... Properties: white or light yellow crystalline powder USES: used as a condiment mordant ... , also, Property: white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density ... bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended ... freshen agent (e.g. day lily, seafood, fruit and vegetable etc).(2) Industry Grade: Mordant of ...