1. food grade and technical grade 2. purity: 74%, 77%, 80%, 95% ... : white powder/ flakes Purity: 74%, 77%, 80% Type: technical grade, food grade Packing: 25kg/ plastic bag Quantity: 1 x FCL (20 ... , refining agent, anti-freezing agent, dehydrant. It can also use in food as cryogen. ♥Specification ITEMSSPECIFICATIONCONTENT80%MINNaCl:2.5%MAXSULFATE0.1%MAXINSOLUBLE ...