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1
Encyclopedia of Soil Science
soil type is a Tidalic Fluvisol (Thionic). Within the field of hydric soils, the sulfate-
sulfide geochemical fence divides the conditions of Gleysol formation from those
of thionic or sulfidic soils (Figure H10). 3. Figure H10 Detail of Figure H7 showing
...
2
Advanced Mineralogy: Volume 3: Mineral Matter in Space, ...
Microorganisms used in biogeotechnology, include: - Thionic bacteria, oxidizing
sulfides and sulfur. Sulfate-reducing bacteria, used as metal precipitants in
settlers in sewage purification. - Microorganisms which accumulate and
precipitate ...
3
The Soils Used for Rice Production in Cambodia: A Manual for ...
A Manual for Their Identification and Management Thomas Oberthür, Pheav
Sovuthy. Thionic phase. The thionic phase of the Kbal Po soils are similar to
acidic sulphate soils. This phase has a subsoil pH below 4.5. The presence of
bright ...
Thomas Oberthür, Pheav Sovuthy, 1997
4
Journal of the Society of Chemical Industry
A.CIDS. ALKALIS, AND SALTS. Researches on the Thionic Series. Berthclot.
Compt. Kend. 108, 773—779. The author has determined the heats of formation
of the acids of the thionic series by oxidising their potassium and sodium salts
with a ...
5
Journal of the Society of Chemical Industry
The author has determined the heats of formation of the acids of the thionic series
by oxidising their potassium and sodium salts with a solution of bromine in
potassium bromide. Complete conversion into sulphuric acid takes place in a few
...
Society of Chemical Industry (Great Britain), 1889
6
THE PRINCIPLES OF CHEMISTRY
On this view 67 of the structure of the thionic acids and salts, it is also clear how
all the thionic acids, like thiosulphuric acid, easily give sulphur and sulphides,
with the exception only of dithionic acid, H2S2O0, which, judging from the above,
...
7
The Principles of chemistry
On this view 67 of the structure of the thionic acids and salts, it is also clear how
all the thionic acids, like thiosulphuric acid, easily give sulphur and sulphides,
with the exception only of dithionic acid, H2S206, which, judging from the above,
...
Dmitry Ivanovich Mendeleyev, 1902
8
World Reference Base for Soil Resources 2006: A Framework ...
Thionic horizon General description The thionic horizon (from Greek tbeion,
sulphur) is an extremely acid subsurface horizon in which sulphuric acid is
formed through oxidation of sulphides. Diagnostic criteria A thionic horizon has: 1
. a pH ...
9
A Handbook of Soil Terminology, Correlation and Classification
There are five soil group families in the suborder: Very Acid Gleisols ≈ Gleysols (
Hyperdystric) / Gleysols (Thionic) Within the soil group family there is one great
soil group: • Savanna Grey Very Acid Gleisols ≈ Gleysols (Hyperdystric) ...
Pavel Vladimirovich Krasilʹnikov, 2009
10
A Text Book of Inorganic Chemistry
Thionic acids, H2S,,O6 (n = 2 to 6). By the term thionic acids is meant those acids
which contain two sulphonic groups — SO-.OH. linked together either directly or
through sulphur. Since dithionic acid stands apart from other acids in properties,
...
