REQUIREMENTS Chemicals

The following materials are common for the whole batch of students at the Study Centre, since this is a demonstration exercise.

Acetone (or ethyl methyl ketone or glacial acetic acid or methanol or dioxan)              1 ml

Sodium hydroxide (or potassium hydroxide)                                                             1 pellet

Diethyl ether                                                                                                          1 ml

Ethyl acetate (or hexane or carbon disulphide or                                                        1 ml

petroleum ether or carbon tetrachloride)

Toluene (or benzene or nitrobenzene                                                                        1 ml

or chlorobenzene or chloroform)

Soap or detergent solution                                                                                       10 ml

Sodium metal 5 small pieces

Ethanol (or propan -2-01)                                                                                         50 ml

Concentrated sulphuric acid                                                                                       2 ml

Sodium carbonate 40 g

Calcium oxide (freshly heated and cooled lime stone is 2g preferable)

Aniline                                                                                                                     5 ml

2 M Hydrochloric acid                                                                                               10 ml

Sodium thiosulphate crystals 5 g

Iodine