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  • 60229
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60229

Sigma-Aldrich

Potassium phosphate monobasic

tested according to Ph. Eur., anhydrous

All Photos(1)
Synonym(s):
Kalii dihydrogenophosphas, Monopotassium phosphate, Potassium dihydrogen phosphate, prim.-Potassium phosphate
Linear Formula:
KH2PO4
CAS Number:
7778-77-0
Molecular Weight:
136.09
EC Number:
231-913-4
MDL number:
MFCD00011401
PubChem Substance ID:
329758833
NACRES:
NA.25

grade

anhydrous

Quality Level

200

Agency

USP/NF
tested according to Ph. Eur.

Assay

98-100.5% dry basis

form

crystalline

loss

<2.0% loss on drying

pKa (25 °C)

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

mp

252.6 °C (lit.)

solubility

water: 208 g/L at 20 °C

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

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grade

anhydrous

grade

for molecular biology

grade

-

grade

certified reference material, TraceCERT®

agency

USP/NF, tested according to Ph. Eur.

agency

-

agency

meets USP/NF

agency

-

assay

98-100.5% dry basis

assay

≥99.5% (T)

assay

≥99% (acidimetric)

assay

-

form

crystalline

form

powder or crystals

form

crystals

form

-

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

mp

252.6 °C (lit.)

solubility

water: 208 g/L at 20 °C

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

soluble 208 g/L

solubility

-

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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