Bleached Shellac (with wax)

Seedlac is further dissolved in aqueous solution and sieved to remove insoluble impurities. The aqueous shellac solution is treated with sodium hypochlorite to decolorize it. The bleached solution is precipitated with dilute sulfuric acid to obtain pure bleached shellac. The precipitated bleached shellac is ten filtered and washed from water for removal of acid and dried.