I-High-Purity Meta-Xylene Chemical Feedstock

inkcazo emfutshane:

I-Xylene (ebizwa ngokuba yi-dimethylbenzene) yi-hydrocarbon enuka kamnandi ebalulekileyo kwi-chemistry yemizi-mveliso. Iquka ii-isomers ezintathu (o-, m-, kunye ne-p-xylene), i-Xylene yorhwebo idla ngokuba ngumxube ozinzileyo, obonakala njengolwelo olungenambala, olucacileyo olunevumba elimnandi elicacileyo.

Le Xylene isebenza kakuhle kuqala njengesinyibilikisi esisebenza kakuhle: inyibilikisa iiresini, iirabha, kunye needayi zokugquma, ii-inki zokuprinta, kunye nokucoca nge-elektroniki. Ngaphaya kwe-solvency, iXylene isebenza njengesitokhwe esibalulekileyo—esicutshungulwa sibe yi-p-xylene (isiqalo seplastiki ze-PET) kunye neekhemikhali ezintle zelaphu kunye nokupakishwa.

Okuphawulekayo kukuba, iXylene iyatsha, ifuna umoya ofanelekileyo xa iphathwa. Nangona kunjalo, iXylene iseyeyona nto iphambili exhasa uthotho lwanamhlanje lweekhemikhali kunye nolwemveliso.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Inkcazo

Into	Iiparameters ezithile
Ifomula yeMolekyuli	C₈H₁₀
Ubunzima beMolekyuli	106.17
Inombolo ye-CAS	1330-20-7 (umxube); o-Xylene: 95-47-6; m-Xylene: 108-38-3; p-Xylene: 106-42-3
Inkangeleko kunye noBuchule	Ulwelo olungenambala nolucacileyo olunevumba elimnandi; uhlobo lwe-industrial grade lumxube we-o/m/p-isomers
Indawo yokunyibilika	-47.9℃ (o-Xylene) / -47.4℃ (m-Xylene) / 13.3℃ (p-Xylene)
Indawo yokubilisa	144.4℃ (o-Xylene) / 139.1℃ (m-Xylene) / 138.4℃ (p-Xylene)
Ubuninzi obuhambelanayo (amanzi = 1)	0.880 (o-Xylene, 20℃) / 0.864 (m-Xylene, 20℃) / 0.861 (p-Xylene, 20℃)
Ubuninzi boMphunga (umoya = 1)	3.7 (umxube)
Uxinzelelo lweVapor oluGcweleyo	1.3 kPa (25℃, m-Xylene); 0.8 kPa (25℃, p-Xylene)
Indawo yokuflasha	25℃ (indebe evaliweyo, umxube)
Umda Wokuqhuma	1.0% ~ 7.0% (inxalenye yevolumu, umoya)
Ukunyibilika	Ayinyibiliki emanzini; ingaxutywa ne-ethanol, i-ether, i-acetone, i-benzene, njl.
Ukuqaqamba	0.6 mPa·s (20℃, umxube)
Isalathiso sokuKhangela	1.495 (o-Xylene, 20℃) / 1.497 (m-Xylene, 20℃) / 1.496 (p-Xylene, 20℃)
Ubushushu bokutsha ngokuzenzekelayo	464℃ (umxube)
Ixabiso le-pH (isisombululo se-1%)	Ingathathi cala (6.5~7.5)

I-Xylene (CAS 1330-20-7) sisinyibilikisi esibalulekileyo se-petrochemical kunye ne-feedstock yeekhemikhali, equlathe ii-isomers ezintathu (o-, m-, kunye ne-p-xylene) ezenza ulwelo oluzinzileyo, olungenambala olunevumba elimnandi. Idume ngamandla ayo abalaseleyo okunyibilikisa kunye nokuhambelana kwezinto, isebenza njengesixhobo esisisiseko esiguquguqukayo esihlangabezana neemfuno ezingqongqo zokwenziwa kunye nokuhlanganiswa kwemizi-mveliso.

Isetyenziswa kakhulu kwihlabathi liphela, isebenza kakhulu njengesinyibilikisi esisebenza kakuhle kwiingubo, ii-inki zokuprinta, kunye nokucoca izinto ze-elektroniki; ikwasebenza njengesixhobo esiphambili sokwenza i-p-phthalic acid (isiseko esiphambili seeplastiki zePET) kunye neekhemikhali ezintle. Ezi zinto ziphuma kuzo zixhasa ngakumbi amashishini aquka ukupakisha, ukuvelisa iingubo zeemoto, ukuvelisa izixhobo ze-elektroniki, ukucubungula amalaphu, kunye nokuhombisa izakhiwo.

Imveliso yethu ye-xylene inikezela ngeendlela ezahlukeneyo zodidi (udidi lweshishini kunye nodidi oluphezulu lococeko) ukuze ihambelane neemfuno ezahlukeneyo zemveliso, enolawulo oluqinileyo lomgangatho ukuqinisekisa ukuba umxholo wokungcola okuphantsi kunye nokuqina/ukuzinza okuhlala kuhleli. Siqinisekisa ukunikezelwa okuthembekileyo kwenqwaba, amaxwebhu apheleleyo eempahla ezinobungozi (kubandakanya i-MSDS kunye nesatifikethi se-UN), kunye nezisombululo zezothutho ezilungiselelwe ukuthuthwa kolwelo olunokutsha. Ukongeza, iqela lethu lobuchwephesha libonelela ngenkxaso eyenzelwe wena—njengesikhokelo semeko yokugcina kunye neengcebiso zokuhambelana nesinyibilikisi—ukuphucula ukusebenza kakuhle kwemveliso yakho kunye nokhuseleko lokusebenza.

Iinkcukacha zeXylene

Into	Inkcazo
Inkangeleko	Ulwelo olucacileyo, olungenazo izinto ezingcolisayo ezixhonyiweyo
I-Chromaticity/Hazen(Pt-Co) ≤	20
Uxinano (20℃)/(kg/m)	860~870
Indawo yokuBilisa yokuqala / ℃ ≥	137
Indawo eyomileyo / ℃ ≤	143
Uluhlu olupheleleyo lwe-Distillation / ℃ ≤	5
Umbala wokuhlamba nge-asidi, g/L	Umbala awumnyama kunesisombululo esiqhelekileyo (0.5gK₂Cr₂O₇ kwi-1000mL dilute acid)
Umxholo wesalfure uwonke / (mg/kg) ≤	1
Intsalela yoMphunga / (mg/100mL) ≤	5
Ukugqwala kweCopper Strip	Ipasi
Uvavanyo lokungathathi cala	Ukungathathi cala
Intsalela yomphunga/(mg/100mL) ≤	3
Uvavanyo lokungathathi cala	engathathi cala

Ukupakishwa kweXylene

Kwidrama yeplastiki ecocekileyo eyi-180kg okanye idrama ye-IBC.

Indawo yokugcina: Gcina kwindawo yokugcina izinto epholileyo, eyomileyo, nengena umoya; Gcina yahlulwe ngokupheleleyo kwii-oxidizing agents (umz., i-nitric acid, iiperoxides), ii-asidi ezinamandla, kunye neehalogens. Ungaze udibanise okanye ugcine kunye.