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Sigma-Aldrich 04243 Potassium phosphate monobasic meets analytical specification of Ph. Eur., NF, E340, anhydrous, 98-100.5% (calc. to the dried substance) CAS No.: 7778-77-0 1 kg
Category
Brand
Stock Code
LB.SA.04243-1KG
Kısa Bilgi
Synonym(s): Potassium dihydrogen phosphate, prim.-Potassium phosphate Linear Formula: KH2PO4 CAS Number: 7778-77-0 Molecular Weight: 136.09 EC Number: 231-913-4 MDL number: MFCD00011401 UNSPSC Code: 12161700 eCl@ss: 38070209 PubChem Substance ID: 329747897 NACRES: NA.25
| Sigma-Aldrich 04243 Potassium phosphate monobasic CAS No.: 7778-77-0 1 kg |
| Synonym(s): Potassium dihydrogen phosphate, prim.-Potassium phosphate Linear Formula: KH2PO4 CAS Number: 7778-77-0 Molecular Weight: 136.09 EC Number: 231-913-4 MDL number: MFCD00011401 UNSPSC Code: 12161700 eCl@ss: 38070209 PubChem Substance ID: 329747897 NACRES: NA.25 |
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PROPERTIES
grade anhydrous
Quality Level 200 Assay 98-100.5% (calc. to the dried substance) form crystalline quality meets analytical specification of Ph. Eur., NF, E340 impurities residual solvents, complies ≤0.04% KMnO4 red. matter (as O) ≤0.2% in water insoluble matters ≤10 mg/kg heavy metals (as Pb) loss ≤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.) solubility H2O: soluble 4.5 parts alcohol: insoluble density 2.338 g/mL at 25 °C (lit.) anion traces chloride (Cl-): ≤0.001% fluoride (F-): ≤10 mg/kg sulfate (SO42-): ≤200 mg/kg cation traces As: ≤1 mg/kg Cd: ≤1 mg/kg Fe: ≤10 mg/kg Hg: ≤1 mg/kg Na: ≤0.1% Pb: ≤1 mg/kg suitability complies for appearance of solution SMILES string [K+].OP(O)([O-])=O [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 DESCRIPTION Application Potassium phosphate monobasic was used for separating tobacco protein by using aqueous two-phase extraction.[1] Biochem/physiol Actions 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.[2] Preparation Note Potassium phosphate monobasic dissolves in 4.5 (approx.) parts of water to yield a solution. It is practically insoluble in alcohol. |
Tavsiye Ürünler
Ücretsiz Kargo
14.930,33 TL + KDV
17.916,40 TL