Molecular formula : I2 Molecular weight: 253.8 Iodine is the basic material in synthesizing organic or inorganic iodide, and is the essencial element for human body, animal or plant. Widely used in phar-maceutical, agricultural, dyestuff , metallurgical, rubber synthesizing, national defense, high-tech in-dustry etc. IODINE QUALITY STANDARD: Chloride&bromide:<0.014% Sulphate:<0.03% Nonvolatile matter:0.04% Assay:100.3% Packing of Products:In 20kg plastic drums