Khoom Description
2,6-Naphthalenedicarboxylic Acid (CAS 1141-38-4) yog cov organic carboxylic acid compound nrog cov mis molecular ntawm C12H8O4 thiab molecular hnyav ntawm 216.19. Nyob rau hauv chav tsev kub, nws tshwm sim li dawb mus rau daj ntseg daj crystals los yog hmoov, featuring ib tug naphthalene nplhaib nyob rau hauv nws cov qauv molecular.
Nrog lub melting point tshaj 300℃thiab ib tug ceev ntawm kwv yees li 1.5 g / cm³, 2,6-Naphthalenedicarboxylic Acid yog me ntsis soluble nyob rau hauv dej tab sis yooj yim yaj nyob rau hauv kub ethanol, acetone, thiab lwm yam polar organic solvents, tsim ib tug ntshiab tov nyob rau hauv kub pyridine.
Cov ntaub ntawv yooj yim
|
Yam khoom |
SPECIFICATION |
|
Melting point |
>300℃(lit.) |
|
Cia temp. |
Muab kaw rau hauv qhuav, Chav Kub |
|
Xim |
dawb |
|
Refractive Index |
1.7080 |
|
Daim ntawv |
Hmoov |
|
Qhov ntom |
1.5 |
|
Boiling point |
316,6 degree |
|
pka ua |
3.69 |
Kev Siv / Kev Npaj
Kev siv:
Hauv cov ntaub ntawv polymer, 2,6-naphthalenedicarboxylic acid ua haujlwm ua monomer rau kev sib xyaw ua ke nrog ethylene glycol thiab butanediol, yielding polyethylene naphthalate (PEN) thiab polybutylene naphthalate (PBN). Cov ntaub ntawv polyester no muaj lub zog siab, siab kub tsis kam (muaj peev xwm ua tau ntev -} siv sijhawm ntev txog 180℃), thiab cov tshuaj tiv thaiv zoo heev, ua rau lawv siv dav hauv fiber ntau, F-chav rwb thaiv tsev cov ntaub ntawv, thiab kua siv lead ua polymers (LCP).
Txoj Kev Npaj:
- 2,6-Naphthalenedicarboxylic acid yog npaj los ntawm ob txoj kev tseem ceeb: oxidation thiab esterification cov tshuaj tiv thaiv.
- Cov tshuaj tiv thaiv oxidation feem ntau yog siv cov concentrated sulfuric acid thiab concentrated nitric acid los oxidize naphthalene-2,6-dimethyl ether rau naphthalene-2,6-dicarboxylic acid.
- Esterification suav nrog cov tshuaj tiv thaiv ntawm naphthalene-2,6-dimethanol nrog formic acid los ua ib qho ester, uas yog tom qab ntawd hydrolyzed los ntawm cua sov thiab kua qaub los tsim naphthalene-2,6-dicarboxylic acid.
Tuam txhab Profile
Gnee Chem ib txwm ua raws li kev lag luam- taw qhia, sib koom ua ke ntau lawm, kev kawm thiab tshawb fawb cov kev pabcuam, thiab muab ib qho - nres kev pabcuam raws li cov kev xav tau sib txawv ntawm cov neeg siv khoom, Gnee Chem tseem niaj hnub kawm thiab qhia txog kev tswj xyuas qib siab hauv tsev thiab txawv teb chaws los txhim kho cov kev sib tw tseem ceeb ntawm kev lag luam. kev sib tw tseem ceeb. Siv zog los muab kev pabcuam rau txhua tus tib lub sijhawm, peb kuj tuaj yeem txhim kho tau zoo thiab nrawm dua.
FAQ
Qhov chaw nres nkoj ntawm kev thauj khoom nyob qhov twg?
Feem ntau Tianjin chaw nres nkoj lossis Qingdao chaw nres nkoj.
Kuv yuav tau txais cov qauv li cas?
Thov dais tus nqi coj mus kuaj thiab tus nqi xa mus txog thaum peb tau txais koj thawj qhov kev txiav txim. Peb yuav rov qab them tus nqi coj mus kuaj thaum koj tso koj thawj qhov kev txiav txim.
Sijhawm Sampling
Cov khoom uas twb muaj lawm: hauv 7-10 hnub ua haujlwm
Yuav ua li cas txog cov khoom zoo?
Cov khoom yuav raug tshuaj xyuas nruj me ntsis ua ntej xa zaub mov, yog li qhov zoo tuaj yeem lav.
Peb tuaj yeem tuaj xyuas koj lub tuam txhab?
Tau kawg, txais tos txhua lub sijhawm. Pom yog kev ntseeg.
Cim npe nrov: cas 1141-38-4|2,6-naphthalenedicarboxylic acid, Tuam Tshoj cas 1141-38-4|2,6-naphthalenedicarboxylic acid manufacturers, lwm tus neeg, Hoobkas
