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Calcium hexafluorosilicate(16925-39-6)

Calcium hexafluorosilicate(16925-39-6)
Product IdentificationBack to Contents
【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 PropertiesBack to Contents
【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 MeasuresBack to Contents
【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 IdentificationBack to Contents
【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 ProtectionBack to Contents
【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 MeasuresBack to Contents
【Fire Fighting】

Use method most appropriate to fight surrounding fire.
【Fire Potential】

Non-Combustible
Accidental Release MeasuresBack to Contents
【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 InformationBack to Contents
【UN Number】

2856
【Hazard Class】

6.1
Stability and ReactivityBack to Contents
【Combustion Products】

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