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Ammonium phosphinate

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Ammonium phosphinate
Names
Other names
Ammonium hypophosphite
Identifiers
3D model (JSmol)
ECHA InfoCard 100.029.333 Edit this at Wikidata
EC Number
  • 232-266-0
  • InChI=1S/H3N.H3O2P/c;1-3-2/h1H3;3H2,(H,1,2)
    Key: AQQVTZBWWYVEGR-UHFFFAOYSA-N
  • [PH2](=O)O.N
Properties
H6NO2P
Molar mass 83.027 g·mol−1
Appearance colorless crystals
Density 1.634 g/cm3
Melting point 200
soluble
Hazards
GHS labelling:
GHS07: Exclamation mark[1]
Warning
H315, H319, H335[2]
P261, P305, P338, P351[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Ammonium phosphinate is a chemical compound with the chemical formula NH4PH2O2.[3][4] This is a salt of ammonium and phosphoric acid.

Synthesis

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The effect of ammonia solution on phosphoric acid solution:

HPH2O2 NH3 → NH4PH2O2

Physical properties

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Ammonium phosphonate forms colorless crystals of rhombic system, spatial group C mma, cell parameters a = 0.757 nm, b = 1.147 nm, c = 0.398 nm, Z = 4.[5]

The compound is soluble in water and ethanol, but insoluble in acetone.[6]

Uses

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The compound is usually used as a catalyst for the production of polyamide.[2]

References

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  1. ^ "Ammonium hypophosphite". Sigma Aldrich. Retrieved 2 December 2024.
  2. ^ a b c "Ammonium phosphinate | 7803-65-8, Ammonium phosphinate Formula". ECHEMI. Retrieved 2 December 2024.
  3. ^ Russian Chemical Reviews. Russian Academy of Sciences, The Royal Society of Chemistry and Turpion Limited. 1980. p. 49. Retrieved 2 December 2024.
  4. ^ Emergency Planning and Community RightToKnow Act section 313 reporting guidance for the textile processing industry. DIANE Publishing. p. C-14. ISBN 978-1-4289-0164-3. Retrieved 2 December 2024.
  5. ^ Weakley, T. J. R. (18 August 2011). "The Crystal Structures of Ammonium Phosphinate (Hypophosphite) and Guanidinium Ph08phinate, and the Cell Parameters of Hydrazinium(2 ) Phosphinate". Journal of the Chemical Society of Pakistan. 1 (2): 37. Retrieved 2 December 2024.
  6. ^ Armarego, W. L. F. (27 August 2022). Purification of Laboratory Chemicals: Part 2 Inorganic Chemicals, Catalysts, Biochemicals, Physiologically Active Chemicals, Nanomaterials. Butterworth-Heinemann. p. 8. ISBN 978-0-323-95828-8. Retrieved 2 December 2024.