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Hydrogen Sulphide

,Hydrogen Sulphide

Hydrogen Sulphide
Publications: 2,108| Citation Count: 9,532
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    • Hydrogen sulphide (H2S) is a common industrial pollutant as well as an endogenous neural transmitter/ neural modulator. Experiments were performed on the pond snail Lymnaea stagnalis to determine the acute effects of low-level exposure to H 2S (50-100·μmol·l-1) on aerial respiratory behaviour, associative learning, and its subsequent consolidation into long-term memory (LTM). A 3-neuron network whose sufficiency and necessity have been demonstrated drives aerial respiratory behaviour in Lymnaea...

    David Rosenegger, et al. Learning and memory in Lymnaea are negatively altered by acute low-lev...

    • Hydrogen sulphide (H2S) is a colourless, transparent gas that is heavier than air (SG = 1.18). It is extremely flammable and is explosive across a very wide range of concentrations 4.3–46% by volume in air (in comparison, methane is explosive at 5–15% volume in air). The boiling point of hydrogen sulphide is –60°C and so it exists as a gas at standard conditions; it burns with a blue flame to produce water and sulphur dioxide, which is also a very toxic gas...

    Nicole Williamson. Problems Caused by Microbes and Treatment Strategies Health and Safety...

    • Hydrogen sulphide is an essential electron donor in the photosynthesis of sulphur bacteria. In addition, it has been known to be an inhibitor of photosynthesis in green plants. More specifically, it is assumed that sulphide interacts with the oxygen-evolving system. If the view is accepted that there is a more or less uniform concept of photosynthesis which is valid for all assimilating organisms, the role of sulphide as an inhibitor in green plant photosynthesis hardly seems to be acceptable...

    Karl Knobloch. Photosynthetische Sulfid-Oxydation Grüner Pflanzen

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