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Potassium metaphosphate

  • Name Potassium metaphosphate
  • EINECS232-212-6
  • CAS No. 7790-53-6
  • Density2.393 g/cm3
  • PSA0.00000
  • LogP0.00000
  • Solubilityg/100mL solution H2O: 0.0041 (25°C) [KRU93]
  • Melting Point807 °C
  • FormulaHO3P·K
  • Boiling Point1320℃ [CRC10]
  • Molecular Weight118.07
  • Flash PointN/A
  • Transport InformationN/A
  • AppearanceLIQUID
  • Safety22-24/25
  • Risk CodesN/A
  • Molecular Structure
    Molecular Structure of 7790-53-6 (Potassium metaphosphate)
  • Hazard SymbolsN/A
  • SynonymsN/A
  • Article Data5

Potassium metaphosphate Specification

The Potassium metaphosphate, with the CAS registry number 7790-53-6, is also known as Metaphosphoric acid potassium salt. It belongs to the product categories of Inorganics; Metal phosphate compound. Its EINECS number is 232-212-6. This chemical's molecular formula is HO3P·K and molecular weight is 118.06. Its classification code is Pharmaceutic aid [buffering agent]. It should be sealed and stored in a cool and dry place. It is used as fat emulsifier, humectant, water softener, metal ion chelating agent and organization modifier.

Physical properties of Potassium metaphosphate are: (1)#H bond acceptors: 3; (2)#H bond donors: 1; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 57.2 Å2.

Preparation: this chemical can be prepared by heating potassium dihydrogen phosphateto to the temperature of 400- 700 °C (200 °C or so in theory) and maintaining several hours to do intramolecular dehydration condensation.

You can still convert the following datas into molecular structure:
(1)SMILES: [K+].[O-]P(=O)=O
(2)Std. InChI: InChI=1S/K.HO3P/c;1-4(2)3/h;(H,1,2,3)/q+1;/p-1
(3)Std. InChIKey: OQZCJRJRGMMSGK-UHFFFAOYSA-M

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