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 ¡¡¡¡ Formaldehyde is a kind of common chemical which wildly used in producing resin product and bond such as carbamide aldehyde, phenolphthalein, polyformaldehyde and melamine. And it means much in producing macromolecule compound, synthetic rubber and synthetic fibre. So in agriculture, formalin is used to prevent black fringe and multipolyformaldehyde as suffocating agent in storehouse. ¡¡¡¡In recent years, in the industry of organic synthesis, formaldehyde is extensively used as the material of the chemical products such as pentaerythrite, Wuluotuopin medicine and dyestuff. ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Assistant Manager£ºChen Erliang ¡¡¡¡¡¡¡¡¡¡According to the standard of GB9009-88£¬the index is stated below£º
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