Search results
Results From The WOW.Com Content Network
Hydrogen sulfide was a reagent in the qualitative inorganic analysis of metal ions. In these analyses, heavy metal (and nonmetal) ions (e.g., Pb (II), Cu (II), Hg (II), As (III)) are precipitated from solution upon exposure to H2S. The components of the resulting solid are then identified by their reactivity.
Sulfhemoglobinemia. Sulfhemoglobinemia is a rare condition in which there is excess sulfhemoglobin (SulfHb) in the blood. The pigment is a greenish derivative of hemoglobin which cannot be converted back to normal, functional hemoglobin. It causes cyanosis even at low blood levels. It is a rare blood condition in which the β-pyrrole ring of ...
Hydrogen sulfide is also a potent cellular toxin, blocking the cytochrome system and inhibiting cellular respiration. More water-soluble gases (e.g. chlorine, ammonia, sulfur dioxide, hydrogen chloride) dissolve in the upper airway and immediately cause mucous membrane irritation, which may alert people to the need to escape the exposure.
Sulfur water is made out of dissolved minerals that contain sulfate. These include baryte (BaSO 4), epsomite (MgSO 4 7H 2 O) and gypsum (CaSO 4 2H 2 0). [1] It is reported that a notable change in taste to the water is found dependent upon the type of sulfate affecting the water. For sodium sulfate, 250 to 500 mg/litre, with calcium sulfate at ...
Hydrogen sulfide is produced in small amounts by some cells of the mammalian body and has a number of biological signaling functions. Only two other such gases are currently known: nitric oxide (NO) and carbon monoxide (CO). The gas is produced from cysteine by the enzymes cystathionine beta-synthase and cystathionine gamma-lyase.
Proteus vulgaris is a rod-shaped, nitrate-reducing, indole -positive and catalase -positive, hydrogen sulfide -producing, Gram-negative bacterium that inhabits the intestinal tracts of humans and animals. It can be found in soil, water, and fecal matter. It is grouped with the Morganellaceae and is an opportunistic pathogen of humans.
Bad breath. Bad breath, also known as halitosis, is a symptom in which a noticeably unpleasant breath odour is present. [1] It can result in anxiety among those affected. [1] It is also associated with depression and symptoms of obsessive compulsive disorder.
[41] [42] Bismuth subsalicylate is a compound that binds hydrogen sulfide, and one study reported a dose of 524 mg four times a day for 3–7 days bismuth subsalicylate yielded a >95% reduction in faecal hydrogen sulfide release in both humans and rats. [43] Another bismuth compound, bismuth subnitrate was also shown to bind to hydrogen sulfide ...