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RDD020

Potassium phosphate monobasic

anhydrous, free-flowing, Redi-Dri, ReagentPlus®, ≥99.0% (titration)

Synonym(s):

Potassium dihydrogen phosphate, prim.-Potassium phosphate

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About This Item

Linear Formula:
KH2PO4
CAS Number:
Molecular Weight:
136.09
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12161700
EC Number:
231-913-4
MDL number:
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grade

anhydrous

Quality Segment

product line

ReagentPlus®, Redi-Dri

assay

≥99.0% (titration)

form

crystalline

quality

free-flowing

pKa (25 °C)

(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)

mp

252.6 °C (lit.)

solubility

water: 100 mg/mL, clear, colorless

density

2.338 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/K.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1

InChI key

GNSKLFRGEWLPPA-UHFFFAOYSA-M

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

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This Item
79548860220-M60220
grade

anhydrous

grade

ACS reagent, anhydrous

grade

ACS reagent, anhydrous, puriss. p.a.

grade

ACS reagent, anhydrous, puriss. p.a.

assay

≥99.0% (titration)

assay

≥99%

assay

99.5-100.5%

assay

99.5-100.5%

product line

ReagentPlus®, Redi-Dri

product line

Redi-Dri

product line

-

product line

-

Quality Level

100

Quality Level

200

Quality Level

-

Quality Level

100

form

crystalline

form

powder or crystals

form

crystalline

form

crystalline

solubility

water: 100 mg/mL, clear, colorless

solubility

water: soluble (208 g/l at 20 °C (68 °F))

solubility

water: soluble (208 g/l at 20 °C (68 °F))

solubility

water: 0.5 g/10 mL, clear, colorless to light yellow


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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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