13803

Schwefel

99.5-100.5%, puriss., meets analytical specification of Ph. Eur., BP, USP, precipitated

• Empirische Formel (Hill-System): S
• CAS-Nummer: 7704-34-9
• Molekulargewicht: 32.07
• EG-Nummer: 231-722-6
• MDL-Nummer: MFCD00085316
• UNSPSC-Code: 12141912
• PubChem Substanz-ID: 329750348
• NACRES: SB.54

Eigenschaften

• Dampfdichte: 8.9 (vs air)
• Dampfdruck: 1 mmHg ( 183.8 °C); 10 mmHg ( 246 °C)
• Qualität: puriss.; meets analytical specification of Ph. Eur., BP, USP; precipitated
• Assay: 99.5-100.5%
• Form: solid
• Selbstzündungstemp.: 450 °F
• Widerstandsfähigkeit: 2E23 μΩ-cm, 20°C
• Verunreinigungen: acidity or alkalinity, complies; residual solvents, complies; ≤0.01% free alkali (as NaOH); ≤0.02% free acid (as H₂SO₄); ≤0.5% water (Karl Fischer)
• Glührückstand: ≤0.2% (as SO₄); ≤0.3%
• bp: 444.7 °C (lit.)
• mp (Schmelzpunkt): 112.8 °C (rhombic) (lit.); 117-120 °C (lit.); 119.0 °C (monoclinic) (lit.)
• Löslichkeit: carbon disulfide: in accordance 1 g/5mL
• Anionenspuren: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg; sulfide (S^2-): ≤10 mg/kg
• Kationenspuren: As: ≤40 mg/kg
• Eignung: complies for appearance of solution; corresponds for odor
• SMILES String: [S]
• InChI: 1S/S
• InChIKey: NINIDFKCEFEMDL-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Sulfur is present in abundant quantities in marine and freshwater sediments. It exists in the form of various sulfur compounds 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.
Sulfur is naturally present in cysteine and methionine amino acids, which can be detected by inductively coupled plasma mass spectrometry(ICP-MS). It is also an important element required for plant growth, since it is useful in lowering the pH of the soil.

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H315
• P-Sätze: P264 - P280 - P302 + P352 - P332 + P313 - P362 + P364
• Gefahreneinstufungen: Skin Irrit. 2
• Lagerklassenschlüssel: 4.1B - Flammable solid hazardous materials
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable