Sigma-Aldrich P0662 Potassium phosphate monobasic ACS reagent, ≥99.0% 1 kg
Kategori
Marka
Stok Kodu
LB.SA.P0662-1KG
Kısa Bilgi
Synonym(s): Monopotassium phosphate, 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 PubChem Substance ID: 329820048 NACRES: NA.21
Garanti Süresi
24 Ay
| Sigma-Aldrich P0662 Potassium phosphate monobasic ACS reagent, ≥99.0% 1 kg |
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Synonym(s): Monopotassium phosphate, 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
PubChem Substance ID: 329820048
NACRES: NA.21
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PROPERTIES
grade ACS reagent
Quality Level 200
Assay ≥99.0%
form powder or crystals
technique(s) tissue culture: suitable impurities ≤0.01% Insoluble matter
loss ≤0.2% loss on drying, 105°C
pH 4.1-4.5 (25 °C, 5%)
pKa (25 °C) (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
bp >450 °C
mp 252.6 °C (lit.)
density 2.338 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.003%
cation traces
Fe: ≤0.002%
Na: ≤0.005%
heavy metals: ≤0.001% (by ICP)
SMILES string [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
General description
Potassium phosphate monobasic (monopotassium orthophosphate) is a water soluble inorganic salt. Its standard enthalpy of formation has been reported to be -376.1kcalmol-1.[1] It acts a starting material in the synthesis of potassium metaphosphate.[2]
Application
Potassium phosphate monobasic has been used in the preparation of phosphate buffer[3] and phosphate buffered saline (PBS).[4][5] It has also been used in the preparation of PEG1000 (poly ethylene glycol)/potassium phosphate aqueous two-phase systems (ATPS).[6]
Other Notes
Go to Redi-Dri™ Product Listing 795488
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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