Teb ceev
Puas yog O-Xylene soluble hauv dej? O-Xylene yog insoluble hauv dej. Ntawm 25℃, O-Xylene solubility nyob rau hauv dej yog kwv yees li 160–180 mg/L - txhais tau tias tsuas yog ib feem me me dissolves, hos cov seem ua ib txheej kua cais uas ntab saum cov dej vim nws qis qis.
O-Xylene yog dab tsi?
O-Xylene (ortho-xylene)yog ib qho ntawm peb hom isomeric ntawm xylene, txawv los ntawm txoj hauj lwm ntawm nws ob pawg methyl ntawm cov pa roj carbon uas nyob ib sab ntawm lub nplhaib benzene. Nws yog cov kua ntshiab, tsis muaj xim nrog cov yam ntxwv qab zib, tsw ntxhiab tsw, feem ntau yog siv los ua cov khoom siv raw rau phthalic anhydride ntau lawm thiab ua cov kuab tshuaj.
Khoom Table
| Khoom | Tus nqi |
|---|---|
| CAS Nr | 95-47-6 |
| Molecular Formula | C₈H₁₀ |
| Molecular Luj | 106.17 g / mol |
| Qhov tshwm sim | Ntshiab, xim tsis muaj kua |
| tsw | Qab zib, aromatic |
| Cov Npe | Ortho-Xylene, 1,2-Dimethylbenzene, O-Xylol |
| Ceev (20 degree) | 0.880 g/cm³ |
| Boiling Point | ~ 144 degree |
| O-Xylene Solubility hauv dej (25 degree) | 160-180 mg/L |
Puas yog O-Xylene Soluble hauv dej?
O-Xylene Solubility hauv dej
Ntawm 25 degree,O-Xylene solubility hauv dejyog kwv yees li 160-180 mg / L. Qhov no txhais tau hais tias nyob rau hauv ib liter dej, tsuas yog ib feem ntawm ib gram ntawm O-Xylene yuav yaj tiag tiag ua ntej cov tshuaj yuav saturated - ib qho ntxiv O-Xylene ntxiv dhau qhov no yuav nyob twj ywm undissolved raws li ib tug cais cov kua theem. Tshaj tawm qhov tseem ceeb rauO-Xylene solubilityfeem ntau poob rau hauv qhov ntau ntawm qhov sib txawv ntawm cov ntaub ntawv siv, nrog rau qhov sib txawv me me nyob ntawm txoj kev ntsuas thiab ntsuas kub.
Kev faib tawm
Txawm hais tias qhov me me ntawm solubility, O-Xylene raug cais raws lixyaum insolublehauv dej. Nyob rau hauv chemistry, ib tug compound feem ntau tau piav raws li qhov no thaum nws solubility poob qis dua 1,000 mg/L (1 g/L) - O-Xylene's solubility zoo nyob rau hauv qhov pib, muab nws ruaj khov nyob rau hauv "insoluble" qeb siv nyob rau hauv ob qho tib si kev kawm ntawv thiab cov ntaub ntawv muaj kev nyab xeeb txawm tias me me.
Nws puas sib xyaw nrog dej?
Tsis yog. Thaum O-Xylene thiab dej sib xyaw ua ke, lawv tsis sib tov rau hauv ib qho kev daws teeb meem. Hloov chaw, lawv tsim ob txheej ua kua sib txawv, nrog O-Xylene seem cais los ntawm cov dej theem tshwj tsis yog rau cov feem me me uas tau sau tseg saum toj no.
Vim li cas O-Xylene Insoluble hauv dej?
Like Dissolves Like
Tus cwj pwm ntawm O-Xylene hauv dej los rau hauv lub hauv paus ntsiab lus chemistry: "zoo li yaj zoo li." Cov khoom uas muaj polarity zoo sib xws yuav sib tov zoo, thaum cov khoom uas muaj polarity sib txawv heev yuav sib cais.
- Polarity:Dej yog ib tug polar molecule heev - nws khoov duab thiab electronegativity sib txawv ntawm oxygen thiab hydrogen tsim ib tug muaj zog molecular dipole. O-Xylene, los ntawm qhov sib txawv, yog ib qho tsis muaj polar aromatic hydrocarbon. Nws lub nplhaib benzene thiab ob methyl substituents yog tsim los ntawm yuav luag tag nrho ntawm carbon-carbon thiab carbon-hydrogen bonds, uas muaj tsawg heev electronegativity sib txawv thiab tsim qhov tseem ceeb tsis muaj net molecular dipole.
