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Determination of Opal in Soil by Alkali Dissolution Anaylsis
Author(s) -
Jones Robert L.
Publication year - 1969
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/sssaj1969.03615995003300060050x
Subject(s) - dissolution , boiling , alkali metal , fraction (chemistry) , chemistry , geology , mineralogy , soil science , chromatography , organic chemistry
Boiling the 20–50 µ fraction of soil for 20 min in 0.5 N NaOH and subsequent colorimetric determination of dissolved silica gives results comparable in precision to the liquid density‐separation method. The main advantage is economy of time.
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