Potassium Fluoroborate

Items

Reagent grade

Export grade

Industrial grade

Standard

GB/T22667-2008

GB/T22667-2008

GB/T22667-2008

Potassium Fluoroborate (KBF₄)   %

≥99.5 

≥99.0

≥98.5

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 (SO₄^2-)    %

≤0.002 

≤0.002

≤0.005

Phosphate (PO₄^3-)   %

≤0.005 

≤0.005

≤0.01

Fe      %

≤0.002 

≤0.001

≤0.005

Heavy metal (Pb)   %

≤0.001 

≤0.001

≤0.003

Potassium fluosilicate       %

≤0.02 

≤0.3

≤0.8

Intermediate inspection

Appearance Identification

white powder or gelatinous crystal

white powder or gelatinous crystal

white powder or gelatinous crystal

Loss on dry (105℃/2H)  %

≤0.1

≤0.2

≤0.5 

Whiteness (70-90umGranularity)   %

≥95

≥90

≥85 

Foreign substance detection

≤1mm/10

≤1mm/10

≤1mm/10

Granularity (U.S.SCREEN)    mesh

95% pass 100-200 mesh

95% pass 100-200 mesh

95% pass 100-200 mesh

Shelf life

Two years

Two years

Two years

Supply reference

Production process

synthesis of Fluoroboric acid

Refined products

HF and Metatitanic acid reaction, KOH neutralization

Packing

25KG Paper and plastic four-layer /16T/(20')FCL

25KG Paper and plastic four-layer /16T/(20')FCL

25KG Paper and plastic three layers /16T/(20')FCL