16721-80-5

For synthesis of organic intermediate in dyeing industry and for preparation of sulfur dyestuff; for tanning of leather making industry and for waste water treatment; for removal of free sulfurin fertilizer industry; raw material for manufacturing of ammonium sulfide and ?ethyl mercaptan; for mineral separation of copper ore; for dyeing of sulphurous acid in manufacturing of artificial fiber

7681-52-9

As strong oxidizing agent, bleaching agent and water purifying agent in paper making, textile and light industry; having bleaching, sterilization and disinfection effect; for water purifying, bleaching of paper pulp; for manufacturing of chloramines in medical industry

1717-00-6

As cleanser and foaming agent to replace CFC-11 and CFC-11