Acute sensitivity to Nitokra sp benthic copepod to potassium dichromate and ammonia chloride

Intravascular haemolysis and acute renal failure following potassium dichromate poisoning.

An 18-year-old girl developed acute renal failure 24 hr after ingestion of potassium dichromate. Laboratory data revealed associated intravascular haemolysis. Renal histology showed features suggestive of acute tubular necrosis. She went into diuretic phase after 11 days of oliguria and subsequently regained normal renal function. Both direct toxic damage by dichromate and intravascular haemoly...

Calcification acidifies the microenvironment of a benthic foraminifer (Ammonia sp.)

Acute Toxicity of Heavy Metals, Tributyltin, Ammonia and Polycyclic Aromatic Hydrocarbons to Benthic Amphipod Grandidierella japonica

Benthic amphipod, Grandidierella japonica widely inhabits the Korean coastal waters and is developed as a standard test species for sediment toxicity tests. We exposed G. japonica to various pollutants including 4 kinds of inorganic metals (Ag, Cd, Cu and Hg), tributyltin [TBT], ammonia and 7 polycyclic aromatic hydrocarbon (PAH) compounds (acenaphthene, chrysene, fluoranthene, fluorene, naphth...

Isolation of chromium resistant Bacillus sp. MRKV and reduction of hexavalent chromium potassium dichromate

The ability of Bacillus sp. MRKV isolated from tannery effluent which shows resistant towards hexavalent chromium potassium dichromate (K2Cr2O7) was evaluated in this study. The bacterial strain was assayed for its reducing ability towards K2Cr2O7. The study revealed that the isolated strain has the ability to reduce the hexavalent chromium and the optimal conditions required for the chromium r...

Precise Coulometric Titrations of Potassium Dichromate

This paper reports results of a continuing investigation to evaluate coulometric methods of analysis and to develop highly precise and accurate analytical methods for important materials, based upon this technique. Earlier papers described the coulometric titrations of acids and bases [1] 1 and of halides [2]. The present research is concerned with a typical oxidation-reduction titration, the a...