31305866bleachPT2026-03-30 20:22:17BT31298939materials by functionPTNT31319911superoxolPTNT31319912hydrogen peroxidePTNT31319916optical brightenerPTNT31319930sodium chloritePTNT31319926calcium hypochloritePTNT31319928potassium borohydridePTNT31319932sodium perboratePTNT31319934sodium bisulfitePTNT31319937sodium borohydridePTRT31304921bleachingPTRT31319857reducing agentPT