National Peroxide Limited manufactures Tetrahydrate Sodium Perborate with Molecular Weight 153.9. National Peroxide Limited is an ISO 9001:2000 certified company. National Peroxide Limited also manufactures Hydrogen Peroxide in different concentration, different types of Sodium Perborate and Per Acetic Acid. The Tetrahydrate Sodium Perborate with Molecular Weight 153.9 is used in detergent industry as bleach activator for stain removal. The Tetrahydrate Sodium Perborate with Molecular Weight 153.9 also used in denture cleaner, hair dye as fixer, oxidation of vat dyes as well as in laundry. The Tetrahydrate Sodium Perborate with Molecular Weight 153.9 is a white free flowing odourless powder with bulk density of about 0.7-0.9 gms/cc without any lumps.