REAGENTS AND THEIR COMPOSITIONS

Lucas reagent---------------Hcl+ZnCl2(anhdrous)-----------distiguishes alcohol types.

Hinsberg reagent-----------benzenesulphonyl chloride-------separation of amines.

Nesslers reagent------------K2HgI4--------------------- detection of NH4+ ion.

Tollens reagent-------------AgNO3+NaOH+NH4OH------------detection of CHO group.

Molisch reagent-------------Napthol(alc.)-----------------detection of carbohydrates.

Hofman reagent-------------diethlyl oxalate-------------separation of amines.

Tildons reagent--------------nitrosyl choloride-----------detection of olefenic linkage.

Benedicts reagent------------Alkaline Cu2++citrate ions---------detection of CHO group.

Lithopone--------------ZnS+BaSO4------------- used as paint.

Rectified spirit-------------90-95% ethanol------------