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About This Item
Linear Formula:
K2HPO4 · 3H2O
CAS Number:
Molecular Weight:
228.22
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
231-834-5
MDL number:
Assay:
≥99.0% (T)
Form:
crystalline powder
grade
puriss. p.a.
Quality Segment
assay
≥99.0% (T)
form
crystalline powder
impurities
≤0.001% total nitrogen (N)
pH
9.1-9.4 (25 °C, 50 mg/mL in H2O)
anion traces
chloride (Cl-): ≤20 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
As: ≤0.1 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤500 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
SMILES string
O.O.O.[K+].[K+].OP([O-])([O-])=O
InChI
1S/2K.H3O4P.3H2O/c;;1-5(2,3)4;;;/h;;(H3,1,2,3,4);3*1H2/q2*+1;;;;/p-2
InChI key
XQGPKZUNMMFTAL-UHFFFAOYSA-L
General description
Potassium phosphate dibasic trihydrate (K2HPO4.3H2O, Dipotassium hydrogen phosphate trihydrate, Dipotassium phosphate, di-Potassium hydrogen phosphate trihydrate) is the potassium salt having a pH in the range of 9.1-9.4.
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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