Sodium Thiosulfate Pentahydrate Crystals
* Typically used in dechlorination of water (aquariums, koi ponds, etc..),
* Tanning leather,
Easy to use- To make a concentrate to dechlorinate water try adding just 4 Oz of Sodium Thiosulfate to 1 gallon of water. Then just use 1 -2 drops of your concentrate per gallon of water to be dechlorinated.
*Always test water using chlorine test kit to verify your chlorine activity AFTER dechlorinating.
in large systems you may also need to test for ammonia levels.
Synonyms sodium subsulfite; HYPO; antichlor; Thiosulfuric acid, disodium salt; Thiosulfuric acid (H2S2O3), disodium salt;Na2O3S2