Lub npe tshuaj:2,6 Di-tert-buty1-4-methylphenol
Specification
| Yam khoom | Index | |
| Qib Industrial | qib zaub mov | |
| Qhov tshwm sim | Dawb crystalline hmoov los yog crystalline hmoov | Dawb crystalline hmoov los yog crystalline hmoov |
| Purity,% | 99 | 99.9 |
| Thawj MP οC Ntau dua lossis sib npaug | 69.0-70.5 | 69.0-70.5 |
| Kev poob cua sov, % Tsawg dua lossis sib npaug | 0.5 | 0.5 |
| Tshauv% | 0.01 | 0.01 |
| Sulfate (raws li SO4)% Tsawg dua lossis sib npaug | 0.002 | 0.002 |
| Cov hlau hnyav (raws li Pb), % Tsawg dua lossis sib npaug | -- | 0.0004 |
| Raws li, % Tsawg dua lossis sib npaug | -- | 0.0001 |
| Dawb cresol(raws li p-cresol) % Tsawg dua lossis sib npaug | 0.012 | 0.012 |
Cov khoom
Nrog cov txheeb ze ntom ntom ntawm 1.048, boiling point ntawm 257-265oC thiab flash point ntawm 126.6oC, nws yog me ntsis soluble nyob rau hauv benzene, toluene, acetone, ethanol, carbon tetrachloride, ethyl acetate thiab roj av. Nws yog insoluble hauv dej thiab dilute sodium hydroxide. Nws yog nontoxic thiab yuav maj mam deteriorate thaum raug lub teeb nrog siv cov teebmeem cuam tshuam.
Daim ntawv thov
Cov khoom no yog ib qho tseem ceeb ntawm ntau yam uas tsis yog - cov pa phem antioxidants thiab nws muaj qee yam kev tiv thaiv los tiv thaiv cov cua sov oxidant ntawm cov roj hmab ntuj, thiab cov roj hmab hluavtaws xws li buthl benzene, butylnitrile thiab lwm yam. Nws tuaj yeem siv rau kev tsim khoom dawb, ntau yam - xim, lub teeb, thiab pob tshab roj hmab khoom (xws li cov khoom siv roj hmab). Nws tuaj yeem tawg tau yooj yim hauv cov khoom siv roj hmab. Vim nws tsis muaj toxicity, nws tseem tuaj yeem siv rau kev tsim tshuaj lossis khoom siv tu cev thiab ua zaub mov.
Ntim
25kg NW / hnab, inplastic npuag laminated kraft hnab lined nrog hnab yas.
Cia
Cov khoom yuav tsum zam lub hnub ci.
Txoj Kev Npaj:
Siv p-cresol thiab tert-butanol ua cov khoom siv raw, lawv tau ntxiv rau hauv cov hlab ntsha ntawm cov molar ratio ntawm 1: 1.1 thiab rhuab kom yaj. Cov tshuaj tiv thaiv yog nqa tawm nyob rau hauv lub zog stirring ntawm 65-70℃nrog phosphoric acid raws li ib tug catalyst. Tom qab cov tshuaj tiv thaiv tiav, cov tshuaj tiv thaiv yog thawj zaug ntxuav nrog 10% sodium hydroxide tov kom txog thaum alkaline, ces ntxuav nrog dej kom txog thaum nruab nrab. Cov kuab tshuaj raug tshem tawm, thiab cov khoom siv recrystallized los ntawm ethanol kom tau txais cov khoom kawg. Lwm txoj hauv kev yog reacting isobutylene nrog p-cresol thiab concentrated sulfuric acid ntawm 65-70℃. Cov khoom siv tshuaj tiv thaiv yog tom qab ntawd raug ntxuav, nruab nrab, thiab crystallization kom tau txais cov khoom kawg.
Cim npe nrov: roj hmab antioxidants bht, Tuam Tshoj roj hmab antioxidants bht manufacturers, lwm tus neeg, Hoobkas
