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PX1570

Potassium phosphate dibasic

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Synonym(s):

Potassium Hydrogen Phosphate, Dipotassium Phosphate, Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate

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About This Item

Linear Formula:
K2HPO4
CAS Number:
7758-11-4
Molecular Weight:
174.18
UNSPSC Code:
12352302
EC Index Number:
231-834-5
MDL number:
MFCD00011383
Assay:
≥98.0% (acidimetric)
Grade:
ACS reagent
Form:
granular
Solubility:
1600 g/L
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grade

ACS reagent

Quality Level

200

agency

meets USP/NF

assay

≥98.0% (acidimetric)

form

granular

impurities

≤0.01% Insoluble matter

loss

≤1.0% loss on drying, 105°C

color

white

pH

9 (20 °C, 10 g/L in H2O)

solubility

1600 g/L

anion traces

chloride (Cl-): ≤0.003%, sulfate (SO42-): ≤0.005%

cation traces

Fe: ≤0.001%, N: ≤0.001%, Na: ≤0.05%, heavy metals: ≤5 ppm

shipped in

ambient

storage temp.

room temp

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

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Analysis Note

Assay (acidimetric)98.0% minChloride (Cl)0.003% maxColorWhiteFormGranular powderHeavy Metals (by ICP-OES)5ppm maxInsoluble matter0.01% maxIron (Fe)0.001% maxLoss on drying (105°C)1.0% maxNitrogen compounds (as N)0.001% maxSodium (Na)0.05% maxSulfate (SO4)0.005% maxpH of a 5% solution at 25°C8.5-9.6

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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