| Place of Origin |
Zhejiang China (Mainland) |
| Grade Standard |
Reagent Grade |
Specifications of Potassium Fluoroborate are as following: Molecular FormulaKBF4 Molecular Weight 125.91 PropertiesIt is white powder or gelatinous crystal, non-hygroscopic and bitter. It is a hexagonal rhombus crystal when crystallizing from aqueous solution, with relative density of 2.50 and melting point of 529.5. It is slightly soluble in water and hot ethanol. It starts decomposing at melting point, produces boron trifluoride by strong acid such as sulfuric acid and reacts with alkaline metal and carbonates to produce fluoride and borate. It is toxic! UsagesIt is used as flux for soldering and brazing, as raw materials of aluminum and magnesium sand-casting to produce boron-containing alloy, as filler in grinding wheel of thermoset resin, to clean light metal dreg while welding and fusing silver, gold and stainless steel. It is also used as the material to produce boron trifluoride and other fluoride, as reagent in electrochemistry. Execute Standardcorporation standard SpecificationParameterDataPotassium fluoroborate(KBF4) ≥ 99Chlorid(CI) ≤ 0.1Sulfate(SO42-) ≤ 0.01Iron(Fe) ≤ 0.03Plumbum (Pb) ≤ 0.01Calcium(Ca) ≤0.05Magnesium(Mg) ≤0.05Water(H2O) ≤0.05Silica(SiO2) ≤0.3PackingIn 25kg woven plastic bag lined with high pressure polyethylene plastic bag. Price