Zinc Borate 3.5 H2O 1)MF: 2ZnO 3B2O3 3.5H2O 2) ... -49%. 3)Appearance:White Powder 4)Package:25kgs/bag Zinc Borate 3.5H2O1)Physical and Chemical Properties:Molecular Formula: 2ZnO 3B2O3 ... over the world get interest in 3.5 Water Zinc Borate, and is widely used to manufacture plastic,PVC,PE,PP ... , no mix storage and transportation with acids is allowed. Zinc Borate 3.5 H2O