CAS 7758-11-4 Dipotassium hydrogenphosphate - Materials / Alfa Chemistry

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Electrolytes

Dipotassium hydrogenphosphate

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Catalog Number

ACM7758114

Product Name

Dipotassium hydrogenphosphate

Structure

CAS

7758-11-4

Category

Electrolytes

Synonyms

Isolyte;DIPOTASSIUM PHOSPHATE;Mediject P;SEC-POTASSIUM PHOSPHATE;DKP

Description

Dipotassium phosphate (K2HPO4) (also dipotassium hydrogen orthophosphatepotassium phosphate dibasic) is a highly water-soluble salt which is often used as a fertilizer, food additive and buffering agent. It is a common source of phosphorus and potassium.A dipotassium phosphate solution is formed by the stoichiometric reaction of phosphoric acid with two equivalents of potassium hydroxide:H3PO4 + 2 KOH → K2HPO4 + 2 H₂O

IUPAC Name

dipotassium;hydrogen phosphate

Molecular Weight

174.176g/mol

Molecular Formula

HK2O4P

Canonical SMILES

OP(=O)([O-])[O-].[K+].[K+]

InChI

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

Melting Point

340ºC

Density

2.44 g/cm³

Solubility

Freely soluble in water. Insoluble in ethanol;Very sol in water; 100 g dissolves rapidly & completely in 67 g cold water;Slightly sol in alcohol

Appearance

White crystalline powder

Color/Form

White crystals;Colorless or white granules or powder

Complexity

46.5

Covalently-Bonded Unit Count

EC Number

231-834-5;231-834-5

Exact Mass

173.888658g/mol

Formal Charge

Heavy Atom Count

Log P

-0.05220

MeSH Entry Terms

dipotassium hydrogen phosphate;K2HPO4;KD2PO4;potassium acid phosphate;potassium dideuterium phosphate;potassium dihydrogen phosphate;potassium monohydrogen phosphate;potassium phosphate;potassium phosphate (K-H2PO4);potassium phosphate (K-H3PO4(1:2));potassium phosphate (K2-HPO4);potassium phosphate (K3-PO4);potassium phosphate, dibasic;potassium phosphate, monobasic;potassium phosphate, unspecified form

Monoisotopic Mass

173.888658g/mol

Other Experimental

Converted into pyrophosphate by ignition; somewhat hygroscopic;Hygroscopic

Rotatable Bond Count

Stability

Stable. Hygroscopic.

Storage Conditions

Store at RT.

UNII

CI71S98N1Z

WGK Germany