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P9666

Sigma-Aldrich

Potassium phosphate dibasic trihydrate

for molecular biology, ≥99%

Synonym(s):

Dipotassium hydrogen phosphate trihydrate, Dipotassium phosphate, di-Potassium hydrogen phosphate trihydrate

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About This Item

Linear Formula:
K2HPO4 · 3H2O
CAS Number:
16788-57-1
Molecular Weight:
228.22
EC Number:
231-834-5
MDL number:
MFCD00149926
UNSPSC Code:
12161700
PubChem Substance ID:
24899052
NACRES:
NA.25

grade

for molecular biology

Assay

≥99%

form

powder or crystals

quality

200

pH

9.2-9.4 (25 °C, 50 g/L)

solubility

water: 100 mg/mL, clear, colorless

anion traces

chloride (Cl-): ≤30 ppm

cation traces

Fe: ≤10 ppm
heavy metals (as Pb): ≤5 ppm

foreign activity

DNase, RNase and protease, none detected

SMILES string

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

InChI

1S/2K.H3O4P.3H2O/c;;1-5(2,3)4;;;/h;;(H3,1,2,3,4);3*1H2/q2*+1;;;;/p-2

InChI key

XQGPKZUNMMFTAL-UHFFFAOYSA-L

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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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Potassium phosphate dibasic ACS reagent, ≥98%

Sigma-Aldrich

P3786

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