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Basic Information
| CAS No.: | 18972-56-0 |
|---|---|
| Name: | Magnesium hexafluorosilicate hexahydrate |
| Molecular Structure: | |
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| Formula: | MgSiF6.6(H2O) |
| Molecular Weight: | 274.473 |
| Synonyms: | Silicate(2-),hexafluoro-, magnesium, hexahydrate (8CI);Magnesium fluorosilicate (MgSiF6),hexahydrate;Magnesium hexafluorosilicate (MgSiF6) hexahydrate;Magnesiumhexafluorosilicate hexahydrate;Magnesium hexafluorosilicate(2-) hexahydrate;Magnesium silicon hexafluoride hexahydrate; |
| EINECS: | 241-022-2 |
| Density: | 1.79 g/cm3 |
| Melting Point: | 120 °C (dec.) |
| Boiling Point: | 100oC at 760 mmHg |
| Appearance: | White powder |
| Hazard Symbols: | 25:; |
| Risk Codes: | 25 |
| Safety: | 24/25-45 |
| Transport Information: | UN 2853 |
| PSA: | 9.23000 |
| LogP: | 2.07610 |
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Magnesium hexafluorosilicate hexahydrate
Chemistry
The molecular formula of Magnesium hexafluorosilicate(18972-56-0) is F6H12MgO6Si and its formula weight is 274.47.
Magnesium hexafluorosilicate(18972-56-0) has a melting point of 120°C (dec.).
The chemical synonyms of Magnesium hexafluorosilicate(18972-56-0) are eulavasm;fluosilicatedemagnesium;MagnesiumfluosilicateHexahyd;Magnesiumhexafluorosilicate(2-)hexahydrate;Magnesiumsiliconhexafluoridehexahydrate;Silicate(2-),hexafluoro-,magnesium,hexahydrate;MAGNESIUM SILICOFLUORIDE;MAGNESIUM SILICOFLUORIDE HEXAHYDRATE
The molecular structure of Magnesium hexafluorosilicate(18972-56-0):
Magnesium hexafluorosilicate(18972-56-0) has a melting point of 120°C (dec.).
The chemical synonyms of Magnesium hexafluorosilicate(18972-56-0) are eulavasm;fluosilicatedemagnesium;MagnesiumfluosilicateHexahyd;Magnesiumhexafluorosilicate(2-)hexahydrate;Magnesiumsiliconhexafluoridehexahydrate;Silicate(2-),hexafluoro-,magnesium,hexahydrate;MAGNESIUM SILICOFLUORIDE;MAGNESIUM SILICOFLUORIDE HEXAHYDRATE
The molecular structure of Magnesium hexafluorosilicate(18972-56-0):
Toxicity Data With Reference
| 1. | orl-gpg LD50:200 mg/kg | 28ZEAL Pesticide Index. 4 (1969),265. | ||
| 2. | scu-frg LDLo:420 mg/kg | CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. 124 (1937),133. |
Safety Profile
Poison by ingestion. Moderately toxic by subcutaneous route. When heated to decomposition it emits toxic fumes of F−. See also FLUORIDES and MAGNESIUM COMPOUNDS.
Risk Statements 25
Safety Statements 24/25-45
RIDADR 2853
HazardClass 6.1
PackingGroup III
Risk Statements 25
Safety Statements 24/25-45
RIDADR 2853
HazardClass 6.1
PackingGroup III
Standards and Recommendations
OSHA PEL: TWA 2.5 mg(F)/m3
ACGIH TLV: TWA 2.5 mg(F)/m3; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.
NIOSH REL: TWA 2.5 mg(F)/m3
ACGIH TLV: TWA 2.5 mg(F)/m3; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.
NIOSH REL: TWA 2.5 mg(F)/m3
Specification
Storage
Store in a cool, dry location in a tightly sealed container. Corrosive area.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Incompatibilities
Reacts with acids evolving HF and SiF4, irritating and corrosive gases.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.
Store in a cool, dry location in a tightly sealed container. Corrosive area.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Incompatibilities
Reacts with acids evolving HF and SiF4, irritating and corrosive gases.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.