POTASSIUM PHOSPHATE MONOBASIC, ANHYDROUS

Code: P0662-1KGSIG D2-231

Application

Potassium phosphate monobasic has been used in the preparation of phosphate buffer and phosphate buffered saline (PBS). It has also been used in the preparation o...


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Application

Potassium phosphate monobasic has been used in the preparation of phosphate buffer and phosphate buffered saline (PBS). It has also been used in the preparation of PEG1000 (poly ethylene glycol)/potassium phosphate aqueous two-phase systems (ATPS).

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. It acts a starting material in the synthesis of potassium metaphosphate.

Legal Information

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Other Notes

Go to Redi-Dri™ Product Listing 795488

Packaging

1, 2.5, 4×2.5 kg in poly bottle

25, 500, 6×500 g in poly bottle

12 kg in poly drum

anion tracessulfate (SO42-): ≤0.003%, chloride (Cl-): ≤0.001%
assay≥99.0%
bp>450 °C
cation tracesheavy metals: ≤0.001% (by ICP), Na: ≤0.005%, Fe: ≤0.002%
density2.338 g/mL at 25 °C (lit.)
formpowder
gradeACS reagent
impurities≤0.01% Insoluble matter
InChI keyGNSKLFRGEWLPPA-UHFFFAOYSA-M
InChI1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
loss≤0.2% loss on drying, 105°C
mp252.6 °C (lit.)
pH4.1-4.5 (25 °C, 5%)
pKa (25 °C)(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
Quality Level200
SMILES string[K+].OP(O)([O-])=O
technique(s)tissue culture: suitable
Cas Number7778-77-0
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