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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 crystalline compound. The relative densities is 2.02, melting point 1090 and sublimation in nitrogen is 1250. Insoluble in benzene; Soluble in dilute base. Hydrolysis and Ammonolysis were caused by water, ethanol or liquid ammonia. Reaction of alkali metalsulfides with thiosilicates.
siS2 decomposes easily to produce hydrogen sulfide, just like other silicosulfides such as bis (trimethylsilylsulfides). In liquid ammonia it was reported to form the imide Si (NH)2 as well as NH4SH. Recent reports, however, have identified (NH4)2[SIS3(NH3)]*2NH3 containing the tetrahedral orthosilicate anion SIS3(NH3).
By reaction with ethanol, tetraethyl and orthosilicate were produced. Alcoholysis was carried out with tert-butyl ethanol to produce tri (tertbutyl), silicon mercaptan.
3 (CH3)3COH + Sis2 -[(CH3)3CO] 3Sish + H2S
Sulphosilicate can be produced by sulfidation of sodium sulfide with magnesium 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. Heat the quartz tube with a little 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 the silicon-sulfur mixture at 5x103MPa 700.

2. Add sulfur to decompose the silicon at a lower heat. By heating 96g sulfur and 39g Si(SC2H5)4 for 10 minutes 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 sulfate ester or sulfate, 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 a 12-year history of providing high-quality nanomaterials. These include boride powders, graphite or sulfide particles, as well as 3D printing powders.
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
Exact 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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