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HomeProduct name listCALCIUM SILICIDE

CALCIUM SILICIDE

  • CAS NO.:12013-56-8
  • Empirical Formula: CaSi2
  • Molecular Weight: 96.25
  • MDL number: MFCD00015977
  • EINECS: 234-588-7
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-10-17 17:11:54
CALCIUM SILICIDE Structural

What is CALCIUM SILICIDE?

Description

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.

Chemical properties

METAL PIECES

Physical properties

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.

The Uses of CALCIUM SILICIDE

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

The Uses of CALCIUM SILICIDE

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.

Properties of CALCIUM SILICIDE

Melting point: 1020 °C
Density  2,5 g/cm3
solubility  insoluble in cold H2O; reacts with hotH2O; soluble in acid solutions
form  pieces
color  Gray
Specific Gravity 2.5
Water Solubility  Insoluble in cold water, decomposes in hot water
Sensitive  Moisture Sensitive
Hydrolytic Sensitivity 2: reacts with aqueous acid
CAS DataBase Reference 12013-56-8
EPA Substance Registry System Calcium silicide (CaSi2) (12013-56-8)

Safety information for CALCIUM SILICIDE

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
GHS Hazard Statements H261:Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases
Precautionary Statement Codes P223:Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P231+P232:Handle under inert gas. Protect from moisture.
P370+P378:In case of fire: Use … for extinction.
P501:Dispose of contents/container to..…

Computed Descriptors for CALCIUM SILICIDE

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