Anhydride yePhthalic, inozivikanwa sephthalic anhydride, chinhu chakakosha chemakemikari eorganic. Inoshandiswa zvakanyanya pakurwisa kupisa kwerabha yechisikigo, isoprene rabha, butadiene rabha, styrene-butadiene rabha, uye nitrile rabha, ichidzivirira kupisa uye inovandudza kuchengetedzeka kwekushanda. Haina simba rakawanda panguva ye vulcanization uye hunhu hwekukwegura kwechigadzirwa chapera. Inonyanya kushanda kune Chemicalbook systems ine thiazole-guanidine uye thiazole-thiuram accelerators, pamwe chete nemakemikari ane alkaline accelerators, asi haina kukodzera kune thiuram-free vulcanization systems. Inopararira nyore nyore, haitumbuki, uye haina kusvibiswa kwakawanda, asi mishonga yerabha chena inogona kuratidza kusviba kudiki kana yaiswa muchiedza, uye kazhinji haina kukodzera kushandiswa nemakemikari erabha machena.

Phthalic anhydride ianhydride inotenderera inoumbwa nekushaikwa kwemvura mumuviri kwephthalic acid. Inogona kunyura mumvura, kusanganiswa nealcohol, uye kusanganiswa neammonolysis, uye inosanganiswa nearomatic hydrocarbons kugadzira anthraquinone derivatives. Muindasitiri, phthalic anhydride inogadzirwa nekusanganiswa kwegas-phase kwenaphthalene nemhepo pa350–360 °C pasi pevanadium pentoxide catalysis, kana nekusanganiswa kweo-xylene nemhepo. Phthalic anhydride inogona kushandiswa sechinotsiva phthalic acid, ichinyanya kusangana nemonohydric alcohols kugadzira maesters, akadai sedibutyl phthalate uye dioctyl phthalate.

Hunhu hwemakemikari: Makristasi machena akafanana netsono ane hwema hushoma. Anopenya. Anonyungudika zvishoma mumvura inopisa uye ether, anonyungudika muacetone, ethanol, benzene, uye pyridine. Anoshanduka kuita phthalic acid kana asangana nemvura iri kufashaira kana kubata mvura kwenguva refu. Kuchengetedza kwakasimba. Kunobvira. Musanganiswa weguruva nemhepo unokonzera njodzi yekuputika; muganho wakaderera wekubvira (LCL) 12.6 g/cm³. Guruva rakaiswa rinokonzera njodzi yemoto. Tembiricha yekupisa yeaerosol 160°C, tembiricha yekuzvibatidza yega 545°C. Chepfu; muganho wehuwandu unobvumirwa 1 mg/m³.

Phthalic anhydride ndeimwe yezvinhu zvakakosha zvemakemikari emuchadenga. Zvinhu zvikuru zvinobva mairi zvinosanganisira dibutyl phthalate, dioctyl phthalate, uye diisobutyl phthalate, zvinoshandiswa semapurasitiki ePVC, nezvimwewo. Inogona zvakare kushandiswa mukugadzira maresini epolyester asina kuguta, maresini ealkyd, madhayi nemapigment, pendi dzakasiyana-siyana, zvinowedzera chikafu, phenolphthalein inorapisa mukurapa, uye mishonga yekuuraya zvipembenene yakaita sephosmet, metribuzin, uye sodium saccharin.

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