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Potassium phosphate dibasic - 99.99% metals basis, high purity , CAS No.16788-57-1

63 Citations

COA

Grade & Purity:

PrimorTrace™

≥99.99% metals basis

Cas Number: 16788-57-1
Molecular Weight: 228.22
EC Number: 231-834-5
MDL number: MFCD00149926
PubChem CID: 16217523

In stock

Item Number

P112280

Grouped product items
SKU	Size	Availability	Price
P112280-25g	25g	2	$31.90
P112280-100g	100g	3	$90.90
P112280-500g	500g	3	$309.90

View related series

Biological buffer (75)

Basic Description

Synonyms	Phosphoric acid, dipotassium salt, trihydrate \| Potassium phosphate dibasic trihydrate \| Potassium phosphate, dibasic, trihydrate \| Dipotassium hydrogen phosphate trihydrate \| di-Potassium hydrogen phosphate trihydrate \| Potassium hydrogenphosphate trihyd
Specifications & Purity	PrimorTrace™, ≥99.99% metals basis
Shipped In	Normal
Grade	PrimorTrace™

Taxonomic Classification

Taxonomy Tree

Kingdom Inorganic compounds
- Superclass Mixed metal/non-metal compounds
  - Class Alkali metal oxoanionic compounds
    - Subclass Alkali metal phosphates

Kingdom	Inorganic compounds
Superclass	Mixed metal/non-metal compounds
Class	Alkali metal oxoanionic compounds
Subclass	Alkali metal phosphates
Intermediate Tree Nodes	Not available
Direct Parent	Alkali metal phosphates
Alternative Parents	Inorganic salts Inorganic oxides
Molecular Framework	Not available
Substituents	Alkali metal phosphate - Inorganic oxide - Inorganic salt
Description	This compound belongs to the class of inorganic compounds known as alkali metal phosphates. These are inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

Names and Identifiers

IUPAC Name	dipotassium;hydrogen phosphate;trihydrate
INCHI	InChI=1S/2K.H3O4P.3H2O/c;;1-5(2,3)4;;;/h;;(H3,1,2,3,4);31H2/q2+1;;;;/p-2
InChIKey	XQGPKZUNMMFTAL-UHFFFAOYSA-L
Smiles	O.O.O.OP(=O)([O-])[O-].[K+].[K+]
Isomeric SMILES	O.O.O.OP(=O)([O-])[O-].[K+].[K+]
WGK Germany	3
Molecular Weight	228.22
Reaxy-Rn	16823798
Reaxys-RN_link_address	https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=16823798&ln=

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

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10 results found

Lot Number	Certificate Type	Date	Item
H2126389	Certificate of Analysis	Jun 09, 2025	P112280
F2505434	Certificate of Analysis	May 29, 2025	P112280
H2026110	Certificate of Analysis	Jun 17, 2024	P112280
G2310636	Certificate of Analysis	Apr 24, 2023	P112280
I2223240	Certificate of Analysis	Jun 28, 2022	P112280
I2223318	Certificate of Analysis	Jun 28, 2022	P112280
F2230529	Certificate of Analysis	Jun 07, 2022	P112280
F2230441	Certificate of Analysis	Jun 07, 2022	P112280
G2201019	Certificate of Analysis	Jun 07, 2022	P112280
G2201018	Certificate of Analysis	Jun 07, 2022	P112280

Chemical and Physical Properties

Sensitivity	Moisture sensitive.
Molecular Weight	228.220 g/mol
XLogP3
Hydrogen Bond Donor Count	4
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	0
Exact Mass	227.92 Da
Monoisotopic Mass	227.92 Da
Topological Polar Surface Area	86.400 Å²
Heavy Atom Count	10
Formal Charge	0
Complexity	46.500
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	6

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