- Min.Order :1 Metric Ton
- Purity: 94%min
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Keywords
Stannous Fluoride CAS NO.: 7783-47-3 Stannous Fluoride
Quick Details
- Appearance:White crystalline powder
- Application:Used in toothpaste production, in order to protect the teeth to prevent calcium be dissolve out. Daily chemical industry, reduce drug allergy. Used in brazing aluminium alloy as soft soldering flux.
- PackAge:25kg Plastic-paper bag four layers/20T/(20')FCL
- ProductionCapacity:15000|Metric Ton|Year
- Storage:RT
- Transportation:By sea
Superiority:
Stannous Fluoride
Identification:
Chemical Name: Stannous Fluoride
Synonyms: Tin(II)Fluoride
CAS No.: 7783-47-3
Molecular weight : 156.71
Molecular Formula: SnF2
Properties: white Monoclinic crystal . Melting point 215℃. Boiling point 850℃.
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Details:
Stannous Fluoride
Identification:
Chemical Name: Stannous Fluoride
Synonyms: Tin(II)Fluoride
CAS No.: 7783-47-3
Molecular weight : 156.71
Molecular Formula: SnF2
Properties: white Monoclinic crystal . Melting point 215℃. Boiling point 850℃.
Application: used in toothpaste production, in order to protect the teeth to prevent calcium be dissolve out. Daily chemical industry, reduce drug allergy. Used in brazing aluminium alloy as soft soldering flux.
Specifications:
|
Items |
Electronic grade |
Toothpaste grade |
Pharmaceutical grade |
|
Standard |
SEMI C1 |
Enterprise Standard |
USP-34 |
|
Assay |
≥99.9% |
≥99.0% |
≥94.0% |
|
Sn |
≥75% |
≥75% |
≥71.2% |
|
F |
23.5-24.8% |
22.3-25.5% |
22.3-25.5% |
|
Sb |
≤30 ppm |
≤0.005% |
≤0.005% |
|
Pb |
≤10 ppm |
≤0.001% |
≤0.003% |
|
Arsenic (As) |
≤1 ppm |
≤0.0003% |
≤0.0003% |
|
Hg |
≤1 ppm |
≤0.0002% |
≤0.0002% |
|
Fe |
≤5 ppm |
≤0.001% |
≤0.0018% |
|
Si |
≤50 ppm |
-- |
-- |
|
PH (0.4% Aq. solution) |
2.8-3.5 |
2.8-3.5 |
2.8-3.5 |
|
Intermediate inspection |
|||
|
Appearance Identification |
white crystal |
white crystal |
white crystal |
|
Loss on dry (105℃/4H) % |
≤0.2 |
≤0.2 |
≤0.5 |
|
Whiteness (70-90umGranularity) % |
≥98 |
≥98 |
≥95 |
|
Granularity (U.S.SCREEN) mesh |
90% pass 80-100 mesh |
90% pass 80-100 mesh |
90% pass 80-100 mesh |
|
Transmission (3% Aq. solution) % |
≥95 |
≥95 |
≥90 |
|
Shelf life year |
Two years |
Two years |
Two years |
|
Supply reference |
|||
|
Production process |
synthesis method |
synthesis method |
synthesis method |
|
Packing |
25kg Plastic-paper bag four layers/20T/(20')FCL |
25kg Plastic-paper bag four layers/20T/(20')FCL |
25kg Plastic-paper bag four layers/20T/(20')FCL |
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