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Product Details:
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| Appearance: | White Fine Powdered Solid | UN Number: | 2674 |
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| CAS NO: | 16893-85-9 | Density: | 2.68 |
| Purity: | 99% | Usage: | Water Fluoridation |
| High Light: | sodium fluorosilicate,sodium hexafluorosilicate |
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Sodium Fluorosilicate is a fine, white, odorless, powdered solid. Toxic by
ingestion, inhalation and skin absorption.
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Properties
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Chemical formula
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Na2[SiF6] | ||
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Molar mass
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188 g/mol | ||
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Appearance
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white granular powder | ||
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Odor
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odorless | ||
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Density
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2.7 g/cm3 | ||
| Solubility in water | 0.64 g/100 mL (20 °C) 1.27 g/100 mL (50 °C) 2.45 g/100 mL (100 °C) |
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Solubility
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insoluble in alcohol | ||
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Refractive index (nD) |
1.312 | ||
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Structure |
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Crystal structure |
hexagonal | ||
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Hazards |
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Lethal dose or concentration (LD, LC): |
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| LDLo (lowest published) |
70 mg/kg (mouse, oral)
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Related compounds |
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| Other cations | Ammonium hexafluorosilicate Fluorosilicic acid |
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HAZARD CLASS
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6.1 |
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1. Appearance :White, crystalline powder.
2. Production method:Sodium fluorosilicate is made by neutralizing fluorosilicic
acid with sodium chloride or sodium sulfate.
3. Features:It is odorless and tasteless. Its relative density is 2.68;
it has moisture absorption capability. It can be dissolved in a solvent such as ethyl
ether but insoluble in alcohol. The solubility in acid is greater than that in water.
It can be decomposed in alkaline solution, generating sodium fluoride and silica.
After searing (300 ℃), it is decomposed into sodium fluoride and silicon
tetrafluoride. It is poisonous!
| Na2Si6 | Item | Specification |
| Na2SiF6 | ≥99% | |
| Fe | ≤0.02% | |
| Loss of Weight on drying at 105°C | ≤0.40% | |
| Insoluble in Water | ≤0.50% | |
| Free Acid(HCL) | ≤0.15% | |
| Heavy Metal(Pb) | ≤0.05% |
►Chemical Properties
It appears as colorless hexagonal crystals. It is odorless and tasteless. It has
hygroscopicity. It can be dissolved in a solvent such as ethyl ether but insoluble in
alcohol with its solubility in acid is being greater than in the water.
►Application
• Water fluoridation
• Additives in cement
• Opal glass
• Ore flotation
• Other fluoride chemical (like sodium fluoride, magnesium silicofluoride, cryolite,
aluminum fluoride)
• Productionin the field of laundry souring
• Manufacturing enamels
• Manufacturing coated papers
• Wood preservative
• Foam production
50kg /plastic bag ,or customized
1-20 ton
Contact Person: anny
Tel: +8613391072385
