13803

Sulfur

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

• 실험식(Hill 표기법): S
• CAS Number: 7704-34-9
• Molecular Weight: 32.07
• EC Number: 231-722-6
• MDL number: MFCD00085316
• UNSPSC 코드: 12141912
• PubChem Substance ID: 329750348
• NACRES: SB.54

속성

• vapor density: 8.9 (vs air)
• Quality Level: 100
• vapor pressure: 1 mmHg ( 183.8 °C); 10 mmHg ( 246 °C)
• grade: puriss.
• 분석: 99.5-100.5%
• 형태: solid
• autoignition temp.: 450 °F
• 품질: meets analytical specification of Ph. Eur., BP, USP; precipitated
• 저항도: 2E23 μΩ-cm, 20°C
• 불순물: acidity or alkalinity, complies; residual solvents, complies; ≤0.01% free alkali (as NaOH); ≤0.02% free acid (as H₂SO₄); ≤0.5% water (Karl Fischer)
• 무기 잔류물: ≤0.2% (as SO₄); ≤0.3%
• bp: 444.7 °C (lit.)
• mp: 112.8 °C (rhombic) (lit.); 117-120 °C (lit.); 119.0 °C (monoclinic) (lit.)
• solubility: carbon disulfide: in accordance 1 g/5mL
• 음이온 미량물: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg; sulfide (S^2-): ≤10 mg/kg
• 양이온 미량물: As: ≤40 mg/kg
• 적합성: complies for appearance of solution; corresponds for odor
• SMILES string: [S]
• InChI: 1S/S
• InChI key: NINIDFKCEFEMDL-UHFFFAOYSA-N

설명

일반 설명

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.

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H315
• 예방조치 성명서: P264 - P280 - P302 + P352 - P332 + P313 - P362 + P364
• Hazard Classifications: Skin Irrit. 2
• Storage Class Code: 4.1B - Flammable solid hazardous materials
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable