Product Description:Appearance: 2-7mm white magic flakes like fish scalePackage: 1KG / bagShape: FlakeFormula: H3BO3CAS No: 10043-35-3Melting point: 169°C Boiling point: 300°CRelative molecular mass: 61.83Pure:≥99.5% The best quality service:Your satisfaction is the purpose of our serviceIf you are not satisfied with the performance of the productPlease contact us We will provide you with RETURNLESS REFUND services