Calciumdisilicid

Bezeichnung:Calciumdisilicid

CAS-Nr12013-56-8

Englisch Name:CALCIUM SILICIDE

CBNumberCB1331217

SummenformelCaSi2

Molgewicht96.25

MOL-Datei12013-56-8.mol

Synonyma

Calciumdisilicid

Calciumdisilicid physikalisch-chemischer Eigenschaften

Schmelzpunkt	1020 °C
Dichte	2,5 g/cm³
Löslichkeit	insoluble in cold H2O; reacts with hotH2O; soluble in acid solutions
Aggregatzustand	pieces
Wichte	2.5
Farbe	Gray
Wasserlöslichkeit	Insoluble in cold water, decomposes in hot water
Sensitive	Moisture Sensitive
Hydrolytic Sensitivity	2: reacts with aqueous acid
CAS Datenbank	12013-56-8
EPA chemische Informationen	Calcium silicide (CaSi2) (12013-56-8)

Sicherheit

Kennzeichnung gefährlicher	F
R-Sätze:	15
S-Sätze:	8-43
RIDADR	UN 1405 4.3/PG 2
WGK Germany	3
TSCA	Yes
HazardClass	4.3
PackingGroup	II

Gefahreninformationscode (GHS)

CALCIUM SILICIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R15:Reagiert mit Wasser unter Bildung hochentzündlicher Gase.
S-Sätze Betriebsanweisung:
S8:Behälter trocken halten.
S43:Zum Löschen . . . (vom Hersteller anzugeben) verwenden (wenn Wasser die Gefahr erhöht, anfügen: "Kein Wasser verwenden").
Beschreibung
Calcium silicide has the molecular formula of Ca₂Si and the molecular weight of 96.2514 g/mol. This salt can be formed by the reaction of Ca metal, mixed with Si, at 850°C in an inert atmosphere.
Chemische Eigenschaften
METAL PIECES
Physikalische Eigenschaften
Calcium silicide, also called calcium disilicide, is an inorganic compound, a silicide of calcium. It is a whitish or dark gray to black solid matter with melting point between 700 and 935°C. It is insoluble in water, but may decompose when subjected to moisture, evolving hydrogen and producing calcium hydroxide. It decomposes in hot water. It is flammable and may ignite in air by producing silane that spontaneously ignites.
Verwenden
The uses of calcium silicide are many. Some of these include:
? Calcium silicide is used for manufacture of special metal alloys, e.g. for removing phosphorus and as a deoxidizer.
? In pyrotechnics, it is used as fuel to make special mixtures, e.g. for production of smokes, in flash compositions, and in percussion caps.
? Calcium silicide is used in the manufacture of certain initiatory, pyrotechnic and smoke compositions.
? The silicon and calcium alloy is mainly used as desulfurizing agent and deoxidizer for steel industry and casting industry.
? Calcium silicide has been found to be extremely corrosive to all metals including the refractory metals. It has been successfully contained in boron nitride for 36 h.
? The formation of calcium silicide (CaSi₂) intermetallic through the simultaneous reduction of calcium oxide from the electrolyte and of the silica pellet and reduction of dissolved carbon dioxide. C
Verwenden
It is an important raw material used in Pharmaceutical intermediates. It is an ideal compound of deoxidizer and desulfurizer which can be used in production of many types of stainless steel. It is also used as inoculants and additive in cast iron.

CALCIUM SILICIDE Upstream-Materialien And Downstream Produkte

Calciumdisilicid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

12013-56-8, CALCIUM SILICIDE Verwandte Suche:

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