Preparation of Phosphorus Thiochloride

Preparation of Phosphorus Thiochloride. Put 33 ml of phosphorus trichloride and 12 g of finely triturated sulphur into flask 1 (Fig. 103). Place 3 g of anhydrous aluminium chloride into test tube 3. 

Heat flask 7 on a water bath. When the phosphorus trichloride boils, turn test tube 3 in its ground-glass joint and introduce the aluminium chloride in small portions into the reaction mixture. Stop the heating because the reaction is very violent. Have at hand a bath with cold water to be able to retard the reaction by cooling the reaction mixture if required. The reaction ends when the liquid in the flask stops boiling. 

Pour the reaction mixture into the flask of an apparatus for fractional distillation under atmospheric pressure (see Fig. 20). Collect the fraction boiling at 125 °C. Pour the phosphorus thiochloride into a weighed drawn out test tube. Seal the ampoule wear eye protection ). Weigh the ampoule and the remaining parts of the test tube. Write the equation of the reaction. Calculate the yield in per cent. Test the reaction of phosphorus thiochloride with water. Write the equation of the reaction. What is the oxidation state of sulphur in this compound  

Indicate the position of carbon in Mendeleev s periodic table of the elements, the electron configuration and size of its atom, and its oxidation states. 

Preparation and Properties. Charge a Kipp gas generator for producing carbon dioxide, i.e. carbon(IV) oxide. Fill three dry jars with the gas (how can you convince yourself that the jars are 

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