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Magnesium hexafluorosilicate hexahydrate

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Magnesium hexafluorosilicate hexahydrate

EINECS 241-022-2
CAS No. 18972-56-0 Density 1.79 g/cm3
PSA 9.23000 LogP 2.07610
Solubility Melting Point 120 °C (dec.)
Formula MgSiF6.6(H2O) Boiling Point 100oC at 760 mmHg
Molecular Weight 274.47 Flash Point
Transport Information UN 2853 Appearance White powder
Safety 24/25-45 Risk Codes 25
Molecular Structure Molecular Structure of 18972-56-0 (Silicate(2-),hexafluoro-, magnesium (1:1), hexahydrate (9CI)) Hazard Symbols 25:;
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;

 

Magnesium hexafluorosilicate hexahydrate Chemical Properties

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 hexahydrate 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.

Magnesium hexafluorosilicate hexahydrate 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

Magnesium hexafluorosilicate hexahydrate 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

Magnesium hexafluorosilicate hexahydrate 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.

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