Chemical preparation, crystallographic characterization, vibrational study and thermal behavior of a new cyclotriphosphate CaNH4P3O9 · H2O. (11th November 2022)

• Record Type: Journal Article
• Authors: Majdi, El Mehdi; Tridane, Malika; Zerraf, Soufiane; Belaaouad, Said
• Is Part Of: Phosphorus, sulfur, and silicon and the related elements. Volume 197:Number 11(2022)
• Page Start: 1160
• Page End: 1169
• Publication Date: 2022-11-11
• Subjects: Cyclotriphosphate -- XRD -- IR -- TGA -- DTA; Sulfur compounds -- Periodicals; Organosulfur compounds -- Periodicals; Phosphorus compounds -- Periodicals; Organophosphorus compounds -- Periodicals; Silicon compounds -- Periodicals; Organosilicon compounds -- Periodicals; 546
• DOI: 10.1080/10426507.2022.2065675
• Languages: English
• ISSNs: 1042-6507

Abstract

Abstract: Chemical preparation, crystallographic characterization, IR studies and thermal behavior are presented for the new cyclotriphosphate CaNH4 P3 O9 · H2 O and its anhydrous form CaNH4 P3 O9 . CaNH4 P3 O9 · H2 O was prepared by the method of ion exchange resin. CaNH4 P3 O9 · H2 O crystallizes hexagonal, space group is P63 or P63 /m or P63 22 with the following unit-cell dimensions: a = b = 14.75(2) Å, c = 9.934(3) Å and Z = 8. The total dehydration of CaNH4 P3 O9 · H2 O, between 70 °C and 180 °C, leads to its anhydrous form CaNH4 P3 O9 . CaNH4 P3 O9 crystallizes in the monoclinic space group P21 /n, Z = 4, with the following unit-cell dimensions: a = 7.446 Å, b = 12.46 Å, c = 10.050 Å, β = 90.11° and Z = 4. CaNH4 P3 O9 · H2 O is stable until its melting point at 1050 °C. The thermal behavior of CaNH4 P3 O9 · H2 O was investigated and interpreted by comparison with IR absorption spectrometry and X-ray diffraction experiments. Graphical Abstract: UF0001