319-H361d

Precautionary Statements

P281-P305 + P351 + P338

Required PPE

Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

Anion Traces

chloride (Cl-): ≤500 mg/kg
sulfate (SO42-): ≤1000 mg/kg

Cation Traces

Fe: ≤50 mg/kg

EC Number

237-262-2

WGK Germany

3

Frequently Asked Questions