dioxochromiumdiol diamine

• ChemBase编号: 149946
• 分子式: CrH8N2O4
• 平均质量: 152.07062
• 单一同位素质量: 151.98891425
• SMILES: N.N.O[Cr](=O)(=O)O
• Canonical SMILES: O[Cr](=O)(=O)O.N.N
• InChI: InChI=1S/Cr.2H3N.2H2O.2O/h;2*1H3;2*1H2;;/q+2;;;;;;/p-2
• InChIKey: FEIXNIOTSKFSAZ-UHFFFAOYSA-L

名称和登记号

名称

• IUPAC标准名: dioxochromiumdiol diamine
• IUPAC传统名: chromic acid diamine
• 别名: 铬酸铵; Chromic acid ammonium salt; Ammonium chromate

登记号

• CAS号: 7788-98-9
• EC号: 232-138-4
• MDL号: MFCD00015958
• PubChem SID: 24852933; 162244108; 24846396; 24846394
• PubChem CID: 16211153

理论计算性质

• Acid pKa: -2.30103
• 质子受体: 4
• 质子供体: 2
• LogD (pH = 5.5): -6.720884
• LogD (pH = 7.4): -7.0465326
• Log P: -2.5252
• 摩尔折射率: 8.015 cm^3
• 极化性: 6.430496 Å^3
• 极化表面积: 74.6 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: soluble1 M at 20 °C, clear, yellow
• 外观: needles
• 密度: 1.91 g/mL at 25 °C(lit.)
• pH值: 7.0-8.5 (25 °C, 1 M in H2O)

安全信息

• RTECS编号: GB2880000
• 欧盟危险性物质标志: 环境危害性(Nature polluting) (N); 氧化性(Oxidising) (O); 有毒(Toxic) (T)
• 联合国危险货物编号: 1479
• 德国WGK号: 3
• 联合国危险货物等级: 5.1
• 联合国危险货物包装类别(PG): 2
• 危险公开号: 49-8-34-43-50/53
• 安全公开号: 53-17-26-36/37/39-45-60-61
• GHS危险品标识: GHS03; GHS05; GHS08; GHS09
• GHS警示词: Danger
• GHS危险声明: H272-H314-H334-H350i-H400
• GHS警示性声明: P201-P220-P261-P273-P280-P305 + P351 + P338
• 个人保护装置: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
• RID/ADR: UN 1479 5.1/PG 2

产品相关信息

• 纯度: ≥98.0% (RT); ≥99.0% (RT); 98%
• 级别: purum
• 杂质: insoluble matter, passes filter test
• 痕量阳离子: Ca: ≤50 mg/kg; Cd: ≤10 mg/kg; Co: ≤10 mg/kg; Cu: ≤10 mg/kg; Fe: ≤20 mg/kg; K: ≤50 mg/kg; Mg: ≤10 mg/kg; Mn: ≤10 mg/kg; Na: ≤50 mg/kg; Ni: ≤20 mg/kg; Pb: ≤50 mg/kg; Zn: ≤50 mg/kg
• 痕量阴离子: chloride (Cl-): ≤50 mg/kg; sulfate (SO42-): ≤100 mg/kg
• 产品线: BioUltra
• abs.: absorption1M/, H2O no transmittance (UV)
• 线性分子式: (NH4)2CrO4

详细说明

Sigma Aldrich - 216038

包装
500 g in poly bottle
Application
制备固体多相氧化剂（用于醇的液相氧化）的试剂。1

Sigma Aldrich - 09707

Application
Ammonium chromate has been used to study the α-annealing of recoil atoms in chromates. Ammonium chromate has also been used to report the kinetics of decomposition as well as the thermal decomposition products of ammonium chromate.