Molecular formula: KBF4 Molecular Weight: 125.90 
 Uses: used as a thermosetting resin grinding wheel, abrasive, aluminum and magnesium casting of raw materials for the production of boron alloy, heat welding and brazing flux, the preparation of boron trifluoride and other raw materials of fluoride, the electrochemical synthesis of analytical reagent, in addition to also used for the electrolyte of low-chromate-plated chrome and pewter as well as welding and fusion-plated, gold, stainless steel. 
 Properties: White powder or gelatinous crystalline, non-hygroscopic. Bitter, slightly soluble in water and hot ethanol, insoluble in cold ethanol and alkali can be sulfuric acid, the acid decomposition of boron trifluoride, and alkali metal carbonate melt generated fluoride and borate. The proportion 2.505g/mL (25 ° C), melting point 350 ° C, toxic! 
 CAS # :14075-53-7 
 Product specifications exports of industrial-grade reagent grade 
 Implementation of standards GB/T22667-2008 GB/T22667-2008 GB/T22667-2008 
 The fluoroborate potassium (KBF4)% ≥ 98.0 ≥ 99.5 ≥ 98.0 
 Free acid (HF)% ≤ 0.1 ≤ 0.1 ≤ 0.1 
 Free base (KOH)% ≤ 0.1 ≤ 0.1 ≤ 0.1 
 Chloride (Cl)% ≤ 0.002 ≤ 0.002 ≤ 0.005 
 Sulfate (SO42-)% ≤ 0.002 ≤ 0.002 ≤ 0.005 
 Phosphate (PO43-)% ≤ 0.005 ≤ 0.005 ≤ 0.01 
 Iron (Fe)% ≤ 0.001 ≤ 0.002 ≤ 0.005 
 Heavy metals (Pb)% ≤ 0.001 ≤ 0.001 ≤ 0.003 
 Potassium fluosilicate% ≤ 0.3 ≤ 0.02 ≤ 0.8 
 In the control test 
 Appearance of the identification of white powder or gelatinous crystalline white powder or gelatinous crystalline white powder or gel crystallization 
 Loss on drying (105 ° C / 2H)% ≤ 0.5 ≤ 0.2 ≤ 0.1 
 White (70-90um particle size)% ≥ 85 ≥ 90 ≥ 95 
 Foreign matter determination ≤ 1mm/10 ≤ 1mm/10 only only ≤ 1mm/10 only. 
 Particle size (USSCREEN 95%) of 95% for 100-200 mesh 100-200 mesh 100-200 mesh 95%