... -2335 800 Zinc oxide ZnO, %: 37.0-40.0 Boric anhydride B2O3, %: 45.0-48.0 zinc borate is an environment ... size , μmm3-53-5Zinc oxide ZnO, %37.0-40.0Boric anhydride B2O3 , %45.0-48.0Loss on ignition %13.5-15 ... size , um8-108-10Zinc oxide ZnO, %37.0-40.0Boric anhydride B2O3, %45.0-48.0Loss on ignition ,%13.5-14 ...