Description
Potassium phosphate dibasic
ACS reagent, ≥98%
Synonym(s):
Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate
Linear Formula:
K2HPO4
CAS Number:
7758-11-4
Molecular Weight:
174.18
EC Number:
231-834-5
MDL number:
MFCD00011383
eCl@ss:
38070212
PubChem Substance ID:
329820191
NACRES:
NA.21
PROPERTIES
grade
ACS reagent
Quality Level
200
Assay
≥98%
form
powder
impurities
≤0.001% Nitrogen compounds (as N)
≤0.01% Insoluble matter
loss
≤1.0% loss on drying, 105°C
pH
8.5-9.6 (25 °C, 5% in solution)
anion traces
chloride (Cl-): ≤0.003%
sulfate (SO42-): ≤0.005%
cation traces
Fe: ≤0.001%
Na: ≤0.05%
heavy metals: ≤5 ppm (by ICP-OES)
SMILES string
[K+].[K+].OP([O-])([O-])=O
InChI
1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
InChI key
ZPWVASYFFYYZEW-UHFFFAOYSA-L
Application
Potassium phosphate dibasic has been used in the preparation of MMG (maltose, methyl green) medium, phosphate buffered saline and hypotonic solution