Ammonium phosphinate

Ammonium phosphinate

Names
Other names Ammonium hypophosphite
Identifiers
CAS Number	7803-65-8
3D model (JSmol)	Interactive image
ChemSpider	29342364
ECHA InfoCard	100.029.333
EC Number	232-266-0
CompTox Dashboard (EPA)	DTXSID20884440
InChI InChI=1S/H3N.H3O2P/c;1-3-2/h1H3;3H2,(H,1,2) Key: AQQVTZBWWYVEGR-UHFFFAOYSA-N
SMILES [PH2](=O)O.N
Properties
Chemical formula	H6NO2P
Molar mass	83.027 g·mol−1
Appearance	colorless crystals
Density	1.634 g/cm3
Melting point	200
Solubility in water	soluble
Hazards
GHS labelling:
Pictograms	[1]
Signal word	Warning
Hazard statements	H315, H319, H335 [2]
Precautionary statements	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). Infobox references

Ammonium phosphinate is a chemical compound with the chemical formula NH₄PH₂O₂. ^{[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:

HPH₂O₂ + NH₃ → NH₄PH₂O₂

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 . Retrieved 2 December 2024.
2. "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 Phosphinate, 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.