84683

Sulfur

purum p.a., ≥99% (T)

• Empirický vzorec (Hillův zápis): S
• Číslo CAS: 7704-34-9
• Molekulová hmotnost: 32.07
• EC Number: 231-722-6
• MDL number: MFCD00085316
• UNSPSC Code: 12141912
• PubChem Substance ID: 329769307
• NACRES: NA.21
• assay: ≥99% (T)
• form: powder

Vlastnosti

• vapor density: 8.9 (vs air)
• Quality Level: 100
• vapor pressure: 1 mmHg ( 183.8 °C); 10 mmHg ( 246 °C)
• grade: purum p.a.
• assay: ≥99% (T)
• form: powder
• autoignition temp.: 450 °F
• resistivity: 2E23 μΩ-cm, 20°C
• ign. residue: ≤0.2%
• bp: 444.7 °C (lit.)
• mp: 112.8 °C (rhombic) (lit.); 117-120 °C (lit.); 119.0 °C (monoclinic) (lit.)
• anion traces: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• cation traces: Ca: ≤50 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤100 mg/kg; Na: ≤100 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• SMILES string: [S]
• InChI: 1S/S
• InChI key: NINIDFKCEFEMDL-UHFFFAOYSA-N

Popis

General description

Sulfur is a chalcogen (ore forming element). It is present in abundant quantities in marine and freshwater sediments. It exists in various forms such as pyrite, acid volatile sulfides, elemental sulfur, sulfates and organic sulfur. Quantitative estimation of reduced inorganic sulfur compounds in modern sediments and shales by a chromium reduction technique has been described. Elemental sulfur is employed for the synthesis of arsenic monosulfide and benzothiazole.

Application

Sulfur has been employed as a reactant in the preparation of Cu-doped iron sulfides.

Bezpečnostní informace

• 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