13803

硫黄

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

• 実験式（ヒル表記法）: S
• CAS番号: 7704-34-9
• 分子量: 32.07
• EC Number: 231-722-6
• MDL番号: MFCD00085316
• UNSPSCコード: 12141912
• PubChem Substance ID: 329750348
• NACRES: SB.54

特性

• 蒸気密度: 8.9 (vs air)
• 蒸気圧: 1 mmHg ( 183.8 °C); 10 mmHg ( 246 °C)
• グレード: puriss.
• アッセイ: 99.5-100.5%
• 形状: solid
• 自己発火温度: 450 °F
• 品質: meets analytical specification of Ph. Eur., BP, USP; precipitated
• 抵抗性: 2E23 μΩ-cm, 20°C
• 不純物: acidity or alkalinity, complies; residual solvents, complies; ≤0.01% free alkali (as NaOH); ≤0.02% free acid (as H₂SO₄); ≤0.5% water (Karl Fischer)
• 強熱残分: ≤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.)
• 溶解性: carbon disulfide: in accordance 1 g/5mL
• 微量陰イオン: chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg; sulfide (S^2-): ≤10 mg/kg
• 微量陽イオン: As: ≤40 mg/kg
• 適合性: complies for appearance of solution; corresponds for odor
• SMILES記法: [S]
• InChI: 1S/S
• InChI Key: NINIDFKCEFEMDL-UHFFFAOYSA-N

詳細

詳細

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.

安全性情報

• ピクトグラム: GHS07
• シグナルワード: Warning
• 危険有害性情報: H315
• 注意書き: P264 - P280 - P302 + P352 - P332 + P313 - P362 + P364
• 危険有害性の分類: Skin Irrit. 2
• 保管分類コード: 4.1B - Flammable solid hazardous materials
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable