Tetraarsenic tetrasulfide

Base Information

• Chemical Name: Tetraarsenic tetrasulfide
• CAS No.: 12044-79-0
• Molecular Formula: AsS
• Molecular Weight: 106.988
• UNII: ZIK02R2PSD
• DSSTox Substance ID: DTXSID50153717
• Wikipedia: Tetraarsenic tetrasulfide
• Wikidata: Q27295581
• Mol file: 12044-79-0.mol

Synonyms:As4S4 cpd;tetraarsenic tetrasulfide

Chemical Property of Tetraarsenic tetrasulfide

Chemical Property:

• Melting Point: ^=307℃
• Boiling Point: °Cat760mmHg
• Flash Point: °C
• PSA: 38.80000
• Density: g/cm³
• LogP: -0.00030
• Water Solubility.: Insoluble in water. Soluble in acids and alkalis.
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 427.57466
• Heavy Atom Count: 8
• Complexity: 88

Purity/Quality:

98%,99%, ^*data from raw suppliers

Arsenic(II) sulfide, tech. 90% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Metals -> Arsenic Compounds, Inorganic
• Canonical SMILES: S1[As]2S[As]3[As]1S[As]2S3
• Uses: Arsenic(II) sulfide is used as an primary and secondary intermediate.

Technology Process of Tetraarsenic tetrasulfide

There total 2 articles about Tetraarsenic tetrasulfide 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: 32.2%

cobaltite (1303-15-7) → arsenic sulfide (12044-79-0) + Co2AsS + ower cobalt arsenide + sulfur (7704-34-9)

Guidance literature:

In neat (no solvent); upon heating cobalt glance loses 30 - 40 % of its weight and forms, under generation of 32.2 % AsS, Co2AsS and later Co2As; S is escaping;;

Reference yield:

silver (7440-22-4) + arsenic trisulfide → arsenic sulfide (12044-79-0) + trisilver thioarsenate(III)

Guidance literature:

In glycerol; at 154°C;;

Reference yield:

realgar (12044-79-0) + nitric acid (7697-37-2,78989-43-2) → orthoarsenic acid (7778-39-4,121471-47-4,1327-52-2)

Guidance literature:

In nitric acid; byproducts: H2SO4; aq. HNO3; stirring; strong HNO3 soln.;; evaporation of HNO3, removal of H2SO4 on addition of CaO or CaCO3;;

upstream raw materials:

silver

cobaltite

Downstream raw materials:

orthoarsenic acid