ʻO ka Phthalic anhydride CAS 85-44-9 Hoʻohana ʻia i ka hana ʻana o ka resin polyester unsaturated
Hoʻolauna huahana
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 liʻiliʻi kona hopena i ka manawa vulcanization a me nā waiwai ʻelemakule o ka huahana i hoʻopau ʻia.
ʻO ka phthalic anhydride, i ka wā e hoʻohana pū ʻia me ka sodium carbonate i loko o ka hui foaming accelerator kiʻekiʻe, hiki ke hoʻonui i nā waiwai foaming. ʻO ka hoʻohana nui ʻana o ka phthalic anhydride ma ke ʻano he mea waena organik i ka hana ʻana o nā plasticizers, nā uhi, a me nā resins polyester unsaturated.
ʻO ka Phthalic anhydride kekahi mea hoʻōla resin epoxy anhydride i hoʻohana nui ʻia. He mea kūʻai ʻole ia, hoʻopuka i ka wela liʻiliʻi i ka wā e hoʻōla ai, a kūpono loa ia no nā hoʻoheheʻe nui a me nā laminates. Hōʻike ka huahana i hoʻōla ʻia i nā waiwai uila maikaʻi a me ka ikaika mechanical, a me ke kūpaʻa kemika maikaʻi loa.
Kahua noi
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 i loko o PVC a me nā huahana ʻē aʻe. 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 nā lāʻau lapaʻau, a me nā pesticides e like me phosmet, metribuzin, a me sodium saccharin.
Ka wehewehe ʻana o ke kūkulu ʻana
CAS Helu 85-44-9
Formula Molekala: C8H4O3
Kaumaha Molekala: 148.12
EINECS Helu 201-607-5
Kikowaena heheʻe 131-134°C (lit.)
Ka paila ʻana 284°C (lit.)
Ka nui o ka nui 500-700 kg/m³ Ka nui 1.53 g/cm³
Ka nui o ka mahu 5.1 (vs. ea)
Kaomi mahu <0.01 mmHg (20°C)
Wahi lapalapa 152°C
Nā kūlana mālama E mālama ma lalo o +30°C.
Ka hiki ke hoʻoheheʻe ʻia 6 g/L (ka palaho lohi).
Ka helu ʻakika (pKa) 2.97 [ma 20°C]
ʻAno o nā kristal Platy
Keʻokeʻo
Ka mālama ʻana a me ka halihali ʻana
Hoʻopili ʻana: e like me ke koi a nā mea kūʻai aku
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