13759-10-9

Basic information

• Product Name: SILICON DISULFIDE
• Synonyms: SILICON SULFIDE;SILICON(IV) SULFIDE;SILICON DISULFIDE;siliconsulfide(sis2);silicon disulphide;Silicon monosulfide;Silicon Silicon;Silicon(Ⅳ) Sulfide
• CAS NO: 13759-10-9
• Molecular Formula: S₂Si
• Molecular Weight: 92.22
• EINECS: 237-344-8
• Mol File: 13759-10-9.mol
• Article Data: 4

Chemical Properties

• Melting Point: 1090°C subl.
• Boiling Point: 1090°C
• Appearance: /white rhombohedral crystals
• Density: 2,02 g/cm3
• Water Solubility: Decomposes in water
• Sensitive: Moisture Sensitive
• Merck: 14,8494
• CAS DataBase Reference: SILICON DISULFIDE(CAS DataBase Reference)
• NIST Chemistry Reference: SILICON DISULFIDE(13759-10-9)
• EPA Substance Registry System: SILICON DISULFIDE(13759-10-9)

Safety Data

• RIDADR: UN3134
• TSCA: Yes
• HazardClass: 4.3
• PackingGroup: II
• Hazardous Substances Data: 13759-10-9(Hazardous Substances Data)

Usage

Chemical Properties

Different sources of media describe the Chemical Properties of 13759-10-9 differently. You can refer to the following data:
1. sublimed cotton-like fibrous clumps with 99.9% purity; white, fibrous mass or needles; rhomb, a=0.560 nm, b=0.553 nm, c=0.975 nm; decomposes in moist air to evolve H2S; burns if ignited by a flame [MER06] [CIC73] [CER91]
2. silicon disulfide, SiS2, white crystals, formed by heating amorphous silicon and sulfur, and then subliming, reactive with water.

InChI:InChI=1/H2S2Si/c1-3-2/h3H2

Synthetic route

carbon oxide sulfide (463-58-1) + silicon (7440-21-3) → silicon disulfide (13759-10-9)

Conditions	Yield
With H2S In neat (no solvent) Irradiation (UV/VIS); (Ar); H2S was passed over heated Si at about 1500 K, formed SiS and a mixt. of COS and Ar (200:1) was cocondensed about 30 min on a helium-cooled Cu surface and photolysed with a medium pressure Hg lamp (H2O filter); not isolated, detected IR spect.;

silicon monosulfide (12504-41-5) + carbon oxide sulfide (463-58-1) → silicon disulfide (13759-10-9)

Conditions	Yield
In solid matrix byproducts: CO; other Radiation; 20-25 K, CH4 matrix, photolysis (10 min, Hg lamp); not isolated, followed by Raman spectroscopy;

silicon monosulfide (12504-41-5) + fluorine (7782-41-4) → silicon disulfide (13759-10-9) + difluorosilanethione (110661-62-6) + F3SiSH (95665-02-4) + SiS*F2 + silicon tetrafluoride (7783-61-1)

Conditions	Yield
In solid matrix Ar matrix; IR-monitoring;

sulfur (7704-34-9) + silicon (7440-21-3) → silicon disulfide (13759-10-9)

Conditions	Yield
at 600℃; for 30h; Sealed tube;

silicon disulfide (13759-10-9) + silicon (7440-21-3) → silicon monosulphide

Conditions	Yield
In gas heating mixt. of educts (1000°C, aluminium tube furnace, heating rate 2 °C/min, 5 Torr Ar); detd. by emission spectroscopy;

silicon disulfide (13759-10-9) → disulfur (23550-45-0) + silicon monosulfide (12504-41-5)

Conditions	Yield
In neat (no solvent) heating (1300 K);

tetraphosphorus decasulfide (15857-57-5) + silicon disulfide (13759-10-9) + lithium sulfide + phosphorus pentoxide (16752-60-6) + silica gel (112926-00-8, 7631-86-9) → Li10SiP2S11.1O0.9

Conditions	Yield
Stage #1: tetraphosphorus decasulfide; silicon disulfide; lithium sulfide; phosphorus pentoxide; silica gel for 1h; Milling; Glovebox; Inert atmosphere; Stage #2: at 549.84℃; under 75007.5 Torr; for 48h; Glovebox; Inert atmosphere; Sealed tube;

Upstream product

• 463-58-1 carbon oxide sulfide 
• 7440-21-3 silicon 
• 12504-41-5 silicon monosulfide 
• 7704-34-9 sulfur 
• 7782-41-4 fluorine 

Related news

A fluorine bomb calorimetric determination of the standard molar enthalpy of formation of SILICON DISULFIDE (cas 13759-10-9) SiS2(cr) at the temperature 298.15 K. Enthalpies of dissociation of Si–S bonds09/29/2019

A synthesis of high-purity silicon disulfide SiS 2 is described, and the F.t.-Raman spectrum of the solid is reported for the first time. The standard massic energy of reaction of SiS 2 (cr) with fluorine was measured in a bomb calorimeter. The combustion reaction was shown to pr...detailed

From Silylone to an Isolable Monomeric SILICON DISULFIDE (cas 13759-10-9) Complex10/01/2019

The synthesis and characterization of the first bis‐N‐heterocyclic carbene stabilized monomeric silicon disulfide (bis‐NHC)SiS22 (bis‐NHC=H2C[{NC(H)C(H)N(Dipp)}C:]2, Dipp=2,6‐iPr2C6H3) is reported. Compound 2 is prepared in 89 % yield from the reaction of the zero‐valent silicon complex (′...detailed

Relevant articles and documents

Matrix IR Spectrum and ab Initio SCF Calculations of Molecular SiS2

In solid argon molecular SiS2 is generated by a reaction of SiS with S atoms.The antisymmetric stretching vibration νas(SiS) is observed at 918 cm-1.Bonding and structure (force constants from experimentally observed frequencies and results from ab initio SCF calculations) of SiS2 are compared with that of the similar molecules: CO, CS, CO2, COS, CS2, SiO, SiS, SiO2, and SiOS.

Difluorosilanethione F2Si=S by flash vacuum thermolysis of (F3Si)2S and by reaction of SiS with F2 - Matrix studies and ab initio calculations

Difluorosilanethione F2Si=S (1) has been synthesized by Flash Vacuum Pyrolysis of (F3Si)2S at ≥ 500 °C and trapped in an Ar matrix. Furthermore, 1 has been obtained by codeposition of SiS and F2/Ar and by pyrolysis of a matrix-isolated SiS2-XeF2 complex under cryogenic conditions. All six vibrational fundamentals of 1 have been observed in the matrix IR spectrum. Ab initio calculations at the MP2 and CCSD(T) levels using large basis sets have been performed. These calculations have guided the detection of 1 and the vibrational assignment. The best estimate of the structure of 1 with C(2v) symmetry is: r(Si=S) 191.1(1) pm, r(SiF) 156.1(1) pm, angle(FSiF) 103.3(2)°.