... in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products, 4. It is used in mineral ... , the compound of thiourea and other sulphides. 5. It is used as reducing ... , vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms. Quality Standard: INDEX90%88%85 ...