We are offering high quality iso9001:2008 certification sodium thiosulfate cas:7772-98-7 specification: sodium thiosulfate cas:7772-98-7 cas no.:7772-98-7 assay:99.0% min appearance: colourless transparent monoclinic crystalsapplication: sodium thiosulfate cas:7772-98-7 it is used for photo fixing, electroplating, purification of water and tanning leather .etc package: 25kg plastic woven bag, lined with pe bag, loadig 25mt20'fcl without pallets, also can supply 1000kg plastic woven bag.