Methyl Palmitateyog tshuaj lom neeg nrog cov tshuaj siv tshuaj lom neeg ntawm C17h34o2. Nws yog lub zog dawb, insoluble hauv dej, yooj yim soluble hauv dej cawv, acetone, chlaceoform thiab benzene, soluble, solububle hauv dej. Nws yog ib qho teeb meem acaricidal nyob rau hauv ntsuab Walnut plhaub, uas tuaj yeem tiv thaiv kev ua haujlwm phabocytic thiab tiv thaiv kab mob. Nws tseem muaj anti-inflammatory thiab anti fibrosis cuam tshuam. Zam kev sib cuag nrog muaj zog oxides thaum lub sijhawm cia. Khaws rau hauv qhov chaw txias thiab qhuav. Xyuas kom meej tias qhov kev cob qhia tau muaj cua zoo. Cia kom deb ntawm qhov chaw tiv taws. Cia kub: 2 ~ 8 º C. Nws muaj kev ruaj khov zoo thiab muaj nyob rau hauv flue-kho luam yeeb, burley luam yeeb. Nws yog cov khoom siv raw ntawm surfactants thiab lwm yam khoom siv tshuaj zoo. Nws yog kev ua tau zoo heev rau kev tsim cov emulsifiers, cov chaw ntub dej, stabilizers, xeb inibitors thiab cov tshuab yas. Nws kuj tseem tuaj yeem siv raws li kev pheromones biological, biodiesel, pleev xim rau cov khoom siv nyoos thiab cog acaricides.
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Tshuaj Cov Qauv |
C17H34O2 |
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Muaj pes tsawg leej |
270 |
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Molecular hnyav |
270 |
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m/z |
270 (100.0%), 271 (18.4%), 272 (1.6%) |
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Kev Ntsuam Xyuas |
C, 75.50; H, 12.67; O, 11.83 |
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Melting point 32-35 ° C (lit.), Boiling point 185 ° c/10 mmHg (lit.), Density 0.852 g/ml at 25 ° C (lit.), Refractive index n20/d 1.4512 (lit.), Flash point >23 {0 degree f, cia}} degree c, kua degree tsis muaj xim, xim solubility, ua kua solubility, brn 1780973
Methyl Palmitateyog ib yam tshuaj uas nquag pom nyob rau hauv xwm, nrog cov ntsiab lus siab, thiab yog cov ntoo tseem ceeb, cov nroj tsuag, tshuaj ntsuab, thiab nroj tsuag tsiaj. Ib qho ntxiv, nws tseem muaj nyob hauv qee cov tsiaj rog tsiaj, xws li cov roj muaj roj ntawm cov kooj. Cov thoob plaws lub hav zoov muab cov nplua nuj raw cov khoom siv ua kom zoo rau nws cov ntawv thov ntau yam.
Tshuaj Yeeb Nkab Teb
Nws yog cov khoom siv raw rau surfactants thiab lwm yam khoom siv tshuaj zoo. Vim nws cov tshuaj lom neeg tshwj xeeb, nws tuaj yeem ua lub luag haujlwm tseem ceeb hauv cov txheej txheem ntau lawm ntawm cov khoom siv tshuaj lom.
Kev txheeb xyuas kab
Bioinformics: Nws yog ib qho ntawm cov cheebtsam ntawm bioinformics. Nyob rau hauv xwm, ntau yam tsiaj muaj sia xa cov ntaub ntawv los ntawm kev tso cov khoom siv tshwj xeeb hu ua pheromones. Raws li ib qho ntawm lawv, nws koom nrog cov txheej txheem ntawm cov ntaub ntawv sib kis ntawm cov muaj sia.
Biodiesel: Nws tseem yog ib qho tseem ceeb ntawm biodiesel. Biodiesel yog lub zog hloov dua tshiab thiab huv si los ntawm cov roj zaub, roj, thiab roj pov. Raws li ib qho ntawm cov ntsiab lus tseem ceeb ntawm cov khoom siv raw, nws ua lub luag haujlwm tseem ceeb hauv cov txheej txheem ntau lawm hauv kev ua haujlwm ntawm biodiesel. Los ntawm cov tshuaj tiv thaiv tshwj xeeb, nws tuaj yeem hloov pauv mus rau hauv biodiesel, muab kev xaiv hluav taws xob tshiab thiab muaj zog rau lub zog hluav taws xob.
