Name: Potassium borofluoride

Other names: potassium fluoborate, potassium tetrafluoroborate, potashite, potassium borofluoride

Chemical formula: KBF4

Molecular weight: 125.90

CAS Registry Number: 14075-53-7

EINECS accession number: 237-928-2

Melting point: 530°C

Density: 2.5g/mL

Dangerous goods transport code: UN 3260

use

1. It is used as a flux for welding, and as a raw material for making other fluoride salts, and can also be used in electrochemical processes and reagents.

2. Used as a flux for hot welding and brazing, as a raw material for aluminum-magnesium casting to produce boron-containing alloys, and as a filler in heavy-duty grinding wheels using resin as an abrasive binder. When welding and fusing silver, gold and stainless steel, it can clean up the dross of light metal. It is the raw material for making boron trifluoride and other fluoride salts. Also used in electrochemical processes and reagents.

3. Potassium borofluoride is used in low-chromic acid chromium plating and lead-tin alloy electrolyte. Industrial products contain 95% of potassium borofluoride, and industrial products used for chromium plating need to control the chloride and sulfate content. Potassium borofluoride can also be used for texture etching of aluminum alloy and etching of titanium and silicon wafers.