barium(2+) ion sulfate

• ChemBase编号: 126034
• 分子式: BaO4S
• 平均质量: 233.3896
• 单一同位素质量: 233.85697648
• SMILES: [Ba+2].[O-]S(=O)(=O)[O-]
• Canonical SMILES: [O-]S(=O)(=O)[O-].[Ba+2]
• InChI: InChI=1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
• InChIKey: TZCXTZWJZNENPQ-UHFFFAOYSA-L

名称和登记号

名称

• IUPAC标准名: barium(2+) ion sulfate
• IUPAC传统名: barium(2+) ion sulfate
• 别名: 硫酸钡, Puratronic®; 重晶石; 硫酸钡; 硫酸钡; 硫酸钡, 沉淀型; Barium sulfate, Puratronic®; Barium sulfate; Barium sulfate; Baryte; Barii sulfas; Barium sulfate, precipitated

登记号

• CAS号: 7727-43-7
• EC号: 231-784-4
• MDL号: MFCD00003455
• 默克索引号: 14994
• PubChem SID: 24852116; 162220375; 24892087; 24847165; 24854610
• PubChem CID: 24414
• ATC码: V08BA01
• Chemspider ID: 22823
• 美国药典/FDA物质标识码: 25BB7EKE2E
• 维基百科标题: Barium_sulfate

理论计算性质

• Acid pKa: -3.034349
• 质子受体: 4
• 质子供体: 0
• LogD (pH = 5.5): -5.569452
• LogD (pH = 7.4): -5.594027
• Log P: -0.841552
• 摩尔折射率: 11.5274 cm^3
• 极化性: 6.037845 Å^3
• 极化表面积: 80.26 Å^2
• 可自由旋转的化学键: 0
• 里宾斯基五规则: true

分子性质

理化性质

• 溶解度: 0.0002448 g/100 mL (20 °C) ; 0.000285 g/100 mL (30 °C) in water; insoluble in alcohol, soluble in concentrated sulfuric acid; Insoluble in water, dilute acids, alcohol. Soluble in hot, concentrated H2SO4
• 外观: 1-4 Micron Powder; powder; Powder; white crystalline
• 熔点: 1345 °C; 1580°C dec.
• 沸点: 1600 °C (decomp)
• 密度: 4.5; 4.5 g/cm^3
• 折射率: 1.64
• 气味: odorless
• 标准摩尔生成焓 (ΔfH^o298): -1465 kJ·mol^-1
• 标准摩尔熵 (S^o298): 132 J·mol^-1·K^-1
• 溶度积(Ksp): 1.0842 × 10^-10 (25 °C)

安全信息

• RTECS编号: CR060000; CR0600000
• 德国WGK号: 3; nwg
• 安全公开号: R
• TSCA收录: 是
• GHS危险品标识: GHS07
• GHS警示词: Warning
• NFPA704:
  

  0

  0

  0
• GHS危险声明: H302 + H332
• 个人保护装置: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

药理学性质

• 生物利用度: negligible orally

产品相关信息

• 纯度: 97%; 97.5-100.5%; 99%; 99.998% (metals basis); 99.998% trace metals basis
• 级别: Ph Eur; puriss.; purum p.a.; ReagentPlus®; SAJ special grade
• 颗粒大小: 2.4-4.8 μm
• 适用性: meets USP testing specifications
• 杂质: ≤0.001% heavy metals (as Pb); ≤0.3% soluble in acid; acidity or alkalinity, complies; oxidisable S-compounds, complies; residual solvents, complies; soluble Barium salts, complies
• 痕量阳离子: Ca: ≤1000 mg/kg; Cd: ≤50 mg/kg; Co: ≤50 mg/kg; Cu: ≤50 mg/kg; Fe: ≤50 mg/kg; K: ≤100 mg/kg; Na: ≤1000 mg/kg; Ni: ≤50 mg/kg; Pb: ≤50 mg/kg; Zn: ≤500 mg/kg
• 痕量阴离子: chloride (Cl-): ≤1000 mg/kg
• 干燥失重: ≤2% loss on ignition; ≤2% loss on ignition, 600 °C
• 品质说明: meets analytical specification of Ph. Eur., BP; precipitated
• 药典: testing & handling conforms to Pharmacopeia
• 线性分子式: BaSO4

详细说明

Sigma Aldrich - 202762

包装
20, 100 g in poly bottle

Sigma Aldrich - 243353

包装
1 kg in poly bottle
100, 500 g in poly bottle
25 kg in fiber drum
法律信息
ReagentPlus 注册商标 Sigma-Aldrich Co. LLC