Tripotassium phosphate trihydrate

CAS 22763-03-7  ·  H₆K₃O₇P  ·  MW 266.31 g/mol

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3D model Tripotassium phosphate trihydrate, CAS 22763-03-7, molecular formula H₆K₃O₇P, molar mass 266.31 g/mol
About Tripotassium phosphate trihydrate

Tripotassium phosphate trihydrate is a chemical compound registered under number CAS 22763-03-7, with the molecular formula H₆K₃O₇P, and a molar mass of 266.31 g/mol.

The molecule contains 17 atoms connected by 10 chemical bonds. The full systematic IUPAC name of this compound is tripotassium;phosphate;trihydrate. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, polar surface area PSA = 89.3 Ų, 3 donors and 7 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The widget above may be used for educational, research and commercial purposes.

Physicochemical properties
Molecular formulaH₆K₃O₇P
Molar mass266.31 g/mol
IUPACtripotassium;phosphate;trihydrate
SMILESO.O.O.[O-]P(=O)([O-])[O-].[K+].[K+].[K+]
InChIKeyKPZYAGQLBFUTMA-UHFFFAOYSA-K
logP (XLogP3)—
PSA89.3 Ų
HBD / HBA3 / 7
PubChem CIDCID 18407952 ↗
Scientific literature

Related literature

4 articles · 0 open access · Sources: PubMed, OpenAlex, Semantic Scholar

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📈 Publication timeline (number of articles: 4)

1974: number of articles 119741987: number of articles 11987

Bar height = number of articles in a given year. Hover over a bar to see details.

Data from PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary generated by Semantic Scholar TLDR. Articles marked with require paid access.

Synonyms
tripotassium phosphate trihydrate · RefChem:900066 · Potassium phosphate trihydrate · 22763-03-7 · POTASSIUM PHOSPHATE TRIBASIC TRIHYDRATE · tripotassium;phosphate;trihydrate · H6K3O7P · Tri-potassium phosphate trihydrate · MFCD00151709 · Potassiumphosphatetrihydrate · PHOSPHORIC ACID TRIPOTASSIUM SALT TRIHYDRATE · SCHEMBL152268 · orb2938910 · tri-potassium-phosphate-trihydrate · TYD-01753
Data sources
Related molecules
📜 License & provenancePREDICTED MODEL · NOT VERIFIEDMolGod_License_1
PREDICTED MODEL — NOT VERIFIED
computed by MolGod Scientific · experimental feature (beta) · may contain errors
ILLUSTRATIVE FRAGMENT ARRANGEMENT — relative positions are not structural data

No source 3-D conformer was available to MolGod for this substance. MolGod Scientific computed this geometry from the structural formula with RDKit 2026.03.6 (ETKDGv3 conformer generation, MMFF94 force-field optimisation; lowest-energy converged conformer of a fixed-seed set). It is not a measured structure, it does not come from PubChem, and it has not been compared with experimental data. It shows one possible conformation.

This substance consists of 7 separate components (for example ions). Each component was computed separately; they are arranged radially around a layout anchor for visualisation only (at least 3.0 Å apart). Their relative positions are not a crystal structure, coordination geometry, ionic contacts or any experimentally determined arrangement.

Methods and references
  1. RDKit: Open-source cheminformatics, version 2026.03.6. Zenodo. doi:10.5281/zenodo.22140358 (all versions: doi:10.5281/zenodo.591637)
  2. Riniker S, Landrum GA. Better Informed Distance Geometry: Using What We Know To Improve Conformation Generation. J. Chem. Inf. Model. 2015, 55, 2562-2574. doi:10.1021/acs.jcim.5b00654
  3. Wang S, Witek J, Landrum GA, Riniker S. Improving Conformer Generation for Small Rings and Macrocycles Based on Distance Geometry and Experimental Torsional-Angle Preferences. J. Chem. Inf. Model. 2020, 60, 2044-2058. doi:10.1021/acs.jcim.0c00025
  4. Halgren TA. Merck molecular force field. I. Basis, form, scope, parameterization, and performance of MMFF94. J. Comput. Chem. 1996, 17, 490-519. doi:10.1002/(SICI)1096-987X(199604)17:5/6<490::AID-JCC1>3.0.CO;2-P
  5. Tosco P, Stiefl N, Landrum G. Bringing the MMFF force field to the RDKit: implementation and validation. J. Cheminform. 2014, 6, 37. doi:10.1186/s13321-014-0037-3
  6. Heller SR, McNaught A, Pletnev I, Stein S, Tchekhovskoi D. InChI, the IUPAC International Chemical Identifier. J. Cheminform. 2015, 7, 23. doi:10.1186/s13321-015-0068-4
  7. Kim S, Chen J, Cheng T, et al. PubChem 2025 update. Nucleic Acids Res. 2025, 53, D1516-D1525. doi:10.1093/nar/gkae1059 Compound record: https://pubchem.ncbi.nlm.nih.gov/compound/18407952
  8. Bolton EE, Kim S, Bryant SH. PubChem3D: Conformer generation. J. Cheminform. 2011, 3, 4. doi:10.1186/1758-2946-3-4 (cited for contrast: no source 3-D conformer was available to MolGod for this record)
Tripotassium phosphate trihydrate (CAS 22763-03-7), H₆K₃O₇P - 3D ball-and-stick molecular model, engraved element symbols (H K O P), MolGod STL previewDownload image

MG-STL-22763-03-7-ENGRAVED · 299,644 △ · 14 MB · SHA-256 5b782ea8ad5c32ee

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Tripotassium phosphate trihydrate (CAS 22763-03-7), H₆K₃O₇P - 3D ball-and-stick molecular model, MolGod STL previewDownload image

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Model
Tripotassium phosphate trihydrate · 22763-03-7
InChIKey
KPZYAGQLBFUTMA-UHFFFAOYSA-K
License
CC BY-SA 4.0 International (source rights undetermined — not yet granted)
Attribution
MolGod Scientific — Tripotassium phosphate trihydrate (CAS 22763-03-7)
License & provenance record
Tripotassium phosphate trihydrate (CAS 22763-03-7) →
MolGod molecule record
Tripotassium phosphate trihydrate →
Source data
PubChem CID 18407952 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
69e10b51f5e98e72be7e4fd7d9c5ccad61d11a9db64455e2abe7e57bb3a6cd38
MD5 (STL)
1294b13b9e4feb17cbf1267f5c8bfb3c
Model identifier
MG-STL-22763-03-7
Transformation
MolGod Scientific ball-and-stick mesh
Changes
PREDICTED geometry computed by MolGod Scientific (RDKit), NOT verified; rendered as a triangulated mesh.
Wikimedia Commons
not published yet

This license applies to the MolGod-created STL mesh, not automatically to third-party source material.

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