CAS 106{1}}42-3 P-Xylene yog ib qho uas muaj ntxhiab hydrocarbon, raws li benzene nrog ob methyl substituents. Lub "p" sawv cev rau para, txheeb xyuas qhov chaw ntawm cov methyl pawg raws li kev sib txawv ntawm ib leeg. Nws yog ib qho isomer ntawm xylene. Lwm cov isomers suav nrog o-xylene thiab m-xylene. Para-Xylene yog siv rau ntawm qhov loj me rau kev tsim cov terephthalic acid rau polyester. Nws cov polymer hu ua Parylene.
Cov khoom ntawm P-Xylene/Paraxylene
- Lub melting point yog 13.2 ° C thaum lub boiling point yog 138.5 ° C.
- Cov mis mos molecular yog C6 H4 (CH3) 2 o thiab nws yog ib qho ntawm peb cov organic compounds ntawm xylene li m-xylene, m-xylene, thiab p-xylene.
- Nws yog insoluble hauv dej tab sis soluble hauv cawv, chloroform, ether, thiab ntau cov kuab tshuaj organic.
- Nws yog ib qho carcinogenic compound uas tuaj yeem suav hais tias yog cov organic thiab tshuaj lom.
- Nws yog xim tsis muaj xim, yooj yim flammable thiab tawg kua.
- Nws yuav tsum tsis txhob kov ntawm daim tawv nqaij thiab qhov muag, thiab yuav tsum tsis txhob nqos.
- Nws tshwm sim nyob rau hauv cov roj av thiab thee tar.
- Nws yog qhov xav tau tshaj plaws isomer ntawm xylenes.
P-Xylene - Muaj Qib Muaj Zog
| Kev siv tseem ceeb | Cov cheeb tsam tseem ceeb ntawm daim ntawv thov |
| Raw khoom rau PTA (Purified Terephthalic Acid) | - Kev tsim khoom ntawm PET (Polyethylene Terephthalate) |
| Cov khoom tseem ceeb ntawm PET (Polyester) | - Lub raj mis dej haus, ntim khoom noj, cov yeeb yaj kiab yas (pob tshab, ruaj khov, rov ua dua tshiab) |
| Kev tsim khoom ntawm polyester (PET fibers) | - Khaub ncaws, tsev textiles, industrial fabrics (wrinkle-resistant, check, ntau yam) |
| DMT (Dimethyl Terephthalate) | - Lwm hom monomer rau polyester ntau lawm |
| PIA (Isophthalic Acid) | - PET resin modifier (txhim kho qhov ntev thiab kev ua haujlwm) |
| High -kev ua haujlwm tshwj xeeb polymers | - Engineering yas xws li PBT (Polybutylene Terephthalate) |
| Cov kuab tshuaj thiab tshuaj | - Paints, coatings, adhesives, inks |
| Agricultural tshuaj | - Kev tsim cov tshuaj tua kab thiab chiv |
| Cov khoom siv tseem ceeb hauv cov khoom siv science | - Los ntawm cov raj mis yas niaj hnub mus rau cov khoom siv hluav taws xob zoo tshaj plaws, ua lub neej niaj hnub |
Koj puas txaus siab rau cov khoom no? Thov xa cov lus nug, thiab peb yuav tiv tauj koj hauv 24 teev ua haujlwm tom ntej los tham txog koj cov kev xav tau.
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Cov neeg siv khoom tuaj ua ntej. Peb muab siab - cov khoom zoo ntawm tus nqi tsim nyog thiab xyuas kom meej cov khoom xa tuaj sai.
Peb tuaj yeem xa cov khoom ncaj qha mus rau koj qhov chaw nyob xa khoom, uas muaj kev nyab xeeb thiab ceev ceev. Peb muaj cov khoom npaj rau hauv Tshuag.
Peb teb sai thiab meej rau cov neeg siv khoom cov lus nug. Peb muab kev sov siab tom qab - kev muag khoom thiab yuav pab koj daws txhua yam teeb meem uas koj ntsib.
Peb xa tshwj xeeb zoo thiab kev pabcuam ntawm tus nqi sib tw.
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