ʻO ka Phthalic anhydride, i ʻike nui ʻia ʻo phthalic anhydride, he mea maka kemika organik koʻikoʻi. He mea ia e pale ai i ka wela no ka rubber kūlohelohe, isoprene rubber, butadiene rubber, styrene-butadiene rubber, a me ka nitrile rubber, e pale ana i ka wela a hoʻomaikaʻi i ka palekana hana. He hopena liʻiliʻi kona i ka manawa vulcanization a me nā waiwai ʻelemakule o ka huahana i hoʻopau ʻia. He mea kūpono loa ia no nā ʻōnaehana Chemicalbook e loaʻa ana nā thiazole-guanidine a me thiazole-thiuram accelerators, a me nā hui me nā accelerators alkaline, akā ʻaʻole kūpono no nā ʻōnaehana vulcanization ʻole thiuram. He maʻalahi ka hoʻopuehu ʻana, ʻaʻole pua, a he haʻahaʻa ka haumia, akā hiki i nā hui rubber keʻokeʻo ke hōʻike i ka hoʻololi iki ʻana i ka wā e ʻike ʻia ai i ka mālamalama, a ʻaʻole kūpono ia no ka hoʻohana ʻana me nā hui rubber keʻokeʻo.

ʻO ka Phthalic anhydride kahi anhydride cyclic i hoʻokumu ʻia e ka dehydration intramolecular o ka phthalic acid. Hiki iā ia ke hana i ka hydrolysis, alcoholysis, a me ka ammonolysis, a pane me nā hydrocarbons aromatic e synthesize i nā derivatives anthraquinone. Ma ka ʻoihana, hana ʻia ka phthalic anhydride e ka oxidation gas-phase o ka naphthalene me ka ea ma 350-360 °C ma lalo o ka vanadium pentoxide catalysis, a i ʻole ma ka oxidation o o-xylene me ka ea. Hiki ke hoʻohana ʻia ka phthalic anhydride ma ke ʻano he pani no ka phthalic acid, e pane nui ana me nā monohydric alcohols e hana i nā esters, e like me dibutyl phthalate a me dioctyl phthalate.

Nā waiwai kemika: Nā kristal keʻokeʻo e like me ke nila me kahi ʻala iki. Sublimes. Hoʻoheheʻe iki ʻia i ka wai wela a me ka ether, hoʻoheheʻe ʻia i ka acetone, ethanol, benzene, a me pyridine. Hoʻololi i ka waikawa phthalic ke hoʻopili ʻia me ka wai e paila ana a i ʻole ka hoʻopili lōʻihi ʻana me ka wai. Paʻa ka mālama ʻana. Hiki ke lapalapa. ʻO ka hui ʻana o ka lepo-ea he mea pahū; ka palena haʻahaʻa o ka lapalapa (LCL) 12.6 g/cm³. ʻO ka lepo i waiho ʻia he mea weliweli i ke ahi. Mahana puhi aerosol 160°C, mahana hoʻā ʻana 545°C. ʻAwaʻawa; palena hoʻohuihui i ʻae ʻia 1 mg/m³.

ʻO ka Phthalic anhydride kekahi o nā mea maka kemika organik koʻikoʻi loa. ʻO kāna mau mea nui e komo pū ana me ka dibutyl phthalate, dioctyl phthalate, a me diisobutyl phthalate, i hoʻohana ʻia ma ke ʻano he plasticizers no PVC, a pēlā aku. Hiki ke hoʻohana ʻia i ka hana ʻana o nā resins polyester unsaturated, alkyd resins, dyes a me pigments, nā pena like ʻole, nā mea hoʻohui meaʻai, ka laxative phenolphthalein i ka lāʻau lapaʻau, a me nā pesticides e like me phosmet, metribuzin, a me sodium saccharin.

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