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PX1565

Supelco

Potassium phosphate monobasic

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

Synonym(s):

Potassium Dihydrogen Phosphate, Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate

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About This Item

Linear Formula:
KH2PO4
CAS Number:
7778-77-0
Molecular Weight:
136.09
MDL number:
MFCD00011401
UNSPSC Code:
12352302
EC Index Number:
231-913-4
Assay:
≥99% (acidimetric)
Grade:
ACS reagent
Form:
crystals
Solubility:
soluble 208 g/L
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grade

ACS reagent

Quality Level

200

agency

meets USP/NF

assay

≥99% (acidimetric)

form

crystals

impurities

≤0.01% Insoluble matter

loss

≤ 0.2% loss on drying, 105°C

color

white

pH

4.2-4.6 (20 °C, 20 g/L in H2O)

mp

252.6 °C (lit.)

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Application

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

Analysis Note

Assay (acidimetric)99.0% minChloride (Cl)0.001% maxColorWhiteFormCrystalsHeavy Metals (by ICP-OES)0.001% maxInsoluble matter0.01% maxIron (Fe)0.002% maxLoss on drying (105°C)0.2% maxSodium (Na)0.005% maxSulfate (SO4)0.003% maxpH of a 5% solution at 25°C4.1-4.5

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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