Khoom Noj thiab Cov Tshuaj pleev Kev Lag Luam
Ntxiv Ntxiv Ntxiv: Yuav siv tau los ua cov tshuaj ntxiv hauv cov zaub mov thiab kev lag luam pleev. Nws tuaj yeem siv roj thiab roj roj los ntawm kev ua kom qeeb ntawm tus kheej oxidation txheej txheem ntawm cov roj ntsha tsis tau muaj txiaj ntsig, yog li txuas lub txee lub neej ntawm cov zaub mov thiab cov tshuaj pleev ib ce. Piv txwv li, hauv cov khoom noj xws li roj tau noj, cov roj ntsha tub rog, thiab ncuav pastries, nws tuaj yeem siv los tiv thaiv cov zaub mov los ntawm kev xau vim oxidation.
Cov khoom xyaw ua kom zoo nkauj: Hauv cov tshuaj pleev ib ce, lawv tuaj yeem siv ua emulsifiers kom pab cov roj thiab cov dej sib xyaw ua ke zoo dua thiab ua kom ruaj khov emulsions. Ib qho ntxiv, nws kuj tseem tuaj yeem raug siv ua cov moisturizer, mos muag, thiab lwm cov khoom xyaw los txhim kho cov neeg siv tshuaj pleev ib ce.
Nyob rau hauv teb ntawm kev ua liaj ua teb
Kev npaj cov nroj tsuag acaricides: tuaj yeem siv los npaj cov nroj tsuag acaricides. Cog cov acaricides yog cov tshuaj lom neeg siv los tiv thaiv thiab tswj hwm cov kev tsim txom ntawm mites ntawm cov nroj tsuag. Raws li ib qho ntawm cov khoom xyaw zoo, nws tuaj yeem tua lossis tiv thaiv kev loj hlob ntawm mites los ntawm kev loj hlob tshwj xeeb ntawm cov nroj tsuag ntawm cov nroj tsuag.
Kev tiv thaiv thiab tswj cov kab mob qoob loo thiab kab tsuag: ntxiv rau kev npaj cov roj av acaricides, lawv kuj tuaj yeem siv los tiv thaiv thiab tswj lwm yam kab mob qoob loo thiab kab tsuag. Piv txwv li, cov kev tshawb fawb tau qhia tias nws muaj qee yam kev tswj hwm ntawm cov hauv paus yav qab teb nematodes. Los ntawm npajMethyl PalmitateMus rau hauv qee qhov kev xav ntawm ethanol daws thiab thov nws rau av, kis tus kab mob thiab kev puas tsuaj ntawm cov qoob loo yav qab teb nematodes nematodes rau cov qoob loo tuaj yeem ua tau zoo. Qhov kev tshawb fawb no muab cov tswv yim tshiab rau nws daim ntawv thov hauv thaj chaw ua liaj ua teb.
Siv teb
Nws kuj tseem siv tau rau kev npaj ntawm lub zog-txuag theem hloov cov ntaub ntawv hauv cov tuam tsev. Phase hloov cov khoom siv tau cov tshuaj uas tuaj yeem nqus thiab tso tawm thaum tshav kub kub, thiab yauv hla theem hloov pauv tau ntau yam ntsuas kub. Los ntawm kev sib xyaw thiab cov feem sib xyaw nrog lwm theem hloov pauv cov ntaub ntawv xws li methyl stearate, theem hloov cov khoom siv nrog cov theem tshwj xeeb thiab cov cua sov tuaj yeem npaj tau. Cov theem hloov no tuaj yeem siv rau cov hnab ntawv lub hnab ntawv tsim kho kom sov thiab txhim kho lub zog txuag ntawm cov tuam tsev los ntawm kev nqus kom muaj cua sov thiab tso cua sov.
Piv txwv li, ncaj qha methyl palmitte / methyl stearate theem hloov cov ntaub ntawv los ua kom cov theem hloov pauv thiab txhim kho lub thermal kev nplij siab; Tib lub sijhawm, nws kuj tseem tuaj yeem txhim kho lub hnab ntawv rwb thaiv tsev ntawm lub tsev, txo qis kev nqis tes ua kom sov, kev ua haujlwm, thiab kev txij nkawm ntawm cov tshuab cua txias.
