ChemicalBook--->CAS DataBase List--->16949-65-8

16949-65-8

16949-65-8 Structure

16949-65-8 Structure
IdentificationMore
[Name]

Magnesium fluosilicate
[CAS]

16949-65-8
[Synonyms]

Magnesium fluorosilicate
MAGNESIUM FLUOSILICATE
MAGNESIUM HEXAFLUOROSILICATE
MAGNESIUM SILICOFLUORIDE
fluosilicicacidmagnesiumsalt
hexafluorosilicate(2-)magnesium(1:1)
hexafluoro-silicate(2-magnesium(1:1)
magnesiumhexafluorosilicate(2-)
magnesiumsilicofluoride(mgsif6)
Silicate(2-),hexafluoro-,magnesium(1:1)
siliconfluoridemagnesiumsalt
Silicate(2-),hexafluoro-,magnesium
MAGNESIUM SILICOFLUORIDE 98%
Magnesiumhexafluorsilikat
hexafluorosilicate magnesium
MAGNESIUMHEXAFLUOSILICATE
[EINECS(EC#)]

241-022-2
[Molecular Formula]

F6MgSi
[MDL Number]

MFCD00016196
[Molecular Weight]

166.38
[MOL File]

16949-65-8.mol
Chemical PropertiesBack Directory
[Melting point ]

120°C
[Boiling point ]

>120°C
[density ]

1.788
[vapor pressure ]

0.001Pa at 25℃
[form ]

Powder
[Specific Gravity]

1.788
[Water Solubility ]

498.4g/L at 18.3℃
[Hydrolytic Sensitivity]

2: reacts with aqueous acid
[LogP]

0 at 25℃
[CAS DataBase Reference]

16949-65-8(CAS DataBase Reference)
[EPA Substance Registry System]

16949-65-8(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

T
[Risk Statements ]

R25:Toxic if swallowed.
[Safety Statements ]

S24/25:Avoid contact with skin and eyes .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
[RIDADR ]

UN2853
[TSCA ]

Yes
[HazardClass ]

6.1
[PackingGroup ]

III
[Safety Profile]

Moderately toxic by ingestion. When heated to decomposition it emits toxic vapors of magnesium and F-.
[Toxicity]

LD in guinea pigs (mg/kg): 200 orally, 400 s.c. (Waldbott)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Hydrogen fluoride-->Magnesium oxide-->Quartz-->Hexafluorosilicic acid-->Magnesium carbonate-->Magnesium hydroxide
Hazard InformationBack Directory
[General Description]

Crystalline solid. Decomposes at 120°C. Contact may cause slight irritation to skin, eyes, and mucous membranes. May be slightly toxic by ingestion. Used to make other chemicals.
[Reactivity Profile]

MAGNESIUM FLUOROSILICATE(16949-65-8) gives basic aqueous solutions. Reacts with acids. Does not usually react as either oxidizing agents or reducing agents.
[Air & Water Reactions]

Water soluble.
[Health Hazard]

Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
[Fire Hazard]

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Containers may explode when heated. Runoff may pollute waterways.
[Description]

Magnesium silicofluoride is a white crystallinesolid. Molecular weight= 274.52. Hazard Identification(based on NFPA-704 M Rating System): Health 3,Flammability 0, Reactivity 0. Soluble in water.
[Flammability and Explosibility]

Nonflammable
[Potential Exposure]

Magnesium silicofluoride is used as aconcrete hardener and waterproofing agent. Hexafluoro isused as an agricultural chemical.
[First aid]

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
[storage]

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area away from strong acids (such as hydrochloric, sulfuric, and nitric).
[Shipping]

This compound requires a shipping label of“POISONOUS/TOXIC MATERIALS.” It falls in HazardClass 6.1 and Packing Group III.
[Incompatibilities]

Strong acids.
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

magnesium silicofluoride(16949-65-8).msds
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