Sebacic acid (decandioic acid) yog cov neeg sawv cev ntawm carboxylic acids. Muaj ntau lub npe rau qhov sib xyaw no, ib qho ntawm lawv yog decandioic acid. Nws yog dab tsi, thiab cov khoom no muaj dab tsi?
Kev sib txuas hauv qhov nutshell
Sebacic acid formula C10H18O4. Cov tshuaj no yog ib qho txwv acid uas muaj nyob rau hauv crystalline daim ntawv. Sebacic acid crystals tsis muaj xim. Tau txais cov khoom sib xyaw los ntawm cov roj castor.
tshuaj muaj zog
Vim sebacic acid yog carboxylic acid, nws ua raws li nws muaj tag nrho cov yam ntxwv ntawm lawv. Cov no suav nrog, piv txwv li, kev sib cuam tshuam nrog cov ntsiab lus yooj yim, vim tias cov ntsev tau txais. Kuj tseem muaj cov tshuaj tiv thaiv esterification, uas cov khoom pib yog cawv thiab kua qaub. Cov khoom ntawm qhov kev sib tshuam no yog ethers. Txhawm rau tsim cov npe raug rau cov tshuaj tiv thaiv ntawm cov kua qaub, ib tus yuav tsum paub tias nws cov ntsev thiab esters hu ua sebacates.
Tau txais
pom sebacic acid nyob qhov twg? Nws tuaj yeem pom hauv cov khoom cog li cas? Qhov sib xyaw no tau pom nyob hauv cov taum castor. Qhov no yog cov nroj tsuag los ntawm cov roj castor. Kev rho tawm cov kua qaub los ntawm cov roj no yog qhov nyuaj los ntawm qhov tseeb tias nws muaj kev sib xyaw ntawm ntau yam carboxylic acids. Tab sis tib lub sijhawm, cov txiaj ntsig ntawm sebacic acid tuaj yeem ncav cuag 30 txog 40%. Qhov twg yog qhov muaj txiaj ntsig tshaj plaws rau kev lag luam feem ntau.
khoom muag yog muag hauv daim ntawv, qhov yuav los ntawm qhov hnyav.
Lwm yam khoom
Sebacic acid yog siv los tsim ntau yam khoom, suav nrog tsev neeg. Qhov no txhais tau hais tias muaj kev sib cuag ncaj qha ntawm qhov sib xyaw no nrog ib tus neeg. Yog li ntawd, nws tsim nyog paub seb cov kua qaub no puas tsim nyog rau tib neeg. Cov tshuaj tau muab faib ua ntau pawg txaus ntshai, qhov sib xyaw no belongs rau 4. Qhov no qhia tau tias decandioic acid belongs rau cov tshuaj lom neeg tsawg.
Production
Cov chaw tsim khoom ntawm sebacic acid yog NIZHGORODKHIMPRODUKT. Cov khoom ntawm qhov sib xyaw no tsis yog nthuav tawm hauv daim ntawv me me, nws feem ntau tshwm sim hauv kev yuav khoom ntau thiab xa khoom. Nws yuav tsum raug sau tseg tias cov khoom siv tsis yog tsuas yog cov khoom tiav, tab sis kuj yog cov khoom siv raw los ntawm sebacic acid tau txais. Nyob rau hauv Lavxias teb sab Federation, nws muaj peev xwm tau txais cov kua qaub los ntawm cov khoom siv raw.
Ib qho khoom tseem ceeb ntawm decandioic acid yog tsim nyog sau cia. Qhov kev sib txuas no hlawv nyob rau hauv daim ntawv ntawm lub tswm ciab. Qhov no qhia tiasevaporation ntawm cov khoom los ntawm qhov chaw ntawm cov muaju. Sebacic acid yog cov khoom tawg. Kev tawg tuaj yeem tshwm sim yog tias muaj hmoov av ntau hauv huab cua, uas muaj ntau yam kuab paug, thiab lub txim tshwm sim. Yog li, koj yuav tsum tau ceev faj thaum ua haujlwm nrog kev sib txuas.
Daim ntawv thov
Sebacic acid muaj ntau yam kev siv. Hauv kev lag luam tshuaj, nws yog siv los ua tus neeg sawv cev ruaj khov hauv kev tsim cov nylon. Tsis tas li ntawd, nws tsis yog dispensed nrog nyob rau hauv zus tau tej cov polyester fibers. Feem ntau, sebacic acid yog siv los ua stabilizer ntawm ntau yam khoom thiab cov ntaub ntawv. Ntxiv nrog rau kev siv cov kua qaub nws tus kheej, derivatives ntawm no compound kuj siv tau zoo. Piv txwv li, esters ntawm sebacic acid yog siv los ua plasticizers.
Cov kua qaub no kuj siv rau hauv cov tshuaj hauv tsev, uas tus neeg siv, yog tias tsis yog txhua hnub, feem ntau. Kuj tseem siv los tsim cov tshuaj pleev ib ce zoo nkauj.
Tus nqi ntawm sebacic acid tuaj yeem hloov pauv, vim nws yog tsim los ntawm cov khoom siv raw rau kev tsim khoom. Thawj cov khoom siv raw yog castor, uas feem ntau pom nyob rau hauv qhov chaw sov ntawm lub ntiaj teb. Cov neeg muag khoom ntawm cov nroj tsuag no yog cov teb chaws xws li Is Nrias teb, Argentina, thiab lwm yam.
Tus nqi tsim raws li castor taum tau loj hlob thiab tus nqi yog dab tsi rau cov khoom xa tuaj. Nws yog vim cov nroj tsuagloj hlob nyob rau hauv ib qho kev nyab xeeb huab cua, sebacic acid, uas yog tsim los ntawm Lavxias teb sab tuam txhab, yog tau los ntawm raw cov ntaub ntawv ntawm txawv teb chaws tuaj. Lub ntim ntawm cov khoom tuaj yeem sib txawv, tab sis feem ntau yog siv lub hnab uas hnyav 25 kg.
