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a salt or ester of arsenic acid

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On the old dumps of the Ightem mine, well-crystallized adamite occurs commonly in a gray-white dolomite--despite the carbonate milieu it is overwhelmingly arsenates (annabergite, conichalcite, adamite .
In the district, secondary iron arsenates generally form at the expense of lollingite, arsenopyrite, safflorite and skutterudite.
Chromium fixation rates and leaching characteristics of acid copper chromate (ACC) were compared with those of four preservatives that contain chromium/copper: chromated copper arsenate types A, B, and C (CCA-A, CCA-B, CCA-C) and chromated copper borate (CCB), in red pine (Pinus resinosa Ait) sapwood.
In the United States and Canada, industry registrants voluntarily agreed to withdraw chromated copper arsenate (CCA) treatment for use in such residential applications as decks, fences, and playground components effective January 1, 2004, although it is still registered for commercial/industrial products.
One species, Sulfurospirillum barnesii, can metabolize no fewer than nine types of atoms or ions other than arsenates, including sulfur, nitrates, nitrites, and selenates.
The result suggests the presence of a thriving community of anaerobic microbes that used the nitrates as fuel and converted the poisonous arsenites in the water to less-soluble arsenates.
And, since the phosphate concentration usually is well below that of the background arsenic, nature solves the problem by metabolizing the arsenates as a nontoxic lipid by replacing the nitrogen in the phospholipid fat of the algae.
that arsenate ion can exchange with the phosphate group in bezoar brushite, and thus be effectively removed from solution.
Its habit, color and association with other copper arsenates suggested that the specimen could be lavendulan, and an EDS qualitative analysis at the Mining School of Madrid in 1992 confirmed the identification.
Subsequent studies at the Dolores prospect showed abundant lavendulan, associated with some copper arsenates and other secondary minerals.
Carminite is found as gemmy-red crystals up to 2 mm, associated with the other arsenates.
Olivenite is the most common copper arsenate and many specimens have been collected from the Hillside quarry at Stavoren.
Arsenate (AsV) is quickly reduced in blood to AsIII which proposes high toxicity.
Table 2: Clinico-pathological effects caused by sodium arsenate sodium arsenite and other forms of arsenic in various
bituminous coals studied, although arsenate and arsenic associated with organic matter were also found.