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the abundance of iodine in nature is not in a high proportion, while it exists in every natural object including animals, plants and human body, especially in marine algae with high iodine content. in 1811, french pharmacist courtois,b. discovered iodine in seaweed for the first time. iodine is a metallic dark gray or blue black crystal plate or block. it is easy to sublimate to purple steam with irritant odor, and also toxic and corrosive. it is soluble in organic solvents such as ether, ethanol, etc, forming a purple solution, but slightly soluble in water.
iodine is one of essential trace elements in human body, with the title of " intellectual elements ", the iodine products are widely used in medicine, food, metallurgy, agriculture, dyestuff and other industrial fields. for example:
in medicine-- iodine is used in the manufacture of various iodine preparations, antiseptic, disinfectant, deodorant, analgesic agent, etc, such as iodine (iodine tincture). it is used in the synthesis of potassium iodide, sodium iodide, compound iodine solution, iodized oil, etc. in addition, it has a special resistance to radioactive elements, and the synthesis iodized oil can be used as x optical contrast agents.
in food -- iodine can be used in the synthesis of sodium iodate, potassium iodate and other food additives. potassium iodate is widely used in salt for the elimination of iodine deficiency disorders.
in other industries -- in chemical, metallurgical industries, iodine and iodide are good catalysts of many chemical reactions. in agriculture, iodine is one of the important raw materials in the production of pesticide. and the effect of using iodine as antiseptic, such as 4-iodophenqxyacetic acid, is fairly good. it is the raw material of synthetic organic dyestuff. it can also be used for the production of iodine-tungsten lamps, lamps with shade, etc.
cp2010, while based on the requirements of customers, products in line with bp or usp standard are also available.
specification | cp2010 | bp2012 | usp32 |
content,% | ≥99.5 | 99.5~100.5 | 99.8~100.5 |
chloride bromide,% | ≤0.014 | ≤0.025 | ≤0.028 |
non volatile matter,% | ≤0.05 | ≤0.1 | ≤0.05 |
sulphate,% | ≤0.03 | / | / |
25 kg / plastic barrel,5 kg/ plastic barrel,1 kg/ plastic barrel