Sulfuryl chloride vapor

Sulfonates, aliphatic 388, 389 Sulfonic acids 91 Sulfur dioxide, dipole moment 97 Sulfur dioxide vapor reagent 86 Sulfuric acid, reagent 87,195, 333,411,426 Sulfurous acid reagent (alternative to 2-mer-captoethanol) 381 Sulfuryl chloride vapor reagent 86... 

The recommended procedure for densitometric quantification of fatty acid esters and triacylglycerol separated by Ag-TLC is the successive treatment of the plate with bromine and sulfuryl chloride vapors, followed by heating at 180-200°C (Fig. 2A,B). Correction factors are not required because the quantitative results do not depend on the unsaturation. Spraying with a 50% ethanolic solution of sulfuric acid is suitable for densitometric quantification of triacylglycerols separated by RP-TLC (Fig. 2C). 

The chlorination of methane can be carried out by bubbling the hydrocarbon gas through sulfuryl chloride (bp, 69°C) at a predetermined temperature. The higher the temperature, the larger the ratio of sulfuryl chloride vapor to hydrocarbon. The mixture of gases is passed through a tube filled with inert material and maintained at about 350°C. The flow is sufficiently rapid to constitute turbulent flow. It is necessary to use only a small quantity of catalyst, e,g., carbon otherwise, the decomposition of sulfuryl chloride will be too rapid, and the rate of formation of chlorine will then be greater than the reaction between chlorine and methane. 

Sulfonates, aliphatic la 388, 389 Sulfones lb 321,360 Sulfonic acids la 91 Sulfonylurea derivatives lb 204 Sulfoxides lb 321,358,360,372,373,374 Sulfur comjxiunds lb 338 Sulfur-containing compounds lb 301,339 Sulfur dioxide vapor la 86 -, dipole moment la 97 Sulfur, divalent lb 302 Sulfuric acid la 87,195,333,411,426 Sulfur ions lb 302 Sulfuryl chloride vapor la 86 Sulpyrid lb 268 Sunflower seed oil lb 286 Surfactant-TLC plates la 89 Sweeteners la 44,388-390 Swep la 108... 

Health and Safety Factors. Sulfuryl chloride is both corrosive to the skin and toxic upon inhalation. The TLV suggested by the manufacturer is 1 ppm. The vapors irritate the eyes and upper respiratory tract, causing prompt symptoms ranging from coughing to extreme bronchial irritation and pulmonary edema. The DOT label is Corrosive, Poison. 

S02C12 (g). The data on the heat of vaporization of liquid sulfuryl chloride are Trautz,6 —6.68, from direct calorimetric measurement Trautz, Baisch, and von Dechend,1 —6.68, from vapor pressure data Ogier,7 —7.1, from the difference in the heats of solution of the gas and the liquid. These data yield, for S02C12 (g), Qf=86.2, 86.2, and 85.8, respectively. Trautz and von Dechend1 computed, from equilibrium data for the reaction, S02 (g)+C12 (g) =S02C12 (g), Q = 11.2 whence, for S02C12 (g), Qf=82.1. See also Heumann and Kacklin.1... 

Hazards Wear gloves and use proper ventilation when handling sulfuryl chloride and avoid inhalation of the vapors. Wear gloves and use proper ventilation when handling 99% nitric acid. Avoid inhalation of the poisonous fumes. 

Ethylsulfuryl chloride is similarly obtained by acting on ethyl alcohol with sulfuryl chloride and is a colorless liquid, of 1.44 specifii gravity, which boils with some decomposition at 135 C. (275 F,), yielding a vapor which lacrimates in concentrations as low as 1 1,000,000. A concentration of O.OSO mg. per liter is intolerable and a concentration of 1.00 mg. per liter is toxic. 

Some reagents can be impregnated into the layer before spotting of samples if the selectivity of the separation is not affected. Detection takes place only upon heating after development. This method has been used for the detection of lipids as blue spots on a yellow background on silica gel layers preimpregnated with phosphomolybdic acid. A few detection reagents (HCl, sulfuryl chloride, iodine) can be transferred uniformly to the layer as vapors in a closed chamber rather than as solutions. 

Sulfuryl chloride (SO2CI2) is a colorless liquid that boils at 69°C. Above this temperature, the vapors dissociate into sulfur dioxide and chlorine ... 

Sulfuryl chloride is produced by the reaction of sulfur dioxide with chlorine in the presence of activated carbon.6 Formerly, the reaction was conducted in the vapor phase, but now it is carried out in the liquid phase.50 Activated carbon is suspended in liquid sulfuryl chloride through which equal volumes of sulfur dioxide and chlorine are passed.51 One pound of the more active types of carbon will catalyze the production of 250 pounds of sulfuryl chloride per hour. 

Instead of the use of sulfuryl chloride, SO2 and CI2, which combine to give sulfuryl chloride, can be employed for vapor-phase reactions. When the ratio of SO2 to CI2 is adjusted, it is feasible to produce sulfonic or chlorosulfonic acid derivatives of saturated paraffins in liquid-phase reactions. According to Lockwood and Richmond, a premixed stream of sulfur dioxide and chlorine can be used for the countercurrent photochlorination of white oil (petroleum fraction, sp gr, 0.8033 bp, 283-324 C) at about 50°C. The product, after hydrolysis with 30 per cent sodium hydroxide, yields an aqueous solution of the sodium salt of a sulfonic or chlorosulfonic acid. An increase in the ratio of SO2 to CI2 greatly increases the yield of solubilized product. When a 3 1 ratio is used, the product contains very little chlorine and has good wetting and detergent characteristics. ... 

Properties Colorless to pale yel., clear to cloudy liq. sharp pungent odor sol. in methylene chloride, chloroform, acetic acid, acetic anhydride, trifluoroacetic acid, sulfuryl chloride, liq. sulfur dioxide sol. but dec. violently in water m.w. 116.53 dens. 1.787 vapor pressure 1 mm (32 C) m.p. -81 to -80 C b.p. 151-155 C (dec.) nonflamm. 

Assembly Assemble the apparatus for heating under reflux, and attach a gas trap, such as that of Figure 2.69, to the top of the condenser. Place a spinvane in the vial and add 10 mg (0.010 g) of 1,1 -azobis(cyclohexanecarbonitrile) (ABCN). Working at the hood, sequentially add 0.5 mL of 1-chlorobutane and 0.2 ml (200 piL) of sulfuryl chloride to the vial. Cap and weigh the vial, and then attach it to the reflux condenser, working quickly to minimize introducing vapors of sulfuryl chloride into the atmosphere. 

In addition to iodine, other detection reagents (e.g., bromine, chlorine, formaldehyde, ammonia, diethylamine, HCl, sulfuryl chloride, sulfur dioxide, oxides of nitrogen, and ammonium bicarbonate) (see Section 11) can be applied as vapors. 

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