221309
Potassium phosphate monobasic
≥99.0%, ACS reagent
Synonym(s):
Potassium dihydrogen phosphate, prim.-Potassium phosphate
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About This Item
Linear Formula:
KH2PO4
CAS Number:
Molecular Weight:
136.09
EC Number:
231-913-4
UNSPSC Code:
12352300
MDL number:
pH
4.1-4.5
InChI key
GNSKLFRGEWLPPA-UHFFFAOYSA-M
InChI
1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
grade
ACS reagent
assay
≥99.0%
impurities
≤0.001% N compounds, ≤0.01% insolubles
loss
≤0.2% loss on drying
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%
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