04243

リン酸カリウム 一塩基性

meets analytical specification of Ph. Eur., NF, E340, anhydrous, 98-100.5% (calc. to the dried substance)

• 別名: prim.-リン酸カリウム, リン酸一カリウム, リン酸二水素カリウム
• 化学式: KH₂PO₄
• CAS番号: 7778-77-0
• 分子量: 136.09
• EC Number: 231-913-4
• MDL番号: MFCD00011401
• UNSPSCコード: 12161700
• eCl@ss: 38070209
• PubChem Substance ID: 329747897
• NACRES: NA.25

特性

• グレード: anhydrous
• 品質水準: 200
• アッセイ: 98-100.5% (calc. to the dried substance)
• 形状: crystalline
• 品質: meets analytical specification of Ph. Eur., NF, E340
• 不純物: org. volatile impurities, complies (GC); residual solvents, complies; ≤0.001% heavy metals (as Pb); ≤0.04% KMnO₄ red. matter (as O); ≤0.2% in water insoluble matters
• 損失: ≤1% loss on drying, 130 °C
• pH: 4.2-4.5 (20 °C, 5%)
• pKa (25 °C): (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
• mp: 252.6 °C (lit.)
• 溶解性: H₂O: soluble 4.5 parts; alcohol: insoluble
• 密度: 2.338 g/mL at 25 °C (lit.)
• 微量陰イオン: chloride (Cl^-): ≤10 mg/kg; fluoride (F^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤200 mg/kg
• 微量陽イオン: As: ≤2 mg/kg; Cd: ≤1 mg/kg; Cu: ≤20 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; Na: ≤1000 mg/kg; Pb: ≤4 mg/kg; Zn: ≤20 mg/kg
• 適合性: complies for appearance of solution
• SMILES記法: [K+].OP(O)([O-])=O
• InChI: 1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
• InChI Key: GNSKLFRGEWLPPA-UHFFFAOYSA-M

詳細

アプリケーション

Potassium phosphate monobasic was used for separating tobacco protein by using aqueous two-phase extraction.

生物化学的／生理学的作用

Potassium phosphate monobasic also referred to as monopotassium phosphate or potassium dihydrogen phosphate is a soluble salt of potassium that serves as a buffering agent. It enhances the solubility of calcium and phosphorus in amino acid plus dextrose solutions and hence assists in improving the mineral balance of parenterally fed low birth weight infants.

調製ノート

Potassium phosphate monobasic dissolves in 4.5 (approx.) parts of water to yield a solution. It is practically insoluble in alcohol.

安全性情報

• 保管分類コード: 13 - Non Combustible Solids
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable