Skip to Content
Merck
CN
All Photos(1)

Documents

Safety Information

60349-M

Sigma-Aldrich

Potassium phosphate dibasic trihydrate

puriss. p.a., ≥99.0% (T)

Synonym(s):

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

Sign Into View Organizational & Contract Pricing
All Photos(1)

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:
12352302
PubChem Substance ID:
329758892
NACRES:
NA.21

grade

puriss. p.a.

Quality Level

200

Assay

≥99.0% (T)

form

crystalline powder

impurities

≤0.001% total nitrogen (N)

pH

9.1-9.4 (25 °C, 50 mg/mL in H2O)

anion traces

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤0.1 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤500 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

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

Looking for similar products? Visit Product Comparison Guide

General description

Potassium phosphate dibasic trihydrate (K2HPO4.3H2O, Dipotassium hydrogen phosphate trihydrate, Dipotassium phosphate, di-Potassium hydrogen phosphate trihydrate) is the potassium salt having a pH in the range of 9.1-9.4.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

新产品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
STBJ8543
STBJ8101
STBK4313
STBK3040
STBJ4902

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

L Turner et al.
Biophysical journal, 77(1), 597-603 (1999-07-02)
The behavior of the bacterium Escherichia coli is controlled by switching of the flagellar rotary motor between the two rotational states, clockwise (CW) and counterclockwise (CCW). The molecular mechanism for switching remains unknown, but binding of the response regulator CheY-P
Silvio D Brugger et al.
Journal of clinical microbiology, 47(6), 1750-1756 (2009-04-24)
Colonization with more than one distinct strain of the same species, also termed cocolonization, is a prerequisite for horizontal gene transfer between pneumococcal strains that may lead to change of the capsular serotype. Capsule switch has become an important issue

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service