- Hydrogen Bonding:Cov dej molecules tsim ib lub network dav dav ntawm hydrogen bonds nrog ib leeg. O-Xylene tsis muaj O-H, N-H, lossis zoo sib xws cov ntawv cog lus, yog li nws tsis tuaj yeem koom nrog hydrogen bonding nrog dej molecules. Qhia O-Xylene rau hauv dej yuav xav tau kev rhuav tshem ib feem ntawm cov hydrogen no- kev sib cog lus network yam tsis muaj kev cuam tshuam zoo sib xws hauv kev xa rov qab - cov txheej txheem tsis zoo.
- Van der Waals Forces:O-Xylene molecules cuam tshuam nrog ib leeg feem ntau los ntawm cov tsis muaj zog van der Waals (dispersion) rog, uas tsis muaj zog dua li cov hydrogen bonds tuav cov dej molecules ua ke. Qhov kev tsis sib haum xeeb hauv kev sib cuam tshuam yog qhov tseem ceeb vim li cas ob lub kua tiv thaiv kev sib xyaw, thiab nws yog qhov laj thawj tseem ceeb.O-Xylene solubilitynyob rau hauv dej nyob qis qis.
- Vim tias O-Xylene tsis tuaj yeem hloov cov ntawv cog lus hydrogen nws yuav hloov pauv hauv dej nrog kev sib cuam tshuam zoo sib xws, ob lub kua tseem nyob sib cais, tsuas yog me me ntawm O-Xylene tuaj yeem yaj ntawm qib molecular.
Vim tias O-Xylene tsis tuaj yeem hloov cov ntawv cog lus hydrogen nws yuav hloov pauv hauv dej nrog kev sib cuam tshuam zoo sib xws, ob lub kua tseem nyob sib cais, tsuas yog me me ntawm O-Xylene tuaj yeem yaj ntawm qib molecular.
Yuav ua li cas thaum O-Xylene sib xyaw nrog dej?
Yog tias O-Xylene thiab dej sib xyaw ua ke thiab shaken ua ke, cov hauv qab no tshwm sim:
- Co:Kev sib xyaw ua ke ib ntus ua rau ob qho tib si ua kua rau hauv cov tee me me, tsim kom muaj huab, ib ntus dispersion.
- Temporary Dispersion:Tam sim ntawd tom qab co, cov tee me me ntawm O-Xylene raug tshem tawm thoob plaws hauv dej, muab qhov sib tov ua kom pom tseeb lossis muaj kua mis.
- Sib cais ua ob txheej:Nyob rau hauv ib lub sij hawm luv luv ntawm kev daws, cov tee dej coalesce thiab cov sib tov sib cais rov qab rau hauv ob txheej txheej.
- Upper Txheej:O-Xylene tsim cov txheej txheem sab saud. Qhov no yog vim nws qhov ntom ntom (~ 0.880 g / cm³) qis dua cov dej (~ 1.000 g / cm³), yog li nws ntab.
- Txheej hauv qab:Dej, ua denser, settles raws li lub hauv qab txheej, nqa tsuas yog cov kab ntawm yaj O-Xylene (~160-180 mg / L) nyob rau hauv nws.
Qhov kev coj tus cwj pwm ntab no yog ib qho tseem ceeb rau kev xav txog hauv cov lus teb thiab kev kho dej khib nyiab, tau tham ntxiv hauv qab no.
Solubility Sib piv nrog rau lwm yam Solvents
| Solvent | Solubility (nrog rau O-Xylene mixing) |
|---|---|
| Dej | Tsawg heev (~ 160–180 mg/L) |
| Ethanol | Miscible |
| Acetone | Miscible |
| Diethyl Ether | Miscible |
| Benzene | Miscible |
| Mineral Roj | Soluble heev |
O-Xylene sib xyaw ua ke nrog cov kuab tshuaj uas tsis muaj polar thiab nruab nrab ntawm cov polar organic solvents, uas qhia txog tib yam "zoo li yaj zoo li" cov ntsiab lus tau tham saum toj no - cov kuab tshuaj no muaj cov yam ntxwv zoo sib xws los yog tsis muaj zog polar nrog O-Xylene, tsis zoo li dej. Qhov no yog vim li casO-Xylene solubility hauv dejzaum ntawm qhov qis kawg ntawm qhov ntsuas piv rau nws cov solubility hauv cov kuab tshuaj organic.
Vim li cas Dej Solubility tseem ceeb hauv kev lag luam
O-Xylene cov dej solubility qis muaj qhov cuam tshuam ncaj qha, siv tau los ntawm ntau qhov kev lag luam:
Paints & Coatings- Formulators cia siab rau O-Xylene immiscibility nrog dej los tswj kev ua kom qhuav, tsim cov yeeb yaj kiab, thiab kev sib raug zoo hauv cov kuab tshuaj-raws li (raws li tsis yog dej-raws li) txheej txheej txheej.
