Magnesium fluosilicate Chemical Properties

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

Magnesium fluosilicate (16949-65-8)

Safety Information

Hazard Codes 

T

Risk Statements 

25

Safety Statements 

24/25-45

RIDADR 

UN2853

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

Toxicity

LD in guinea pigs (mg/kg): 200 orally, 400 s.c. (Waldbott)

MSDS

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Magnesium fluosilicate Usage And Synthesis

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.

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.

Air & Water Reactions

Water soluble.

Reactivity Profile

Magnesium fluosilicate gives basic aqueous solutions. Reacts with acids. Does not usually react as either oxidizing agents or reducing agents.

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.

Flammability and Explosibility

Non flammable

Safety Profile

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

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.

Magnesium fluosilicate(16949-65-8)Related Product Information

• Seractide
• Zinc silicofluoride
• Magnesium sulfate
• Magnesium stearate
• Magnesium sulfate heptahydrate
• Magnesium silicate
• Hexafluorosilicic acid
• Magnesium chloride hexahydrate
• Sodium fluorosilicate
• Potassium fluorosilicate
• Magnesium oxide
• Ammonium hexafluorosilicate
• Magnesium hexafluorosilicate hexahydrate
• Magnesium
• Magnesium fluorosilicate
• SODIUM MAGNESIUM SILICATE
• SODIUM MAGNESIUM FLUOROSILICATE
• Magnesium fluosilicate