Chemistry:Ammonium phosphinate

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Ammonium phosphinate
Names
Other names
Ammonium hypophosphite
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 232-266-0
Properties
H6NO2P
Molar mass 83.027 g·mol−1
Appearance colorless crystals
Density 1.634 g/cm3
Melting point 200
soluble
Hazards
GHS pictograms GHS07: Harmful[1]
GHS Signal word Warning
HH315Script error: No such module "Preview warning".Category:GHS errors, HH319Script error: No such module "Preview warning".Category:GHS errors, HH335Script error: No such module "Preview warning".Category:GHS errors[2]
PP261Script error: No such module "Preview warning".Category:GHS errors, PP305Script error: No such module "Preview warning".Category:GHS errors, PP351Script error: No such module "Preview warning".Category:GHS errors, PP338Script error: No such module "Preview warning".Category:GHS errors[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Ammonium phosphinate is a chemical compound with the chemical formula NH
4
PH
2
O
2
.[3][4] This is a salt of ammonium and phosphinic acid.

Synthesis

Synthesis of ammonium phosphinate may be achieved by the effect of ammonia solution on phosphinic acid solution:

HPH
2
O
2
+ NH
3
→ NH
4
PH
2
O
2

Physical properties

Ammonium phosphonate forms colorless crystals of the orthorhombic system, space group Cmma, 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

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

References

  1. "Ammonium hypophosphite". Sigma Aldrich. https://www.sigmaaldrich.com/RU/en/product/sigald/04401. 
  2. 2.0 2.1 2.2 "Ammonium phosphinate | 7803-65-8, Ammonium phosphinate Formula" (in en). ECHEMI. https://www.echemi.com/products/pid_Rock22946-ammoniumhypophosphite.html. 
  3. (in en) Russian Chemical Reviews. Russian Academy of Sciences, The Royal Society of Chemistry and Turpion Limited. 1980. p. 49. https://books.google.com/books?id=9ynzAAAAMAAJ&q=%22Ammonium+phosphinate%22. Retrieved 2 December 2024. 
  4. (in en) 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. https://books.google.com/books?id=rkvNRwX85ywC&dq=%22Ammonium+phosphinate%22&pg=SL3-PA14. Retrieved 2 December 2024. 
  5. Weakley, T. J. R. (18 August 2011). "The Crystal Structures of Ammonium Phosphinate (Hypophosphite) and Guanidinium Phosphinate, and the Cell Parameters of Hydrazinium(2+) Phosphinate". Journal of the Chemical Society of Pakistan 1 (2): 37. https://jcsp.org.pk/issueDetail.aspx?aid=c52791e9-67c5-486f-93d9-33494898e517. Retrieved 2 December 2024. 
  6. Armarego, W. L. F. (27 August 2022) (in en). Purification of Laboratory Chemicals: Part 2 Inorganic Chemicals, Catalysts, Biochemicals, Physiologically Active Chemicals, Nanomaterials. Butterworth-Heinemann. p. 8. ISBN 978-0-323-95828-8. https://books.google.com/books?id=bN5sEAAAQBAJ&dq=%22Ammonium+phosphinate%22&pg=PA7. Retrieved 2 December 2024.