Potassium metabisulfite16731-55-8100 % similar Sodium metabisulfite7681-57-473 % similar Potassium sulfite10117-38-135 % similar Potassium sulfate7778-80-535 % similar Potassium peroxymonosulfate10058-23-832 % similar Potassium thiosulfate10294-66-331 % similar Potassium sulfamate13823-50-231 % similar Potassium tetrathionate13932-13-331 % similar Potassium bisulfate7646-93-731 % similar Potassium persulfate7727-21-131 % similar Potassium pyrosulfate7790-62-731 % similar