Lwm cov kev ua piv txwv
Raws li cov kuab tshuaj: nws muaj qee yam solubility thiab tuaj yeem siv ua cov kuab tshuaj. Piv txwv li, hauv cov txheej txheem ntau lawm ntawm cov txheej txheem, xim pleev xim, thiab lwm yam khoom, nws tuaj yeem siv los ua cov kuab tshuaj kom yaj lwm cov khoom thiab ua ib qho sib xyaw sib xyaw.
Raws li cov roj nplua nyeem: nws kuj tseem siv tau ua cov roj nplua nyeem. Thaum lub sijhawm ua haujlwm ntawm cov khoom siv kho txhua yam, cov roj nplua nyeem yuav tsum tau muab ntxiv rau kev sib txhuam thiab hnav. Raws li cov khoom siv nrog cov khoom siv lubricating, nws tuaj yeem ua lub luag haujlwm tseem ceeb hauv lubrication system ntawm cov cuab yeej siv txhua yam.
Raws li lub tshuab yas: thaum ua cov yas ua, nws yog ib qho tsim nyog los ntxiv cov tshuab yas kom txhim kho kom haum thiab ua kom tiav ntawm cov yas. Raws li cov khoom siv nrog cov khoom siv yas, nws tuaj yeem raug ntxiv rau plastics los txhim kho lawv cov khoom yoog tau thiab ua tiav.
Kev siv hluav taws xob tsawg dua thiab zoo methylal palripic acid tau zoo li siv cov khoom siv lub cev qhuav roj ntsha sab nraud, nrog cov ntaub ntawv palsoric sab nraud Adsoric acid thiab nkc {2}} resin ua catalyst. Cov thev naus laus zis no muaj qhov zoo ntawm kev ua haujlwm yooj yim, cov tshuaj tiv thaiv me, muab txoj kev zoo, muab cov qauv tshiab thiab tau zoo rau cov khoom lag luam.
Cov kauj ruam tshwj xeeb yog raws li hauv qab no:
(1) Kev npaj cov khoom siv raw: palmatic acid, methanol, nkc -9 resin catalyst, thiab 3a molecular sab cib.
(2) Sib tov palmomic acid thiab methanol nyob rau hauv ib qho kev faib ua feem, ntxiv nkc -9 Resin catalyst, thiab do tusyees.
(3) Raws li kev txiav txim ntawm 3a molecular sab sab nraud sab nraud adsorption lub tshuab nqus dej lub cev qhuav dej, cov sib tov yog lub cev qhuav dej.
(4) Ua kom sov lub cev qhuav dej kom sib xyaw kom dhau cov tshuaj tiv thaiv kev xav ntawm cov tshuaj tiv thaiv acd thiab methanol.
(5) Tom qab cov tshuaj tiv thaiv tau ua tiav, cov khoom lag luam txias thiab crystallized los cais cov khoom.
Cov hauv qab no yog cov tshuaj lom neeg rau cov qauv no:
Ch3Ch2CH2COOH + CH3Oh=ch3Ch2Ch2Txoj cai3 + H2O
Nyob rau hauv cov tshuaj tiv thaiv, ch3ch2ch2Cooh sawv cev ntawm pald, ch3oh sawv cev methanol, ch3ch2ch2cooch3 sawv cev rau methylalic acd, thiab h2o sawv cev dej. Cov kev tshwm sim yog cua sov thiab catalyst yog nkc -9 cob.
Cov ntsiab lus ntxaws ntxaws rau kev sib txuasMethyl PalmitateLos ntawm cov txheej txheem Eserification yog raws li hauv qab no:
Cov Khoom Siv Khoom Siv Raw: Palmimic Acd, methanol, catalyst (feem ntau sulfuric acd lossis sodium hydroxide), thiab cov kuab tshuaj uas tsim nyog.
Cov Khoom Siv Khoom Siv: Agitator, Rhaub, Condenser, Separator, thiab Tsim Nyog Pipelines.
