Supplier Product Identification Physical and Chemical Properties First Aid Measures Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Transport Information Stability and Reactivity
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Calcium hexafluorosilicate(16925-39-6)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Transport Information Stability and Reactivity

Product Identification

Product Name
Calcium hexafluorosilicate
Synonyms
Calcium fluorosilicate
Calcium fluosilicate
Calcium silicofluoride
Silicate(2-), hexafluoro-, calcium (1:1)
CAS
16925-39-6
Formula
CaF6Si
Molecular Weight
182.16
EINECS
240-991-9
RTECS
EW4025000
RTECS Class
Other
Merck
12,1714
Beilstein/Gmelin
19406 (G)

Physical and Chemical Properties

Appearance
Colorless tetragonal crystals
Solubility in water
Soluble
Density
2.622 g/cm3 (20 C)
Usage
Preservative in wood industry, hardener in concrete, opaliger in glass and porcelain enamel. Produce silicon tetrafluoride and calcium fluoride. .

First Aid Measures

Ingestion
Seek medical assistance.
Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
Skin
Remove and isolate contaminated clothing and shoes. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
Eyes
Immediately flush with running water for at least 20 minutes.

Hazards Identification

Inhalation
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Effects of contact or inhalation may be delayed.
Skin
Avoid any skin contact. See Inhalation.
Eyes
See Inhalation.
UN (DOT)
2856

Exposure Controls/Personal Protection

Personal Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Exposure limit(s)
NIOSH: 10H TWA 2.5 mg(F)/m3

Fire Fighting Measures

Fire Fighting
Use method most appropriate to fight surrounding fire.
Fire Potential
Non-Combustible

Accidental Release Measures

Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.

Transport Information

UN Number
2856
Hazard Class
6.1

Stability and Reactivity

Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.
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