Ethyl hydrosulphide

Synonyms AI3-26618 BME EINECS 200-837-3 Ethanethiol Ethyl hydrosulfide Ethyl hydrosulphide Ethyl sulfhydrate Ethyl thioalcohol FCY LPG ethyl mercap-tan 1010 Mercaptoethane 1-Mercaptoethane NSC 93877 0-2712 NSC 29026 SCC Thio-ethanol Thioethyl alcohol UN 2363... 

Isomeric Sulphites.—The evidence is this —Sulphur alcohol or ethyl-hydrosulphide (also termed mercaptan ), when oxidised by boiling with dilute nitric acid, is converted into ethyl-sulphonic acid, thus ... 

The depression by hydrosulphide ion is in a similar manner as hydroxyl depression, i.e. there is a critical pH for each HS ion concentration at a constant xanthate concentration above which no flotation is possible. In the case that the hydrophobic entity is disulphide, the mineral will be depressed when the reaction (3-5a) or (3-6a) occurs before the reaction (1-3). Thus for the pyrite /ethyl xanthate system, pyrite will be depressed if the oxidation reaction (3-5a) takes place prior to the oxidation reaction (4-35). 

Reductive hydrolysis of n-butyl nitrate in an aqueous solution of ethyl alcohol in the presence of sodium hydrosulphide or ammonium hydrosulphide has been carried out by Merrow, Cristol and van Dolah [41], This is a complicated chemical reaction. As the result of hydrolysing the nitrate in the presence of sodium hydro-sulphide (the alkalinity of the solution corresponds to pH 10-11) 93% of nitrite ions and 7% of ammonia are obtained from the ester group nitrogen. When ammonium hydrosulphide is used, the nitrite ions initially produced rise to a maximum concentration and then fall to zero owing to the reducing action of the ammonium hydrosulphide. The reduction process takes place more effectively when the pH is above 10. 

Xanthic acid was investigated by Couerbe. Zeise discovered thiocarbamic acid by the action of carbon disulphide on ammonia, the addition compound of ethylene and platinous chloride (Gekohltenwasserstoffes Chlorplatin), and mercaptan (from corpus mercurium captans), by distilling potassium hydrosulphide with potassium ethyl sulphate KKS +0211 0—... 

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