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60353

Sigma-Aldrich

Potassium phosphate dibasic

anhydrous, for luminescence, for molecular biology, BioUltra, ≥99.0% (T)

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Synonym(s):
Dipotassium hydrogenphosphate, Dipotassium phosphate, sec.-Potassium phosphate
Linear Formula:
K2HPO4
CAS Number:
Molecular Weight:
174.18
EC Number:
MDL number:
eCl@ss:
38070212
PubChem Substance ID:
NACRES:
NA.25

grade

for luminescence
for molecular biology

product line

BioUltra

Assay

≥99.0% (T)

form

powder or crystals

impurities

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected

pH

8.7-9.3 (25 °C, 1 M in H2O)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤10 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤5000 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: ≤0.20
λ: 280 nm Amax: ≤0.15

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

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This Item
P828179549660356
Potassium phosphate dibasic anhydrous, for luminescence, for molecular biology, BioUltra, ≥99.0% (T)

Sigma-Aldrich

60353

Potassium phosphate dibasic

Premium Grade
Potassium phosphate dibasic reagent grade, ≥98.0%

Sigma-Aldrich

P8281

Potassium phosphate dibasic

Essential Grade
Potassium phosphate dibasic puriss. p.a., ACS reagent, anhydrous, ≥99.0% (T)

Sigma-Aldrich

60356

Potassium phosphate dibasic

Essential Grade
product line

BioUltra

product line

-

product line

Redi-Dri

product line

-

assay

≥99.0% (T)

assay

≥98.0%

assay

≥98%

assay

≥99.0% (T)

form

powder or crystals

form

powder

form

powder

form

powder or crystals

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected

impurities

-

impurities

≤0.001% Nitrogen compounds (as N), ≤0.01% Insoluble matter

impurities

≤0.001% total nitrogen (N)

pH

8.7-9.3 (25 °C, 1 M in H2O)

pH

8.7-9.3 (25 °C, 50 g/L)

pH

8.5-9.6 (25 °C, 5% in solution)

pH

8.5-9.6 (25 °C, 50 mg/mL in H2O)

Application

Potassium phosphate monobasic and dibasic, are used to create phosphate buffered solutions such as potassium phosphate buffered water and saline solutions used in biological applications.

Storage Class Code

13 - Non 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

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