Phthalic anhydride yog cov organic compound nrog cov mis C₆H₄(CO)₂O. Nws yog cov anhydride ntawm phthalic acid. Phthalic anhydride yog cov khoom lag luam tseem ceeb ntawm phthalic acid. Nws yog thawj zaug anhydride ntawm dicarboxylic acid los ua lag luam.
Phthalic anhydride siv rau dab tsi?
Kev siv thawj zaug ntawm phthalic anhydride (PA) yog li tshuaj lom neeg nruab nrab hauv kev tsim cov yas yas los ntawm polyvinyl chloride(PVC). Kev siv thawj zaug ntawm phthalic anhydride (PA) yog ib qho tshuaj nruab nrab hauv kev tsim cov yas los ntawm vinyl chloride.
Phthalic anhydride yog dab tsi?
Phthalic anhydride tam sim no tau txais los ntawm catalytic oxidation ntawm ortho-xylene lossis naphthalene. Thaum sib cais phthalic anhydride los ntawm kev tsim khoom los ntawm cov khoom xws li o-xylene hauv dej, lossis maleic anhydride, yuav tsum muaj "hloov condensers" series. Phthalic anhydride kuj tuaj yeem npaj los ntawm phthalic acid.
Yuav ua li cas thaum phthalic anhydride?
Thaum heated openly hauv evaporating phaj nws yuav sai sai no hnov nrog lub atmospheric Oxygen ua rau Oxidation tshwm sim. Nws muaj qhov taw tes qis heev ntawm 64 Deg. thiab lub sijhawm nws pib yaj nws tsim cov tshuaj corrosive.
Xim yog phthalic anhydride?
Phthalic anhydride tshwm raws li tsis muaj xim rau dawb lustrous khoom nyob rau hauv daim ntawv ntawm koob nrog cov ntxhiab tsw me me.
