1.Characters: 1)Name: Hydrogen peroxide; H2O2 27.5%; H2O2 50.0% 2)Dangerous grade: 5.1 3)It is a basic chemical raw material.Standard No.:GB1616-88. 4)Appearance:colorless liquid. 5)Purity: 27.5% min and 50% min. 2.Property: H2O2 is a strong oxidizer and will not burn ,but its decomposition liberate oxygen which supports combustion.Contacts with organical substances or some impurities,reducing agent or combustible materirals,H2O2 will decompose rapidly which may cause explosion.Corrosive,cause burns to skin ,eyes, and respiratory tract,Harmful if swallowed or inhaled.