USD $1.00-10.00 / Kilogram
USD $15.00-50.00 / Kilogram
USD $15.00-50.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $100.00-150.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $100.00-150.00 / Kilogram
USD $100.00-150.00 / Kilogram
potassium fluorozirconate
identification:
chemical name: potassium fluorozirconate
synonyms: potassium zirconium hexafluoride
cas no.: 16923-95-8
molecular weight : 283.41
molecular formula: k2zrf6
properties: colorless or white orthorhombic needle-like crystals. specific gravity 3.48 melting point: 840 ℃. soluble in water, soluble in cold water, insoluble in ammonia, air stable, non-hygroscopic, red heat without weight loss, the crystallization of hard, toxic.
potassium fluorozirconate
identification:
chemical name: potassium fluorozirconate
synonyms: potassium zirconium hexafluoride
cas no.: 16923-95-8
molecular weight : 283.41
molecular formula: k2zrf6
properties: colorless or white orthorhombic needle-like crystals. specific gravity 3.48 melting point: 840 ℃. soluble in water, soluble in cold water, insoluble in ammonia, air stable, non-hygroscopic, red heat without weight loss, the crystallization of hard, toxic!
application: used for the metal zirconium, zirconium compounds, iron alloy, magnesium alloy, steel and non-ferrous alloys, and atomic energy industry, and advanced electrical materials, refractories, electric vacuum technology, materials, fireworks, ceramics, enamel and glass production.
specifications:
items |
electronic-grade |
export grade |
industrial grade |
assay (k2zrf6) % |
≥99.5 |
≥99.0 |
≥98.0 |
chloride (cl) % |
≤0.01 |
≤0.05 |
≤0.2 |
fe % |
≤0.0005 |
≤0.002 |
≤0.02 |
heavy metal (pb) % |
≤0.0005 |
≤0.002 |
≤0.005 |
free acid (as hf) % |
≤0.001 |
≤0.002 |
≤0.05 |
sulfate (so42-) % |
≤0.002 |
≤0.005 |
≤0.02 |
zr(hf)o2 % |
43.3-43.7 |
43.0-43.5 |
42.5-43.2 |
phosphate (po43-) % |
≤0.01 |
≤0.005 |
-- |
zr % |
≥31.5 |
≥31.5 |
≥31.0 |
na % |
≤0.05 |
≤0.10 |
≤0.20 |
ti % |
≤0.001 |
≤0.005 |
≤0.01 |
silicon (sio2) % |
≤0.05 |
≤0.10 |
≤0.20 |
water insoluble % |
≤0.05 |
≤0.10 |
≤0.25 |
residue on ignition % |
≤0.02 |
≤0.4 |
≤1.0 |
ph value (5% aq. solution) |
5.5-6.5 |
5.5-6.5 |
5.5-6.5 |
intermediate inspection |
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appearance identification |
white crystalline powder |
white crystalline powder |
white crystalline powder |
loss on dry (105℃/2h) % |
≤0.1 |
≤0.2 |
≤0.5 |
whiteness (70-90umgranularity) % |
≥95 |
≥90 |
≥80 |
foreign substance detection |
≤1mm/10 |
≤1mm/10 |
≤1mm/10 |
granularity (u.s.screen) mesh |
90% pass 40-150 mesh |
90% pass 40-150 mesh |
不检 |
shelf life |
two years |
two years |
two years |
supply reference |
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production process |
refined |
synthesis of fluorozirconate acid |
synthesis of potassium chloride |
packing |
25kg composite paper bag five layers/16t/(20')fcl |
25kg composite paper bag four-layer /16t/(20')fcl |
25kg composite paper bag 2 layers/16t/(20')fcl |