213292

Sulfur

99.998% trace metals basis

• Sinónimos: sulfur powder
• Fórmula empírica (notación de Hill): S
• Número de CAS: 7704-34-9
• Peso molecular: 32.07
• EC Number: 231-722-6
• MDL number: MFCD00085316
• UNSPSC Code: 12141912
• PubChem Substance ID: 24852677
• NACRES: NA.23

Propiedades

• vapor density: 8.9 (vs air)
• vapor pressure: 1 mmHg ( 183.8 °C); 10 mmHg ( 246 °C)
• assay: 99.998% trace metals basis
• form: powder or flakes
• autoignition temp.: 450 °F
• resistivity: 2E23 μΩ-cm, 20°C
• bp: 444.7 °C (lit.)
• mp: 112.8 °C (rhombic) (lit.); 117-120 °C (lit.); 119.0 °C (monoclinic) (lit.)
• density: 2.07 g/mL at 25 °C
• SMILES string: [S]
• InChI: 1S/S
• InChI key: NINIDFKCEFEMDL-UHFFFAOYSA-N

Descripción

General description

Elemental sulfur exists in thirty different solid allotropes of which orthorhombic sulfur is the only thermodynamically stable form under normal temperature and pressure. It dissolves in a number of organic solvents and forms a large number of oxyacids. Sulfur is generally highly reactive; the S8 ring of elemental sulfur is easily broken by a number of nucleophilic reactants. The hydroxyl ions react with S at about 100^oC.

Application

It finds applications in Li-S polymer batteries and as semiconductor-sensitizer layer CdS/CdSe/ZnS for solar cells.

Información de seguridad

• pictograms: GHS07
• signalword: Warning
• hcodes: H315
• pcodes: P264 - P280 - P302 + P352 - P332 + P313 - P362 + P364
• Hazard Classifications: Skin Irrit. 2
• Storage Class: 4.1B - Flammable solid hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type P3 (EN 143) respirator cartridges