Ammonium hydrogen sulfide

Laug EP, Draize JH. 1942. The percutaneous absorption of ammonium hydrogen sulfide and hydrogen sulfide. J Pharmacol Exp Ther 76 179-188. 

In such experiments, a preliminary preparation of the often difficulty obtainable pure thioaldehydes is not actually necessary. It suffices to bring the fermenting yeast in contact with the ordinary (non-thio) aldehydes and with ammonia and hydrogen sulfide (ammonium hydrogen sulfide). Such conditions frequently apply for animals and plants, for example, in bacteriological processes and probably also in the metabolism of higher organisms. 

Synonyms ammonium sulfhydrate, ammonium bisulfide, ammonium hydrogen sulfide... 

The denitration solution is prepd by dissolving 8 parts by wt of ammonium hydrogen sulfide in 92 parts of alcohol (30% soln by volume). This aqueous solution is circulated over the grains for about 2 hours during which time the soln is kept up to strength by adding H2S, gas. The grains are then removed from the... 

Synonym Ammonia Water Amfbnioformaldehyde Ammonium Acetate Ammonium Acid Fluoride Ammonium Amidosulfonate Ammonium Amidosulphate Ammonium Benzoate Ammonium Bicarbonate Ammonium Bichromate Ammonium Bifluoride Ammonium Carbonate Ammonium Chloride Ammonium Citrate Ammonium Citrate, Dibasic Ammonium Decaborate Octahydrate Ammonium Dichromate Ammonium Disulfate-Nickelate (II) Ammonium Ferric Citrate Ammonium Ferric Oxalate Trihydrate Ammonium Ferrous Sulfate Ammonium Fluoride Ammonium Fluosilicate Ammonium Formate Ammonium Gluconate Ammonium Hydrogen Carbonate Ammonium Hydrogen Fluoride Ammonium Hydrogen Sulfide Solution Ammonium Hydroxide Ammonium Hypo Ammonium Hyposulfite Ammonium Iodide Ammonium Iron Sulfate Ammonium Lactate Ammonium Lactate Syrup Ammonium Lauryl Sulfate Ammonium Molybdate Ammonium Muriate Ammonium Nickel Sulfate Ammonium Nitrate Ammonium Nitrate-Urea Solution Ammonium Oleate... 

The procedure should be carried out in an efficient fume hood. A solution of ammonium hydrogen sulfide is prepared by saturating a concentrated ammonium hydroxide solution with... 

CI- —SH. Na2CS3 is superior to ammonium hydrogen sulfide for direct... 

Heterocycles also serve as precursors to 1,2,3-thiadiazoles (B-79MI42400). For example, mercapto-substituted triazole (36) exists in equilibrium with thiadiazole (37 equation 35), as does (38) with (39 equation 36). Isothiazoles may react to form benzothiadiazoles (equation 37). Treatment of 1,2,3-oxadiazoles with ammonium hydrogen sulfide (B-61MI42400) provides yet another route to thiadiazoles (equation 38). 

Further nucleophilic reagents used to cleave 2-amino-l,3,4-oxadiazoles include alcoholic potash, primary amines, hydrazine hydrate, phenylhydrazine hydrochloride, acid hydrazides, semicarbazide, thiosemicarbazide, ammonium hydrogen sulfide, and hydrochloric acid. 

Ring hydrolysis of 2-amino-5-arylamino-l,3,4-oxadiazoles by ammonium hydrogen sulfide leads to the formation of l-aryl-4-carbamoylthiosemicarbazide (63).98 Arylhydrazine dicarboxamides... 

SYNS AMMONIUM BISULFIDE AMMONIUM HYDROGEN SULFIDE AMMONIUM HYDROSULFIDE, solution (DOT) AMMONIUM MERCAPTAN AMMONIUM SULFHYDRATE MONOAMMONIUM SULFIDE SIRNIKAMONNY TRUE AMMONIUM SULFIDE... 

This reaction has found little application to mercaptan syntheses since the mercaptans are usually as readily available (by other methods) as the disulfides. The S-S linkage is reduced by zinc in acetic or sulfuric " acid, lithium aluminum hydride, or metallic sodium. y-Hydroxy-propyl disulfide is reduced electrolytically in 70% yield. Reduction by sodium disulfide does not reduce the nitro group in the preparation of p-nitrothiophenol (65%), whereas zinc and acetic acid converts o-nitro-phenyl disulfide to o-aminothiophenol (90%). Disulfides made by the action of ammonium hydrogen sulfide on aldehydes are sources for difficultly available aromatic and heterocyclic mercaptans. The disulfides are reduced by aluminum amalgam and water. ... 

Iminopiperazine when treated with hydrogen sulfide gives piperazine-2-thione (1614), and A -(aminoacyl)aminoacetonitrile with ammonium hydrogen sulfide gave 5-thiopiperazin-2-one (1619). Piperazine-2,5-dithione may be prepared from aminoacetonitrile and hydrogen sulfide in ammoniacal solution (1642). 

Denitration with regeneration of a soluble starch occurs on treatment of the nitrate with ammonium hydrogen sulfide, or alcoholic potassium hydroxide solution. ... 

Ammonium hydrogen sulfide, a solid, decomposes to give NH3(g) and H2S(g). At 25°C, some NH4HS(s) is placed in an evacuated container. A portion of it decomposes, and the total pressure at equilibrium is 0.659 atm. Extra NHslg) is then injected into the containei and when equilibrium is reestablished, the partial pressure of NH3(g) is 0.750 atm. 

All such acids may also be given structure-based systematic names using principles already described in preceding chapters on substitutive and additive nomenclature, so in that respect the acid -containing names are superfluous. Furthermore, many species which would be classified as acids based on their chemical properties are never named as such, e.g. aqua ions such as hexaaquaaluminium(3+), and hydrides and derivatives such as ammonium, hydrogen sulfide (sulfane), etc. The term acid is thus not used consistently. 

Substitution of chlorine in the pyridine part is also possible. Thus, with ammonium hydrogen sulfide in water at 120 °C, 6-benzyl-7-chloro-5-methylpyrido[2,3-r/]pyrimidine-2,4-diamine is converted into the corresponding 7-sulfanyl compound.238... 

Ammonium hydrogen sulfide decomposes according to the following reaction, for which /("p = 0.11 at 250°C ... 

Ammonium Bisulfide, Ammonium hydrogen sulfide ammonium hydrosulfide ammonium sulfhydrate. Hs-... 

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