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Preparation of (NH 4 ) 2 SO 4 monocrystals
Author(s) -
Desvignes J.M.,
Remoissenet M.,
Mareček V.
Publication year - 1971
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19710060206
Subject(s) - homogeneous , crystal habit , habit , crystallography , crystal growth , materials science , chemistry , crystallization , mathematics , organic chemistry , combinatorics , psychology , social psychology
The preparation of (NH 4 ) 2 SO 4 crystals has been studied, and the difficulties, especially the formation of numerous parasitical crystals and the irregular growth are discussed from a theoretical point of view and with regard to the performed investigations. Further on the habit of crystals and an acceptable procedure for the growing of homogeneous regular crystals are given. Likewise the effect of temperature, of P(H) of the crystallizing solution, the choice of seed crystals and the admixture of glycerine are reported.