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Author	Topic: SOCl2
Fjp92 Frequent Poster	posted February 18, 2000 09:40 AM Can i make SOCl2 by bubbeling SO2 Through HCL I ll be glad if any one can help
nbk2000 Moderator	posted February 18, 2000 11:53 AM I believe what you're refering to is sulphyrl chloride. In the laboratory it is convenient to prepare it by synthesis from chlorine and sulphur dioxide : SO2 + Cl2 = SO2Cl2 in presence of camphor or activated carbon. 10 gm. camphor are placed in a flask of about 500 ml. capacity fitted with a reflux condenser which is connected to an aspirator. A glass tube with a three-way cock leads to the bottom of the flask, which is cooled with iced water while a current of sulphur dioxide, dried by means of sulphuric acid, is passed in. The gas is rapidly absorbed by the camphor, and when this is reduced to a liquid the gas is discontinued and a current of dry chlorine bubbled through. When the chlorine is no longer absorbed and its color no longer disappears, it is replaced by sulphur dioxide and then chlorine is again passed in. When the flask contains 30-40 ml. liquid, both gases are passed in together, with external cooling, and when sufficient liquid has been produced, the mixed-gas current is stopped and the product distilled, collecting the fraction passing over between 68 C. to 70 C., which consists of sulphuryl chloride. ------------------ "The knowledge that they fear is a weapon to be used against them."
Fjp92 Frequent Poster	posted February 18, 2000 03:43 PM Hell thanks this will help a lot! Yust a few more questions. Acording to my text book the stuff is called thionyl chloride (I guess you get a lot of different names for the same thing.) Camphor:??? Is this camphor oil?? You know the stuff you get in the pharmacy? ( Also used in the making of ointments and stuff) Is this the stuff i can use?? If i want to make SO2 Can i simply burn sulfur in plenty of air or will i get SO or a mix, and if a mix will it still work for the reaction?
Fjp92 Frequent Poster	posted February 24, 2000 02:10 PM Now that NBK is not here can any one please help me with the above question!! I Be happy for any help.
HMTD Factory Frequent Poster	posted February 24, 2000 06:03 PM Alrighty, you will get some sulphur vapour, some SO, and some SO3, but mostly in very high percentage it's SO2. Camphor used to be in mothballs but not anymore, try Chinese herbal medicine store, see if they have camphor. HF
nbk2000 Moderator	posted February 24, 2000 09:21 PM I thought it was a typo, but you were looking for thionyl chloride, not sulphyrl chloride. They're 2 entirely different chemicals. I'm not sure how thionyl is made, but I believe it requires sulfur trioxide (SO3). ------------------ "The knowledge that they fear is a weapon to be used against them."
nbk2000 Moderator	posted February 26, 2000 12:44 AM I looked it up in the merck index today and it says "...prepared by oxidation of sulfur dichloride (S2Cl2) with sulfur trioxide (SO3). And it refers to a US patent #2,362,057 for the preparation. ------------------ "The knowledge that they fear is a weapon to be used against them."

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