Fatal hydrogen sulphide poisoning usually occurs in confined spaces. We report two fatal accidents in unconfined spaces. The first accident caused the death of three workers who entered an unconfined room in a silo of sludge at the same time that a truck dumped several tons of sludge from water purification stations. The hydrogen sulphide that had accumulated inside the silo spilled out into th...

As one of three gasotransmitters, the fundamental signalling roles of hydrogen sulphide are receiving increasing attention. New tools for the accurate detection of hydrogen sulphide in cells and tissues are in demand to probe its biological functions. We report the p-nitrobenzyl-based ratiometric fluorescent probe RHP-2, which features a low detection limit, high selectivity and good photostabi...

1. We have investigated the effects of ethanethiol, methanethiol and dimethyl sulphide on some metabolic processes of isolated rat hepatocytes, isolated mitochondria from liver and brain and ox-heart submitochondrial particles. 2. Ethanethiol, but not dimethyl sulphide, inhibited both gluconeogenesis and ureogenesis from various substrates in rat hepatocytes, depressed cellular ATP content and ...

Bacterial leaching is the extraction of metals from their ores using microorganisms. The most important player in the bioleaching process is. 4 Bacterial Attachment on Mineral Surfaces 200. 5 Microbial Diversity in Bioleaching Environments 200. Minerals are obtained using a leaching process.greater understanding of the mechanism of bacterial leaching of sulphide minerals. This latter process wh...

MIL 03346 is a newly discovered meteorite from Miller Range in Antarctica, which belongs to the nakhlite group of Martian meteorites [1]. It is an unbrecciated, mediumgrained olivinebearing clinopyroxenite with a cumulate texture, similar to the 6 other previously known nakhlites. This is only the 2 nakhlite in Antarctic collections, the other being Yamato 000593 and its pairs. The Meteorite Wo...

Acid drainage is most common problem or associated with almost all mines containing sulphide deposits and coal containing high pyrite. Acid drainage is caused when rain water and or seepage from rock formation interact with sulphur bearing minerals. It produces water of high acidity with higher metal concentration. Acid drainage is most susceptible to dissolve heavy metals particularly Iron, Zi...

Thionocarbamates are the group of collectors that mostly used for flotation sulphide copper minerals, alone or in combination with xanthates depending on a mineralogical composition ore. In this paper, results study application thionocarbamates slag presented. Chemical analysis smelter sample obtained from Flotation plant Bor, Serbia, showed it contains 3.56% copper, which over 73% is form, as ...