P0662
Potassium phosphate monobasic
ACS reagent, ≥99.0%
동의어(들):
Potassium dihydrogen phosphate, prim.-Potassium phosphate
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
KH2PO4
CAS 번호:
Molecular Weight:
136.09
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-913-4
MDL number:
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder or crystals
Solubility:
water: soluble (208 g/l at 20 °C (68 °F))
grade
ACS reagent
Quality Segment
agency
suitable for EPA 300, suitable for SM 5210
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.)
solubility
water: soluble (208 g/l at 20 °C (68 °F))
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
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.
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).
Other Notes
Legal Information
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC
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저장 등급
13 - Non Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable