Sulphur chloride

The Sulphur acts as a chlorine carriei by forming sulphur chloride. 

The hydriodic acid is then decomposed by chloiine, and ICl regenerated. Phosphorus acts by for.ming the chloride of phosphorus from which the acid chloride is produced, which is more readily attacked by chlorine than the acid. Sulphur behaves in a similar fashion, sulphur chloride converting the... 

They argued that pre-equilibria to form Cl+ or S02C1+ may be ruled out, since these equilibria would be reversed by an increase in the chloride ion concentration of the system whereas rates remained constant to at least 70 % conversion during which time a considerable increase in the chloride ion concentration (the byproduct of reaction) would have occurred. Likewise, a pre-equilibrium to form Cl2 may be ruled out since no change in rate resulted from addition of S02 (which would reverse the equilibrium if it is reversible). If this equilibrium is not reversible, then since chlorine reacts very rapidly with anisole under the reaction condition, kinetics zeroth-order in aromatic and first-order in sulphur chloride should result contrary to observation. The electrophile must, therefore, be Cli+. .. S02CI4- and the polar and non-homolytic character of the transition state is indicated by the data in Table 68 a cyclic structure (VII) for the transition state was considered as fairly probable. 

Sulphur chlorides Sulphuric acid, fuming Sulphur trioxide, inhibited 2-Sulphuryl chloride... 

Sulphur combusts spontaneously in fluorine at ambient temperature. Different sulphur chlorides (S2CI2 then SCy are formed with chlorine. The reaction is not considered dangerous. 

Sulphur chlorides No data No data Mo data No data r30 R R No data ND No data... 

A compounding ingredient with the main functions of a processing aid or extender. Dark factice (sulphur factice) is produced by heating certain unsaturated oils (principally rape seed oil) with sulphur. White factice (sulphur chloride factice) is prepared by treating rape seed oil with sulphur monochloride at normal temperatures. Factice is still sometimes referred to as mbber substitute or simply sub , but these terms are not recommended. 

Also termed sulphur chloride factice or cold factice. That type of factice prepared by treating unsaturated oils, such as rape oil or castor oil, with sulphur monochloride. Since the reaction is exothermic care must be taken to keep the temperature as low as possible. See Factice. White Metal... 

The aromatic mercaptans react with chlorine to form aryl sulphur chlorides (Zincke) phenyl sulphur chloride is a deep red, very reactive liquid (Lecher) ... 

Preparation of Sulphur Chlorides, (a) Preparation of a Mixture of Sulphur Chlorides. Perform the experiment in a fume cupboard ) Melt... 

Pour the liquid into four test tubes (ire a fume eupboard, wear eye protection ). Carefully add water to one of them, and introduce some sulphur into another one. What happens Write the equations of the reactions. Keep two test tubes with sulphur chloride for the following experiments. 

Preparation of Sulphur Dichloride. (Perform the experiment in a fume cupboard ). Put a test tube with sulphur chloride obtained in the preceding experiment into a beaker with ice and pass a strong stream of dry chlorine through the liquid. How does the colour of the liquid change ... 

Fig. 69. Setups for the chlorination of sulphur (a) and the fractional distillation of sulphur chlorides (6)...

Nitrogen sulphide, N4S4, m.p. 178°C, was prepared by Soubeiran [115] by the action of ammonia on sulphur chloride dissolved in benzene... 

If sulphur is heated to 180° C. and then cooled, it becomes more soluble in carbon disulphide also a saturated solution of sulphur chloride in toluene at the ordinary temperature will, after being heated to the neighbourhood of 180° C. and cooled again, dissolve yet more sulphur. These observations led to the discovery of a third modification in molten sulphur. This form of sulphur, distinguished as n-sulplmr, is formed to some extent when ordinary sulphur is heated to 125° C. The optimum temperature for its formation is near 180° C., when the liquid contains approximately 6-5 per cent, of S with 20-5 per cent, of... 

Under suitable conditions, certain chemical reactions will give rise to nacreous sulphur the most satisfactory result is obtained by allowing slow inter-diffusion of solutions of sodium thiosulphate and potassium hydrogen sulphate to occur.7 Another method involves the gradual decomposition of sulphur chloride or bromide by the vapour of water or methyl alcohol at the ordinary temperature.8 The decomposition of calcium polysulphidcs by hydrochloric acid,9 and of hydrogen persulphide by the addition of alcohol, ether, ethyl acetate or other organic solvents, also yields sulphur of the desired modification. 

Insoluble Amorphous Sulphur is produced, usually together with some sulphur soluble in carbon disulphide, by many reactions in which sulphur is set free. The slow decomposition of sulphur chloride or bromide by water, which may require several days for completion, gives a very stable form of insoluble sulphur.8 The action of mineral acids on... 

When a concentrated solution of ferric chloride is rapidly mixed with fifty to one hundred times its volume of aqueous hydrogen sulphide solution the liquid assumes a transient blue colour, sulphur subsequently precipitating in the ordinary yellowish-white form.2 Sulphur with a blue coloration is also obtained in the interaction of carbon disulphide and sulphur chloride, for the preparation of carbon tetrachloride, under the catalytic influence of ferric chloride,... 

By submitting various metallic sulphides, e.g. those of bismuth, silver, cadmium or zinc, to the action of a solution of sulphur chloride in benzene or toluene, a greenish-blue precipitate of sulphur is obtainable, but the product invariably contains several units per cent, of mineral impurity.2 The suggestion that Ultramarine owes its colour to the presence of a blue variety of sulphur appeal s to have little probability, especially in view of the stability of this substance towards heat,4 and indeed the true nature of the blue- or green-coloured precipitates of sulphur, obtained by any of the afore-mentioned methods, requires much more experimental investigation before the existence of a blue or green modification of sulphur can be accepted. 

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