234508
Potassium phosphate dibasic
ACS reagent, ≥98%
Synonym(s):
Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate
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About This Item
Linear Formula:
K2HPO4
CAS Number:
Molecular Weight:
174.18
EC Number:
231-834-5
UNSPSC Code:
12352300
MDL number:
InChI key
ZPWVASYFFYYZEW-UHFFFAOYSA-L
InChI
1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
SMILES string
[K+].[K+].OP([O-])([O-])=O
grade
ACS reagent
assay
≥98%
impurities
≤0.001% N compounds, ≤0.01% insolubles
loss
≤1.0% loss on drying
pH
8.5-9.6
anion traces
chloride (Cl-): ≤0.003%, sulfate (SO42-): ≤0.005%
cation traces
Fe: ≤0.001%, Na: ≤0.05%, heavy metals: ≤5 ppm
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