Quudinta Kiimikada Meta-Xylene oo Nadiif ah

Sawirka Soo-bandhigidda ee Kiimikada Meta-Xylene oo Nadiif ah

Sharaxaad kooban:

Xylene (oo badanaa loo yaqaan dimethylbenzene) waa hydrocarbon udgoon oo muhiim u ah kiimikada warshadaha. Iyada oo ka kooban saddex isomers (o-, m-, iyo p-xylene), Xylene ganacsigu badanaa waa isku dar deggan, oo u muuqda dareere aan midab lahayn oo hufan oo leh ur udgoon oo kala duwan.

Xylene-kan kala duwan wuxuu marka hore u shaqeeyaa sidii dareere waxqabad sare leh: wuxuu milaa resins-ka, cinjirka, iyo rinjiyada dahaarka, khad daabacan, iyo nadiifinta elektaroonigga ah. Marka laga reebo xalalka, Xylene wuxuu u adeegaa sidii quudin muhiim ah - oo loo farsameeyo p-xylene (hormood u ah balaastikada PET) iyo kiimikooyin fiican oo loogu talagalay dharka iyo baakadaha.

Waxaa xusid mudan in Xylene uu dab qabsan karo, taasoo u baahan hawo-qaadid habboon inta lagu jiro maaraynta. Iyadoo ay jiraan taxaddarrada noocaas ah, Xylene waxay weli tahay agab aasaasi ah oo saldhig u ah silsiladaha sahayda kiimikada iyo wax-soo-saarka casriga ah.

Noo soo dir emayl

Faahfaahinta Badeecada

Calaamadaha Alaabta

Sharaxaad

Shay	Halbeegyo Gaar ah
Qaacidda Molekuleerigga	C₈H₁₀
Miisaanka Molekulerka	106.17
Lambarka CAS.	1330-20-7 (isku darka); o-Xylene: 95-47-6; m-Xylene: 108-38-3; p-Xylene: 106-42-3
Muuqaalka iyo Dabeecadda	Dareere aan midab lahayn oo hufan oo leh ur udgoon oo astaan u leh; heerka warshadaha waa isku darka o/m/p-isomers
Barta Dhalmada	-47.9℃ (o-Xylene) / -47.4℃ (m-Xylene) / 13.3℃ (p-Xylene)
Barta Karkarinta	144.4℃ (o-Xylene) / 139.1℃ (m-Xylene) / 138.4℃ (p-Xylene)
Cufnaanta Qaraabada (biyo = 1)	0.880 (o-Xylene, 20℃) / 0.864 (m-Xylene, 20℃) / 0.861 (p-Xylene, 20℃)
Cufnaanta Uumiga Qaraabo ah (hawada = 1)	3.7 (isku darka)
Cadaadiska Uumiga Buuxa	1.3 kPa (25℃, m-Xylene); 0.8 kPa (25℃, p-Xylene)
Barta Iftiiminta	25℃ (koob xiran, isku dar ah)
Xadka Qaraxyada	1.0% ~ 7.0% (jajab mugga, hawada)
Milmida	Biyaha kuma milmi karo; lagu qasi karo ethanol, ether, acetone, benzene, iwm.
Viscosity	0.6 mPa·s (20℃, isku darka)
Tusmada Refractive	1.495 (o-Xylene, 20℃) / 1.497 (m-Xylene, 20℃) / 1.496 (p-Xylene, 20℃)
Heerkulka Shidista Iswada	464℃ (isku darka)
Qiimaha pH (1% xal)	Dhexdhexaad (6.5~7.5)

Xylene (CAS 1330-20-7) waa dareere batrool kiimiko ah oo muhiim ah iyo quudin kiimiko ah, oo ka kooban saddex isomers (o-, m-, iyo p-xylene) oo sameeya dareere deggan oo aan midab lahayn oo leh ur udgoon oo kala duwan. Iyada oo loo dabaaldegayo awooddeeda wanaagsan ee furfurnaanta iyo iswaafajinta walxaha, waxay u dhaqantaa sidii walxo aasaasi ah oo kala duwan oo buuxiya shuruudaha adag ee qaabaynta warshadaha iyo isku-darka.

Si ballaaran ayaa looga isticmaalaa qaybaha adduunka oo dhan, waxay ugu horreyn u adeegtaa sidii dareere waxqabad sare leh oo loogu talagalay dahaarka, khad daabacan, iyo nadiifinta qaybaha elektaroonigga ah; waxay sidoo kale u dhaqantaa sidii quudin muhiim ah oo loogu talagalay isku-darka aashitada p-phthalic (horumar muhiim ah oo loogu talagalay balaastikada PET) iyo kiimikooyinka wanaagsan. Waxyaabahan soo-saarku waxay sii taageeraan warshadaha oo ay ku jiraan baakadaha, soo saarista dahaarka baabuurta, soo saarista qalabka elektaroonigga ah, farsamaynta dharka, iyo qurxinta dhismaha.

Badeecaddeenna xylene waxay bixisaa ikhtiyaarro darajooyin badan leh (heer warshadeed iyo heer saafi ah oo sarreeya) si ay ula jaanqaadaan baahiyaha wax soo saarka ee kala duwan, iyadoo leh xakameyn tayo adag si loo hubiyo in wasakhdu yar tahay iyo xasillooni/xasilloonid joogto ah. Waxaan dammaanad qaadeynaa sahay badan oo la isku halleyn karo, dukumentiyo dhammaystiran oo alaabada khatarta ah (oo ay ku jiraan shahaadada MSDS iyo UN), iyo xalal saadka oo loogu talagalay gaadiidka dareeraha guban kara. Intaa waxaa dheer, kooxdayada farsamada xirfadlayaasha ah waxay bixisaa taageero shaqsiyeed - sida hagidda xaaladda kaydinta iyo talooyinka iswaafajinta dareeraha - si loo wanaajiyo hufnaanta wax soo saarkaaga iyo badbaadada hawlgalka.

Qeexitaanka Xylene

Shay	Faahfaahinta
Muuqaalka	Dareere hufan, oo ka xor ah wasakhda la hakiyey
Isbeddelka/Hazen(Pt-Co) ≤	20
Cufnaanta (20℃)/(kg/m)	860~870
Barta Karkarinta Bilowga ah / ℃ ≥	137
Barta Qallalan / ℃ ≤	143
Wadarta Kala-soocidda Kala-soocidda / ℃ ≤	5
Midabka Aashitada, g/L	Midabku ma ka madow yahay xalka caadiga ah (0.5gK₂Cr₂O₇ ee 1000mL aashitada khafiifka ah)
Wadarta guud ee ka kooban sulfur / (mg/kg) ≤	1
Hadhaaga Uumiga / (mg/100mL) ≤	5
Daxalka Xarriiqda Naxaasta ah	Gudub
Imtixaanka Dhexdhexaadnimada	Dhexdhexaad
Hadhaaga uumi-baxa/(mg/100mL) ≤	3
Tijaabi dhexdhexaadnimada	dhexdhexaad ah

Baakaynta Xylene

Durbaan balaastig ah oo 180kg ah ama durbaan IBC ah oo saafi ah.

Kaydinta: Ku kaydi bakhaar qabow, qalalan, oo hawo leh; Si adag uga fogow walxaha oksaydhka sameeya (tusaale ahaan, nitric acid, peroxides), asiidhyo xooggan, iyo halogens. Weligaa ha isku qasin ama ha isku kaydin.