CALCIUM SILICIDE

Base Information

• Chemical Name: CALCIUM SILICIDE
• CAS No.: 12013-56-8
• Molecular Formula: CaSi₂
• Molecular Weight: 96.249
• European Community (EC) Number: 234-588-7
• UN Number: 1405,1405 (Calcium silicide)
• Wikipedia: Calcium_disilicide
• Mol file: 12013-56-8.mol

Synonyms:Calcium silicide;Calcium silicon (CaSi₂);

Chemical Property of CALCIUM SILICIDE

Chemical Property:

• Appearance/Colour: Whitish or dark grey to black solid
• Melting Point: 1020 °C
• PSA: 0.00000
• Density: 2.5 g/cm³
• LogP: -0.76160
• Sensitive.: Moisture Sensitive
• Water Solubility.: Insoluble in cold water, decomposes in hot water
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 95.9164439
• Heavy Atom Count: 3
• Complexity: 2.8
• Transport DOT Label: Dangerous When Wet

Purity/Quality:

98%min ^*data from raw suppliers

Calcium silicide, 90% (~4% Fe, ~6% Ba+Al) ^*data from reagent suppliers

Safty Information:

• Pictogram(s): F
• Hazard Codes: F
• Statements: 15
• Safety Statements: 8-43

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: [Si-].[Si-].[Ca+2]
• 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.
• 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.
• Uses: 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 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.

Technology Process of CALCIUM SILICIDE

There total 12 articles about CALCIUM SILICIDE which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

silica gel (112926-00-8,7631-86-9) + calcium chloride (14336-71-1) → calcium silicide (12013-56-8) + calcium monosilicide (12638-76-5,12737-18-7) + silicon (7440-21-3)

Guidance literature:

In further solvent(s); byproducts: O(2-); Electrolysis; all manipulations under Ar atm.; molten CaCl2 used as electrolyte in glassy carbon crucible, electrodes: SiO2 contacting, graphite counter and Ag(+)/Ag reference; redn. of SiO2 investigated at 1123 K by potentiostatic method at 0.35-1.30 V for 1 h; potential values calcd. with Ca(2+)/Ca ref. electrode; products analyzedand characterized by XRD, SEM and EPMA;

DOI:10.1016/j.jpcs.2004.06.037

Reference yield:

calcium monosilicide (12638-76-5,12737-18-7) → calcium silicide (12013-56-8) + calcium (7440-70-2)

Guidance literature:

In neat (no solvent); decompn. by heating near up to incongruent melting point of CaSi2;;

Reference yield:

silica gel (112926-00-8,7631-86-9) + calcium (7440-70-2) → calcium silicide (12013-56-8)

Guidance literature:

In neat (no solvent); various conditions;;

upstream raw materials:

calcium

silicon

silica gel

calcium chloride

Downstream raw materials:

Dichloromethylsilane

Methyltrichlorosilane

tetrachlorosilane

dimethylsilicon dichloride