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Characterization of Taranakites and Ammonium Aluminum Phosphates
Author(s) -
Frazier A. W.,
Taylor A. W.
Publication year - 1965
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1965.03615995002900050021x
Subject(s) - differential thermal analysis , infrared , absorption (acoustics) , ammonium , diffraction , thermal analysis , characterization (materials science) , infrared spectroscopy , chemistry , analytical chemistry (journal) , inorganic chemistry , crystallography , nuclear chemistry , thermal , materials science , physics , optics , organic chemistry , nanotechnology , composite material , meteorology
Optical, X‐ray diffraction, infrared absorption, and differential thermal analysis data are presented for the salts K 3 Al 5 H 6 (PO 4 ) 8 ·18H 2 O, (NH 4 ) 3 Al 5 H 6 (PO 4 ) 3 ·18H 2 O, (NH 4 ) 2 AlH(PO 4 ) 2 ·4H 2 O, NH 4 AlPO 4 OH·2H 2 O, and NH 4 AlPO 4 OH·3H 2 O. Where the particle size is too small for determination of optical characteristics, a combination of X‐ray diffraction and infrared absorption methods is the most satisfactory means of identification of these compounds. Differential thermal analysis is unsuitable for the ammonium salts.