... grade is used in foodstuffs, as bleaching agent and preservative dried fruits, ect. Sodium hydrosulphiteQuality standardHG/2074-2004, JISK1476-1995, HG/T2682 ... grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose ...