20859-38-5

Basic information

• Product Name: AMMONIUM MONOFLUOROPHOSPHATE
• Synonyms: Ammonium hydrogen fluoride phosphate
• CAS NO: 20859-38-5
• Molecular Formula: FH2 O3 P . H3 N
• Molecular Weight: 0
• Mol File: 20859-38-5.mol
• Article Data: 2

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 1.881g/cm³
• CAS DataBase Reference: AMMONIUM MONOFLUOROPHOSPHATE(CAS DataBase Reference)
• NIST Chemistry Reference: AMMONIUM MONOFLUOROPHOSPHATE(20859-38-5)
• EPA Substance Registry System: AMMONIUM MONOFLUOROPHOSPHATE(20859-38-5)

Safety Data

• Hazardous Substances Data: 20859-38-5(Hazardous Substances Data)

Usage

InChI:InChI=1/FH.H3N.H3O4P/c;;1-5(2,3)4/h1H;1H3;(H3,1,2,3,4)/p-2

Upstream product

• 15252-72-9 ammonium difluorophospate 
• 7803-63-6 ammonium bisulfate 
• 13537-32-1 fluorophosphoric acid 

Relevant articles and documents

Two modifications of NH4HPO3F: Synthesis and crystal structure

The α and β modifications of NH4HPO3F were synthesized and characterized with single crystal X-ray diffraction. The crystal structure of α-NH4HPO3F determined at 180 K is monoclinic, space group P21/n, with a = 7.4650(1), b = 15.586(2), c = 7.5785(9) A, β = 108.769(9)°, V = 834.9(2) A3, Z = 8, and R1 = 0.0376 and wR2 = 0.0818. β-NH4HPO3F measured ar 310 K crystallizes in the triclinic space group, P1, with a = 7.481(1), b = 7.511(1), c = 7.782(1) A, α = 84.31(1), β = 84.20(1), γ = 68.67(2)°, V = 404.31(9) A3, Z = 4, and R1 = 0.0254 and wR2 = 0.0735. A phase transition was not observed between 180 and 310 K for β-NH4HPO3F. Both modifications of NH4HPO4F consist of HPO3F- and NH4+ units. Two pairs of two unique anions are linked to each other by O-H ... O hydrogen bonds to form cyclic tetramers held together by N-H ... O bonds. No O-H ... F or N-H ... F bonds were observed.