磷酸钾 一元

• 产品号: 04243
• CAS号: 7778-77-0
• 分子式: H2KO4P
• 分子量: 136.085541
• 纯 度: 98-100.5% (calc. to the dried substance)

产品别名

• 标题: Potassium phosphate monobasic
• IUPAC标准名: potassium dihydrogen phosphate
• IUPAC传统名: potassium dihydrogen phosphate
• 别名: prim.-Potassium phosphate; Potassium dihydrogen phosphate; 无水磷酸二氢钾; Monopotassium phosphate; 磷酸一钾; 磷酸二氢钾

产品登记号

• CAS号: 7778-77-0
• MDL号: MFCD00011401
• EC号: 231-913-4
• PubChem SID: 24845701

产品性质

• 痕量阴离子: chloride (Cl-): ≤10 mg/kg
• 痕量阴离子: fluoride (F-): ≤10 mg/kg
• 痕量阴离子: sulfate (SO42-): ≤200 mg/kg
• 痕量阳离子: As: ≤2 mg/kg
• 痕量阳离子: Cd: ≤1 mg/kg
• 痕量阳离子: Cu: ≤20 mg/kg
• 痕量阳离子: Fe: ≤10 mg/kg
• 痕量阳离子: Hg: ≤1 mg/kg
• 痕量阳离子: Na: ≤1000 mg/kg
• 痕量阳离子: Pb: ≤4 mg/kg
• 痕量阳离子: Zn: ≤20 mg/kg
• 杂质: org. volatile impurities, complies (GC)
• 杂质: residual solvents, complies
• 杂质: ≤0.001% heavy metals (as Pb)
• 杂质: ≤0.04% KMnO4 red. matter (as O)
• 杂质: ≤0.2% in water insoluble matters
• 线性分子式: KH2PO4
• 干燥失重: ≤1% loss on drying, 130 °C
• 纯度: 98-100.5% (calc. to the dried substance)
• 品质说明: meets analytical specification of Ph. Eur., NF, E340
• 适用性: complies for appearance of solution
• pKa: (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) (25°C)
• 密度: 2.338 g/mL at 25 °C(lit.)
• 熔点: 252.6 °C(lit.)
• pH值: 4.2-4.5 (20 °C, 5%)
• 个人保护装置: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• RTECS编号: TC6615500
• 德国WGK号: 2