Adhesives- Hauv cov kuab tshuaj-raws li cov tshuaj nplaum, O-Xylene's nonpolar cim pab yaj resins thiab polymers uas lawv tus kheej insoluble hauv dej.
Chemical Manufacturing- Raws li cov khoom noj rau phthalic anhydride ntau lawm, O-Xylene kev sib cais los ntawm cov txheej txheem aqueous yog ncaj nraim vim nws cov solubility tsawg thiab ntom sib txawv, ua kom yooj yim rau hauv qab dej huv.
Roj av- O-Xylene tshwm sim nyob rau hauv cov roj av- muab cov kwj deg uas muaj ntxhiab; nws cov dej-insoluble qhov xwm txheej yog tsim rau hauv refinery sib cais thiab kev sib xyaw ua ke.
Kev tiv thaiv ib puag ncig- Vim O-Xylene tsis yooj yim yaj nyob rau hauv dej, spills yuav tsim ib tug nyias floating txheej es dispersing mus rau hauv ib tug dej lub cev - ib tug qhov tseeb uas ncaj qha daim ntawv spill teb cov txheej txheem (saib hauv qab).
Kev siv chav kuaj- Cov chaw soj ntsuam thiab tshawb fawb suav rau O-Xylene cov dej tsis tshua muaj dej solubility thaum tsim cov txheej txheem rho tawm, theem- cov kauj ruam sib cais, thiab cov qauv npaj cov txheej txheem.
Environmental Impact
Thaum O-Xylene nkag mus rau hauv ib puag ncig - piv txwv li, los ntawm kev nchuav los yog xau - nws cov dej solubility tsawg thiab lub cev tshwj xeeb txiav txim siab seb nws coj li cas:
- Dej muaj kuab paug:Txawm hais tias tsuas yog ib feem me me yaj, qhov uas yaj ntawd tseem tuaj yeem ua rau muaj kev pheej hmoo rau cov kab mob hauv dej thiab yuav tsum tau saib xyuas thiab kho.
- Floating Txheej:Vim tias O-Xylene tsawg dua li cov dej, cov khoom uas nchuav mus rau hauv cov txheej txheem uas pom nyob rau saum npoo dej es tsis sib tov thoob plaws hauv dej.
- Evaporation:O-Xylene yog volatile, thiab ib feem ntawm qhov ntog yuav evaporate rau saum huab cua thaum lub sij hawm, uas yog ib tug tseem ceeb txoj kev rau ib puag ncig poob nrog rau kev puas tsuaj.
- Av Adsorption:Hauv cov av lossis dej hauv av, O-Xylene nyiam adsorb rau cov organic teeb meem hauv av es tsis yog tsiv mus nyob dawb nrog dej, txawm tias nws tseem tuaj yeem txav mus los hauv av thiab ncav cuag dej hauv av hauv qee qhov xwm txheej.
- Spill Response:Cov txheej txheem ntab -txheej txheem txheej tau piav qhia saum toj no ncaj qha rau kev ntim khoom - ntab booms thiab skimming khoom, feem ntau siv rau cov roj nchuav, zoo ib yam rau O-Xylene spills ntawm dej.
Cov kev coj ua zoo tshaj plaws
- Ntim cov khoom nchuav tam sim ntawd siv cov khoom nqus los yog cov boom ntab kom tsis txhob kis tau.
- Tsis txhob ntxuav cov dej ntws mus rau hauv qhov dej, kwj dej, lossis txoj hauv dej - qhov no tsis "tua" qhov teeb meem thiab tuaj yeem kis tau kab mob.
- Saib xyuas cov dej nyob ze yog tias muaj kev nchuav tshwm sim ze ntawm cov dej hauv av los yog cov dej saum npoo av.
- Ua raws li cov cai hauv cheeb tsam ib puag ncig rau kev tshaj tawm thiab kho cov tshuaj tsw qab hydrocarbon.
Cia thiab tuav tswv yim
Txhawm rau tiv thaiv dej paug thiab tswj cov khoom zoo, cov neeg siv khoom lag luam yuav tsum:
- Khaws O-Xylene nyob rau hauv kaw, corrosion-cov thawv tiv thaiv kom deb ntawm cov dej nag ncaj qha.
- Tsis txhob tso tseg qhov chaw uas cov dej ntws tuaj yeem ncav cuag cov dej hauv av los yog cov dej saum npoo av.
- Xyuas kom cov chaw khaws cia muaj qhov chaw nruab nrab (bunding) kom ntes cov xau ua ntej lawv ncav cuag cov av lossis cov dej ntws.
- Tsis txhob pov tseg O-Xylene, lossis yaug cov thawv, rau hauv qhov dej - qhov no tuaj yeem ua rau muaj dej paug thiab ua txhaum cai.
