Zvigadzirwa zvemakemikari zveMeta-Xylene zvakachena zvakanyanya

Mufananidzo Wakaratidzwa weHigh-Purity Meta-Xylene Chemical Feedstock

tsananguro pfupi:

Xylene (inowanzonzi dimethylbenzene) ihydrocarbon inonhuhwirira inokosha mumakemikari emaindasitiri. Iine ma isomers matatu (o-, m-, uye p-xylene), Xylene inotengeswa inowanzova musanganiswa wakagadzikana, unoonekwa semvura isina ruvara, inoonekera ine hwema hwakasiyana hwekunhuhwirira.

Iyi Xylene inoshanda zvakasiyana-siyana inotanga yashanda semushonga unonyungudutsa une simba guru: inonyungudutsa maresini, rabha, uye madhayi ekuputira, ma inki ekudhinda, uye kuchenesa kwemagetsi. Pamusoro pekunyungudutsa, Xylene inoshanda sechinhu chakakosha chekudya—inogadziriswa kuita p-xylene (chinhu chinotangira mapurasitiki ePET) uye makemikari akanaka ekugadzira machira nekurongedza.

Zvinonyanya kukosha kuti Xylene inobvira moto, inoda mhepo yakachena panguva yekubata. Pasinei nematanho aya ekudzivirira, Xylene ichiri chinhu chakakosha chinotsigira makemikari emazuva ano uye magadzirirwo emagetsi.

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Tsananguro

Chinhu	MaParamita Akananga
Fomura yeMolecular	C₈H₁₀
Kurema kweMorekuru	106.17
Nhamba yeCAS	1330-20-7 (musanganiswa); o-Xylene: 95-47-6; m-Xylene: 108-38-3; p-Xylene: 106-42-3
Chitarisiko uye Hunhu	Mvura inoonekera isina ruvara ine hwema hunoshamisa; mhando yeindasitiri musanganiswa we o/m/p-isomers
Nzvimbo Yokunyunguduka	-47.9℃ (o-Xylene) / -47.4℃ (m-Xylene) / 13.3℃ (p-Xylene)
Nzvimbo Yokubikira	144.4℃ (o-Xylene) / 139.1℃ (m-Xylene) / 138.4℃ (p-Xylene)
Kuwanda kwemvura (mvura = 1)	0.880 (o-Xylene, 20℃) / 0.864 (m-Xylene, 20℃) / 0.861 (p-Xylene, 20℃)
Kuwanda kwemhepo ine utsi (mhepo = 1)	3.7 (musanganiswa)
Kumanikidzwa kwemhepo kwakazara	1.3 kPa (25℃, m-Xylene); 0.8 kPa (25℃, p-Xylene)
Poindi yeFlash	25℃ (kapu yakavharwa, musanganiswa)
Muganho weKuputika	1.0% ~ 7.0% (chikamu chevhoriyamu, mhepo)
Kunyunguduka	Hainyungudike mumvura; inogona kusanganiswa ne ethanol, ether, acetone, benzene, nezvimwewo.
Kusviba	0.6 mPa·s (20℃, musanganiswa)
Index yeRefractive	1.495 (o-Xylene, 20℃) / 1.497 (m-Xylene, 20℃) / 1.496 (p-Xylene, 20℃)
Kupisa Kwemoto	464℃ (musanganiswa)
Kukosha kwepH (1% mhinduro)	Kwakasiyana (6.5~7.5)

Xylene (CAS 1330-20-7) chinhu chakakosha chinonyungudutsa petrochemical uye makemikari, chine ma isomers matatu (o-, m-, uye p-xylene) anoumba mvura yakagadzikana, isina ruvara ine hwema hwakasiyana. Inozivikanwa nesimba rayo rakanaka rekunyungudutsa uye kuenderana kwezvinhu, inoshanda sechinhu chinoshanduka-shanduka chinosangana nezvinodiwa zvekugadzirwa kwemaindasitiri uye kugadzira.

Inoshandiswa zvakanyanya pasi rose, inoshanda zvakanyanya semushonga wepamusoro wekuputira, inki dzekudhinda, uye kuchenesa zvikamu zvemagetsi; inoshandawo senzvimbo huru yekugadzira p-phthalic acid (chinhu chikuru chepurasitiki yePET) uye makemikari akanaka. Izvi zvinotsigirawo maindasitiri anosanganisira kurongedza, kugadzira machira emotokari, kugadzira zvishandiso zvemagetsi, kugadzirisa machira, uye kushongedza zvivakwa.

Chigadzirwa chedu chexylene chinopa sarudzo dzakasiyana-siyana dzegiredhi (giredhi remaindasitiri negiredhi repamusoro-soro) kuti zvienderane nezvinodiwa zvakasiyana-siyana zvekugadzira, zvine kudzora kwakasimba kwemhando kuti zvive nechokwadi chekuti hapana kusvibiswa kwakawanda uye kugara zvakanaka/kugadzikana. Isu tinovimbisa kuwanikwa kwakavimbika kwezvinhu zvakawanda, magwaro akazara ezvinhu zvine njodzi (kusanganisira MSDS neUN certification), uye mhinduro dzekutakura zvinhu dzinobvira moto. Pamusoro pezvo, timu yedu yehunyanzvi inopa rutsigiro rwakasiyana-siyana—senge nhungamiro yemamiriro ekuchengetedza uye mazano ekushanda kwe solvent—kuti tiwedzere kushanda zvakanaka kwekugadzira kwako uye kuchengetedzeka kwekushanda kwako.

Tsanangudzo yeXylene

Chinhu	Tsanangudzo
Chitarisiko	Mvura yakajeka, isina tsvina yakasungirirwa
Chromaticity/Hazen(Pt-Co) ≤	20
Kuwanda (20℃)/(kg/m2)	860~870
Pokufashaira Kwekutanga / ℃ ≥	137
Nzvimbo yakaoma / ℃ ≤	143
Huwandu Hwekunyungudika Hwese / ℃ ≤	5
Ruvara rwekushambidza neasidhi, g/L	Ruvara rusina kusviba kupfuura mvura yakajairwa (0.5gK₂Cr₂O₇ mu 1000mL dilute acid)
Hunhu hwese hwesarufa / (mg/kg) ≤	1
Zvakasara zveKubuda Kwemvura / (mg/100mL) ≤	5
Ngura yeCopper Strip	Pasi
Kuedzwa kweKusatsigira Kwazvo	Kwakarerekera
Zvakasara zvekubuda kwemvura/(mg/100mL) ≤	3
Kuedzwa kwekusava nekwakarerekera	kwakarerekera

Kurongedza kweXylene

Mudhiramu repurasitiki rinorema 180kg kana dhiramu reIBC.

Kuchengetera: Chengeta mudura rinotonhorera, rakaoma, rine mhepo inofefetera; Chengeta zvakaparadzana nezvinhu zvinokonzera oxidizing (semuenzaniso, nitric acid, peroxides), strong acids, uye halogens. Usambosanganisa kana kuchengeta pamwe chete.