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Since it does not contain nascent oxygen, dry chlorine does not act as a bleaching agent. To solve this problem, it is a potent oxidising agent. It has a strong proclivity for ripping electrons from color-producing molecules and forming stable \[C{l^ - }\] . The most sensitive...
the pH of the filtrate 110 remaining after gypsum 109 is separated 108 is adjusted to 3 to 4 with acid 112 and an oxidising agent such as hypochlorite is added 111 to raise the oxidation state of metals such as manganese, and thereafter an alkaline agent 114 is added 116 to adjust the...
However, using chlorine or bromine as the oxidising agent also produces hydrochloric or hydrobromic acid as a side-product, which needs to be removed from the solution since they can reduce the selenic acid to selenous acid. 然而,用氯气或者溴作为氧化剂会产生盐酸或者氢溴酸作为副产物,它们需要...
Due to the evolution of nascent oxygen, it acts as an oxidising and a bleaching agent. 2CaOCl2 + H2SO4 → CaCl2 + CaSO4 + 2HOCl 2HOCl → 2 HCl + 2 [O] When it is treated with excess of dilute acids, chlorine is evolved. Chlorine gas produced in this way is known as, “...
The mercaptans or sulphides produced are then oxidised by means of a powerful oxidising agent, such as for example nitric acid. By choice and concentration of the oxidising agent, as well as the temperature, the oxidation can be conducted so that pre-eminently the sought aliphatic true ...
for the preparation of compounds of the formula I, wherein R is chlorine, bromine or iodine, m is 1 or 2, and n is 1, and the other substituents are defined as in claim 1, formula (Ic) by reacting a compound of the formula Ic with an N-halosuccinimide and an oxidising agent.A...
dithioic acid, oxidising this to the corresponding thiuram disulphide with an oxidising agent such as potassium ferricyanide, chlorine, bromine, iodine or a peroxide, and converting the disulphide which precipitates to the monosulphide by treatment with sodium or potassium cyanide in an alcoholic ...
They may be produced by condensing an alkali metal salt of a mercapto-arylthiazole with a primary amine in the presence of an oxidizing agent such as hydrogen peroxide, preferably in the presence of a strong, non-oxidising acid, such as sulphuric acid, in an amount equivalent to the alkali...
A process for treating effluent wherein an oxidising agent In the effluent is decomposed on contact with a catalyst bed. The oxidising agent can be a pollutant present in the effluent, for example hypochlorite in the effluent from chlorine-producing brine electrolysis cells or from the scrubbing...