| AMMONIUM SILICOFLUORIDE | |||
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PRODUCT IDENTIFICATION |
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| CAS NO. | 16919-19-0 |
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| EINECS NO. | 240-968-3 | ||
| FORMULA |
(NH4)2SiF6 |
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| MOL WT. | 178.15 | ||
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H.S.CODE |
2826.90 |
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| TOXICITY | Oral mouse LD50: 70 mg/kg | ||
| SYNONYMS | Ammonium Fluorosilicate; Cryptophthalite; | ||
| Silicon Plasma Standards; Silicate(2-), Hexafluoro-, Diammonium; Ammonium Hexafluorosilicate; | |||
| SMILES | Hydrogen Fluoride and Ammonia | ||
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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| PHYSICAL STATE | White free flowing crystals | ||
| MELTING POINT | 100 C (Decomposes) | ||
| BOILING POINT | |||
| SPECIFIC GRAVITY | 2.01 | ||
| SOLUBILITY IN WATER | Soluble (Soluble in alcohol) | ||
| pH | 3.3 (1% Sol.) | ||
| VAPOR DENSITY | |||
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AUOIGNITION |
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NFPA RATINGS |
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REFRACTIVE INDEX |
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| FLASH POINT |
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| STABILITY | Stable under ordinary conditions | ||
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APPLICATIONS |
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| Hardening and dustproofing of concrete, manufacturing of ammonium chlorate, Glass etching, Souring agent, Sand inhibiitor in Magnesium metal casting, Textile | |||
| SALES SPECIFICATION | |||
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APPEARANCE |
White free flowing crystals | ||
| ASSAY [(NH4)2SiF6] | 98.0% min | ||
| FLUORIDE (F) | 60% min | ||
| FREE ACID (H2SiF6) | 0.3% max | ||
| MOISTURE |
0.6% max |
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| WATER INSOLUBLES | 0.5% max | ||
| SULFATE (SO4) | 0.6% max | ||
| TRANSPORTATION | |||
| PACKING | 25kgs in Bag | ||
| HAZARD CLASS | 6.1 | ||
| UN NO. |
2854 |
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PRICES |
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