calcium dihydrate sulfate

• ChemBase编号: 130865
• 分子式: CaH4O6S
• 平均质量: 172.17116
• 单一同位素质量: 171.93544983
• SMILES: O.O.[O-]S(=O)(=O)[O-].[Ca+2]
• Canonical SMILES: [O-]S(=O)(=O)[O-].O.O.[Ca+2]
• InChI: InChI=1S/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2
• InChIKey: PASHVRUKOFIRIK-UHFFFAOYSA-L

名称和登记号

名称

• IUPAC标准名: calcium dihydrate sulfate
• IUPAC传统名: calcium dihydrate sulfate
• 别名: 二水硫酸钙, ACS; 二水硫酸钙; 硫酸钙 二水合物; Calcium sulfate dihydrate, ACS; Calcium sulfate dihydrate

登记号

• CAS号: 10101-41-4
• EC号: 231-900-3
• MDL号: MFCD00149625
• 默克索引号: 141706
• PubChem SID: 24847421; 24855462; 162225143; 24892593; 24892640; 24858863
• PubChem CID: 24928

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: H2O: soluble0.01 M at 20 °C, clear, colorless
• 外观: Powder
• 熔点: 128°C -1.5H{2}O
• 沸点: 163°C -2H{2}O
• 密度: 2.32
• 紫外吸收波长: λ: 260 nm Amax: 0.015; λ: 280 nm Amax: 0.010
• pH值: 5.0-7.5 (25 °C, 0.01 M in H2O)

安全信息

• 保存注意事项: Hygroscopic
• RTECS编号: EW4150000
• 德国WGK号: 1
• TSCA收录: 是
• 个人保护装置: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter

产品相关信息

• 纯度: ≥95.0%; ≥98.0%; ≥99%; ≥99.0% (KT); 98%; 98.0-102.0%; 98.0-102.0% (ACS specification); 99%; 99.0-101.0% (based on anhydrous substance)
• 级别: ACS reagent; JIS special grade; puriss.; puriss. p.a.; ReagentPlus®; SAJ first grade
• 杂质: ≤0.001% heavy metals (as Pb); ≤0.001% total nitrogen (N); ≤0.002% heavy metals (as Pb); ≤0.005% P; ≤0.02% insol. dil. HCl; ≤0.02% insoluble in HCl; ≤0.02% Insoluble matter; insoluble matter, passes filter test; residual solvents, in accordance
• 痕量阳离子: Al: ≤0.0005%; As: ≤0.1 mg/kg; As: ≤3 mg/kg; Ba: ≤5 mg/kg; Bi: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤0.0005%; Cu: ≤5 mg/kg; Fe: ≤0.001%; Fe: ≤10 mg/kg; Fe: ≤50 mg/kg; heavy metals (as Pb): ≤0.002%; Hg: ≤10 mg/kg; K: ≤0.005%; K: ≤100 mg/kg; K: ≤50 mg/kg; Li: ≤5 mg/kg; Mg: ≤0.02%; Mg: ≤200 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤0.005%; Na: ≤0.02%; Na: ≤100 mg/kg; Na: ≤200 mg/kg; NH4+: ≤0.05%; Ni: ≤5 mg/kg; Pb: ≤0.001%; Pb: ≤20 mg/kg; Pb: ≤5 mg/kg; Se: ≤30 mg/kg; Sr: ≤0.05%; Sr: ≤200 mg/kg; Sr: ≤500 mg/kg; Zn: ≤0.0005%; Zn: ≤5 mg/kg
• 痕量阴离子: carbonate (CO32-): in accordance; carbonate (CO32-): passes test; chloride (Cl-): ≤0.005%; chloride (Cl-): ≤100 mg/kg; chloride (Cl-): ≤20 mg/kg; chloride (Cl-): ≤50 mg/kg; fluoride (F-): ≤30 mg/kg; nitrate (NO3-): ≤0.005%; nitrate (NO3-): ≤50 mg/kg; nitrate (NO3-): in accordance
• 干燥失重: 19.0-23.0% loss on drying, 250 °C
• 品质说明: meets analytical specification of NF, E 516
• λ: 0.01 M in H2O
• 产品线: BioUltra
• 线性分子式: CaSO4 · 2H2O

详细说明

Sigma Aldrich - C3771

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

Sigma Aldrich - 255548

包装
1 kg in poly bottle
100, 500 g in poly bottle