(1) Sib tov palmomic acid thiab methanol hauv ib qho kev piv txwv. Feem ntau, cov qauv hniav phem yog nruab nrab ntawm 1: 1 thiab 1: 5. Cov feem ntau yuav tsum tau txiav txim siab raws li cov tshuaj tiv thaiv thiab cov kev xav tau ntawm Esterification.
(2) Ntxiv catalyst mus rau qhov sib xyaw. Yog tias Sulfuric ACD yog siv los ua cov tshuaj tua neeg, cov nyiaj ib txwm ntxiv yog {}}. 5% ntawm qhov loj ntawm palmitter acd. Yog tias sodium hydroxide siv, qhov kev sib ntxiv yog feem ntau {}}. 5% rau 1% ntawm qhov loj ntawm methanol. Txoj haujlwm ntawm cov catalyst yog txhawm rau kom nrawm dua cov tshuaj tiv thaiv esterification.
(3) Raws li kev txiav txim ntawm ib tug stirrer, qhov sib tov yog rhuab rau cov tshuaj tiv thaiv kub. Feem ntau hais lus, cov kev tshwm sim tshiab tshwm sim tsis pub dhau qhov kub thiab txias ntawm {1}} degree. Qhov xwm txheej tshwj xeeb yuav tsum raug txiav txim siab raws li hom catalyst thiab cov tshuaj tiv thaiv.
(4) Tswj qee lub sijhawm kev xav tau los tso cai rau cov tshuaj uas xav tau cov tshuaj tiv thaiv los ua tiav. Cov tshuaj tiv thaiv lub sijhawm feem ntau yog nruab nrab ntawm {}}}}}}}}}} sijhawm, thiab lub sijhawm tshwj xeeb yuav tsum txiav txim siab raws li cov tshuaj tiv thaiv kev kawm thiab cov khoom lag luam.
Kev tshuaj lom neeg tshuaj yog li nram qab no:
Ch3(Ch2)14Cooh + Ch3Oh → ch3(Ch2)14Txoj cai3 + H2O
Qhov kev sib txig sib luag no piav qhia cov txheej txheem ntawm palripic acid (CH3 (CH3) 14Cooh) thiab metylal los ua methylal pantid (CH3) 14Cooch3) thiab dej (H2o).
(1) Tom qab cov tshuaj tiv thaiv tiav, txias cov tshuaj tiv thaiv kev daws teeb meem thiab kev sib deev methylaltate thiab tsis paub siv cov ntaub ntawv raw los ntawm ib tug separator. Txoj kev sib cais ib txwm siv cov hau kev xws li distillation lossis extraction.
(2) Purify qhov sib cais nws kom tshem tawm tej yam impurities. Txoj kev huv tib si feem ntau distillation lossis crystallization.
(3) Kuaj cov khoom kom huv kom ntseeg tau tias nws cov txiaj ntsig zoo ntawm cov qauv. Cov kev kuaj pom yog feem ntau chromatographic tsom xam lossis tsom xam pom, thiab lwm yam.
Hauv cov txheej txheem sau ncaj qha, muaj cov sulfuric acd mob corrodes cov cuab yeej, ua rau nws nyuaj cais cov khoom lag luam. Cov txheej txheem kev kho mob yog cov nyom, thiab cov dej ntas ua rau muaj kev ua kom muaj kuab paug. Tsis tas li ntawd, cov txiaj ntsig oxidizing muaj zog ntawm cov sulfuric acd thaum lub sij hawm cov txheej txheem kev tshwm sim tuaj yeem ua rau cov xim ntawm cov khoom kom tsaus ntuj. Yog li ntawd, nyob rau hauv xyoo tsis ntev los no, muaj ib puag ncig cov neeg ua haujlwm, xws li cov roj ntsha sauv, thiab cov kua roj ntsha ua kom zoo, thiab cov kua roj ntsha ua si, CaCl2 lub cev qhuav dej, ntau dhau ntawm cov tshuab hluav taws xob, microwave thev naus laus zis, thiab lwm yam molecular Sole Technology yog paub tab thiab yooj yim txhawb nqa.
Cim npe nrov: Methyl Patmitate Cas {112-39-0, cov chaw muag khoom, chaw tsim khoom, Hoobkas, lag luam, yuav khoom, loj, rau muag