- Khaws cov chaw cia kom deb ntawm cov dej hauv pem teb txuas nrog cov kav dej hauv nroog.
Cov lus nug nquag
Puas yog O-Xylene soluble hauv dej?
Tsis yog, tsis yog nyob rau hauv qhov kev xav.O-Xyleneyog xyaum insoluble nyob rau hauv dej, tsuas yog hais txog 160-180 mg / L dissolving ntawm 25 degree. Nws raug cais raws li "yooj yim insoluble" es tsis yog insoluble kiag li.
O-Xylene solubility hauv dej yog dab tsi?
O-Xylene solubility hauv dejyog kwv yees li 160–180 mg / L ntawm 25 degree, zoo hauv qab qhov pib feem ntau siv los faib cov khoom sib xyaw ua dej -soluble.
Vim li cas qee qhov O-Xylene tuaj yeem yaj hauv dej?
Ib qho me me ntawm O-Xylene tuaj yeem yaj vim tias ib feem ntawm nws cov molecules tuaj yeem haum rau hauv qhov sib txawv ib ntus hauv dej hydrogen- kev sib raug zoo network yam tsis muaj kev cuam tshuam nws tag nrho, tso cai rau cov molecular txwv - theem sib tov txawm tias ob lub kua dej tsis sib haum.
Puas yog O-Xylene ntab saum dej?
Yog lawm. O-Xylene muaj qhov ntom ntawm kwv yees li 0.880 g / cm³, qis dua dej qhov ceev ntawm kwv yees li 1.000 g / cm³, yog li nws tsim cov txheej ntab saum dej.
O-Xylene puas tuaj yeem paug dej hauv av?
Yog lawm, yog tias muaj dej ntws los yog ntws mus txog cov av saum cov dej hauv av, O-Xylene tuaj yeem txav mus rau hauv qab thiab ua paug rau hauv av thaum lub sijhawm, txawm tias nws cov dej solubility tsawg. Qhov no yog vim li cas kev tswj kom raug thiab cov lus teb nchuav yog qhov tseem ceeb.
Puas yog O-Xylene soluble hauv cawv?
Yog lawm. O-Xylene yog miscible nrog cawv xws li ethanol, vim lawv muaj peev xwm sib koom ua kom yaj tsis muaj polar thiab nruab nrab polar organic compounds.
Puas yog O-Xylene soluble hauv acetone?
Yog lawm. O-Xylene yog miscible nrog acetone, uas yog feem ntau siv nrog los yog nyob rau hauv qhov chaw ntawm dej -immiscible kuab tshuaj nyob rau hauv industrial formulations.
Cov dej puas tuaj yeem tshem O-Xylene?
Dej ib leeg tsis yog ib txoj hauv kev zoo los tshem O-Xylene los ntawm cov chaw lossis cov khoom siv, vim tias ob qho tsis sib xyaw. Cov kuab tshuaj-raws li cov tshuaj ntxuav uas muaj miscible nrog O-Xylene feem ntau yuav tsum tau ua kom huv si zoo.
Cov kuab tshuaj twg ua rau O-Xylene zoo tshaj?
O-Xylene yog miscible nrog feem ntau nonpolar thiab tsis muaj zog polar organic solvents, suav nrog benzene, acetone, diethyl ether, thiab ethanol - ib qho ntawm cov no yuav yaj O-Xylene deb tshaj li dej.
Xaus
Puas yog O-Xylene soluble hauv dej? Hauv cov ntsiab lus siv tau, tsis muaj - O-Xylene solubility hauv dej yog txwv rau kwv yees li 160-180 mg / L ntawm 25 degree, nrog rau qhov seem tsim cov txheej txheem dej sib cais. Qhov kev coj cwj pwm no tau piav qhia los ntawm O-Xylene's nonpolar aromatic hydrocarbon qauv, uas tsis tuaj yeem tsim hydrogen bonds nrog dej thiab tso siab rau qhov tsis muaj zog van der Waals los cuam tshuam nrog lwm cov molecules. Cov cuab yeej no muaj feem cuam tshuam thoob plaws cov xim, txheej, nplaum, tshuaj lom neeg kev lag luam, thiab kev lag luam roj av, thiab nws muaj kev cuam tshuam tseem ceeb rau kev tiv thaiv ib puag ncig - spills nyiam ntab thiab sib kis ntau dua li yaj, xav tau tshwj xeeb ntim thiab txeej - teb cov kev coj ua. Kev nkag siab O-Xylene solubility yog qhov tseem ceeb rau txhua tus khaws cia, tuav, thauj, lossis tsim cov kuab tshuaj no.
