Sulfide Powder

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High Purity Silicon Sulfide SiS2 Powder CAS 13759-10-9, 99.99%

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SiS2 is a molecular formula for silicon sulfide. The crystals of white fibrous orthorhombic and tetragonal crystals remain stable under normal pressure and temperature.Particle size : 100mesh
Purity: 99.99%

Product Name: Silicon Sulfide; silicon sulphide
Silicon Sulfide chemical formula: SiS2
Silicon Sulfide molecular weight: 92.21
Silicon Sulfide density: 1.853 g/cm3
Silicon Sulfide melting point: 1090
Silicon Sulfide boiling point: 1130
Silicon Sulfide CAS NO. : 13759-10-9
Silicon Sulfide Information:
SiS2 is a molecular formula for silicon sulfide. When moisture is present, white fibrous orthorhombic and tetragonal Crystals decompose to SiO2 andH2S. It is a flammable substance when heated.

Silicon Sulfide SiS2 Particles:
Silicon-sulfide, an inorganic chemical compound with the formula SiS2, is a colorless acicular crystal. SiS2 is a colorless, acicular crystal. Its relative density equals 2.02, its melting point 1090, and at 1250 it sublimates to nitrogen. Insoluble in benzene; Soluble in dilute base. Water, ethanol or liquid ammonia induced hydrolysis and ammonolysis. Reaction of alkali metalsulfides with thiosilicates.
siS2 decomposes easily to produce hydrogen sulfide, just like other silicosulfide substances, such a bis (trimethylsilyl sulfides). In liquid ammonia it was reported that this compound forms the imide Si (NH)2 as well as NH4SH. Recent reports, however, have identified (NH4)2[SIS3(NH3)]*2NH3 a product containing tetrahedral orthosilicate anion SIS3(NH3).
By reaction with ethanol, tetraethyl orthsilicate was synthesized. Alcoholysis was carried out with a large amount of tertbutyl-alcohol to produce tri (tertbutyl-silicate) silicon mercaptan.
3 (CH3)3COH + Sis2 -[(CH3)3CO] 3Sish + H2S
Sulphosilicate can be produced by a reaction between sodium sulfide (sulfur dioxide), magnesium sulfide (sulfur dioxide) and aluminum sulfide.

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What is the production process of Silicon Sulfide (SiS2) Powder?
1. Burn aluminum powder in the crucible with extra sulfur. The aluminum sulfide mixture is crushed with a little excess silica. Mixture is put in a shingle. Place the shingle into a quartz tube and heat it while injecting some dry nitrogen. The reaction begins around 1100. At 1200 to 1300, the sublimated Sis2 will adhere to the lower temperature region of the quartz tube. After purification, it's sublimated in nitrogen or vacuum. You can prepare tetragonal Sis2 by heating a mixture of silicon and sulfate at 5x103MPa 700.

2. Add sulfur to decompose the silicon at a low temperature. By heating 96g sulfur and 39g Si(SC2H5)4 for 10min at 200°C, you can produce si-disulfide. The latter is then dissolved in benzene.

Applications Silicon Sulfide SiS2 SiS2 Powder
Silicon sulfide can be used as a source of silicon that is compatible with sulfates. Sulfate, also known as a sulfate ester, is formed when one or more hydrogens are replaced with metal.

Storage condition of Silicon Sulfide (SiS2) Powder:
Silicon Sulfide SiS2 is affected by dampness, which will have an adverse effect on the performance of SiS2 powder and its use. Silicon Sulfide SiS2 must be packed in vacuum and kept in a room that's cool and dry. Silicon Sulfide SiS2 should not be exposed to stress.

Packing & Shipping Silicon Sulfide (SiS2) Powder:
The packing is dependent on the amount of Silicon Sulfide SiS2 POWDER.
Silicon Sulfide (SiS2) Powder packaging: vacuum packed, 100g,500g or 1kg/bag; 25kg/barrel. Or as per your request.
Silicon Sulfide SiS2 POWDER shipping: Could be shipped by air or sea as soon after payment receipt.


Technology Co. Ltd., () is an established global chemical supplier and manufacturer, with over 12 years' experience in providing high-quality nanomaterials. These include boride powders, graphite or nitride particles, 3D-printing powders, etc.
We are happy to answer any questions you may have. (brad@ihpa.net)

Silicon Sulfide Properties

Alternative Names silicon(IV) sulfide, silicon disulfide, silicon(IV) sulphide, SiS2 powder
CAS Number 13759-10-9
Compound Formula SiS2
Molecular Mass 92.22
Appearance White Powder
Melting Point 1090
Boiling Point N/A
Density 1.85-2.02 g/cm3
Solubility In H2O Decomposes
Exacts Mass 91.921068

Safety Information about Silicon Sulfide

Sign Word Danger
Hazard Statements H261-H300-H315-H319-H335
Hazard Codes F.
Risk Codes N/A
Safety Declarations N/A
Transport Information UN3134 4.3.3+6.1/PG II

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