Cov khoom lag luam
Muaj Dab Tsi Qib Phthal anhydride rau cov yasizer ntau dua w lov 85-44-9?
Phthal anhydride (cas {{85-44-9), sau cov molecular crystalline colomat compound nrog cov molecular cov mis coloma c₈h₄o₃ thiab mev luam me me 148.12 g / mol.
Nyob rau hauv chav tsev kub, phthalic anhydride tshwm li dawb koob txhaj tshuaj-zoo li lossis flaky muaju nrog cov yam ntxwv muaj nuj nqis. Nws muaj lub ntsiab lus melting ntawm 131.2 degree, boiling taw tes ntawm 295 degree, thiab ntom ntawm 1.527 g / cm³ ntawm 4 degree. Cov compound yog sparingly soluble hauv dej txias tab sis yaj tau yooj yim hauv cov ethanic cov kuab tshuaj xws li ethanol, benzene, thiab pyridine.
Cov ntaub ntawv yooj yim
Muaj qib phthalic anhydride rau cov yasizer ntau lawm w? 85-44-9
| Khoom npe | Phthal anhydride |
| Molecular Cov Qauv | C8H4O3 |
| Cas Tsis tau. | 85-44-9 |
| Purit | Ntau dua los yog sib npaug rau 99.5% |
| Flash point |
152 Qib |
| Kub taw tes |
285 degree |
| Qhuav xim |
Tsawg dua los yog sib npaug rau 20 |
| Khov taw tes | Ntau dua los yog sib npaug rau 130.8 degree |
| Yam ntim | 25kg / hnab |
Kev siv
Hauv kev tsim yas, phthalic anhydride yog siv los tsim cov philalate esters zoo li dibtyl phthalate (dop), uas ua rau txhim kho qhov yooj ntawm cov khoom siv PVC. Kev lag luam tshuaj lom neeg nws ua haujlwm rau kev sib txuas ua haujlwm polyester tsis tau nyiaj thiab alkyded, dav siv rau hauv cov txheej txheej, cov nplaum, thiab cov khoom nplaum, thiab cov khoom siv fiberglass-ntxiv. Ib qho ntxiv, nws ua haujlwm ua qhov tseem ceeb hauv nruab nrab hauv kev tsim cov dyes (piv txwv li, thiab agnaphys (piv txwv li cov tshuaj ntsuab xws li Bentazone).
Cov Ntaub Ntawv Kev Nyab Xeeb
Phthalic anhydride yog ib qho tsis sib haum thiab tuaj yeem ua rau muaj kev cuam tshuam ua pa, qhov muag puas tsuaj, thiab mob dermatitis los ntawm kev nqus tau los yog tawv nqaij. Cov tshuaj yog qhov phom sij nrog kev txwv tsis pub tshaj ntawm 1.7-10.4% hauv huab cua. Kev tuav kom tsim nyog yuav tsum muaj cov khoom siv tiv thaiv thiab yuav tsum muab cia rau hauv txias, cov xwm txheej qhuav deb ntawm oxidizing cov neeg sawv cev.
Tuam txhab tau
Gneebioyog kev tsim tawm tshwj xeeb hauv kev tshawb fawb, kev loj hlob, ntau lawm thiab muag ntawm lub xeev Henan, npog thaj tsam ntawm 3,600 square metres. Peb muaj tus kws tshaj lij, zoo-nruab nrog thiab cov pab pawg R & D muaj ntau dua 10 xyoo ntawm R & D kev paub. Peb lireagentCov khoom tau dav exported rau ntau lub tebchaws suav nrog Tebchaws Asmeskas, Tebchaws Russia, Tebchaws Asmeskas, Tebchaws Asmeskas, thiab peb muab cov kev pabcuam sai sai rau peb cov neeg siv khoom. Peb vam tias yuav tsim kev sib koom tes ntev thiab muaj kev sib koom tes hauv lub neej yav tom ntej thiab muab cov khoom lag luam zoo tshaj plaws rau peb cov neeg siv khoom.
Cov FAQ
Koj lub tuam txhab puas tuaj yeem lees txais customization thiab ua kom tau raws li cov neeg siv khoom tshwj xeeb?
Yog lawm, peb tuaj yeem ua tau.
Koj cov nqe lus them nqi yog dab tsi?
Hlau hloov chaw, PayPal, Western Union, Nyiaj xaj thiab Bitcoin.
Koj lub sijhawm khoom xa tuaj yog dab tsi?
Peb feem ntau nkoj tsis pub dhau 1-3 hnub tom qab tau txais koj cov nyiaj them poob haujlwm.
Cim npe nrov: Muaj Qib Kawm Phnthal anhydride rau cov yasizer ntau lawm wha}}} {}} {1}} Cov chaw tsim khoom, cov chaw tsim khoom, Hoobkas
