1,3-Butadiene / CAS 106-99-0
Kev Piav Qhia Luv:
Lub npe khoom: 1,3-Butadiene
CAS: 106-99-0
MF: C4H6
MW: 54.09
QAUV:
Qhov Ceev: 0.62 g/mL ntawm 20 °C (lit.)
Qhov kub hnyiab: -105 °F
cov lus qhia tshwj xeeb
| Khoom | Skev piav qhia meej |
| Qhov tsos | Tsis muaj xim, pob tshab, thiab tsis muaj cov tshuaj uas raug tshem tawm |
| 1,3-Butadiene | ≥99.5 |
| Tag nrho cov acetylene | ≤25 |
| Vinyl acetylene | ≤5 |
| Dimer | ≤0.1 |
| Acetonitrile | ≤1 |
| TBC | ≥20 |
| Peroxide | ≤5 |
| Cov khoom seem uas tsis hloov pauv | ≤0.01 |
| N-methylpyrrolidone (NMP) | ≤10 |
| Cov tshuaj carbonyl | ≤10 |
Kev Siv
Nws yog siv ua cov khoom siv raw rau cov roj hmab hluavtaws, cov roj hmab hluavtaws, cov fiber hluavtaws, cov yas ua kom zoo nkauj, cov xim pleev xim latex, thiab lwm yam. Butadiene yog cov khoom siv tseem ceeb rau kev tsim cov roj hmab hluavtaws (styrene-butadiene roj hmab, cis-polybutadiene roj hmab, nitrile-butadiene roj hmab, chloroprene roj hmab). Nrog rau kev txhim kho ntawm cov yas styrene, los ntawm kev sib xyaw styrene thiab butadiene, ntau yam resins nrog kev siv dav (xws li ABS resin, SBS resin, BS resin, MBS resin) tau tsim tawm, uas ua rau butadiene maj mam nyob hauv txoj haujlwm tseem ceeb hauv kev tsim cov resin. Tsis tas li ntawd, butadiene kuj tseem siv rau hauv kev tsim cov ethylidene norbornene (tus thib peb monomer ntawm ethylene-propylene roj hmab), 1,4-butanediol (engineering yas), adiponitrile (tus monomer ntawm nylon 66), sulfolane, anthraquinone, tetrahydrofuran, thiab lwm yam. Yog li ntawd, nws tseem yog cov khoom siv tshuaj lom neeg tseem ceeb. Butadiene kuj muaj ntau daim ntawv thov hauv kev tsim cov tshuaj zoo. Cov tshuaj zoo uas tau npaj siv butadiene ua cov khoom siv raw feem ntau suav nrog cov hauv qab no: (1) Nws dhau los ntawm Diels-Alder reaction nrog electron-deficient dieneophile compounds los tsim anthraquinone, thiab nws cov derivatives yog cov xim tseem ceeb intermediates, fungicides, thiab tshuaj tua kab. (2) Nws reacts nrog maleic anhydride (luv ua maleic anhydride) thiab tom qab ntawd condenses los tsim tetrahydrophthalic anhydride, uas tuaj yeem siv ua tus neeg sawv cev curing thiab plasticizer rau polyester resins thiab epoxy resins. Thaum tetrahydrophthalic anhydride raug oxidized ntxiv los ntawm nitric acid, butane tetracarboxylic acid tuaj yeem tau txais, uas yog cov khoom siv raw rau kev tsim cov xim dej-soluble. Ib yam li ntawd, thaum tetrahydrophthalic anhydride yog hydrogenated kom tau txais hexahydrophthalic anhydride, nws tuaj yeem siv ua tus neeg sawv cev curing rau epoxy resins. (3) Nws reacts nrog sulfur dioxide los tsim sulfolene, thiab tom qab ntawd nws tau formulated rau hauv cov kua dej thiab hydrogenated nyob rau hauv lub xub ntiag ntawm ib tug pob txha nickel catalyst los tsim sulfolane, uas yog ib tug xaiv cov kuab tshuaj rau aromatic hydrocarbon extraction. Ib tug sib tov ntawm sulfolane thiab diisopropanolamine yuav siv tau rau tshem tawm cov pa roj carbon dioxide. (4) Cov tshuaj tiv thaiv linear telomerization ntawm butadiene yog ib qho kev siv loj hauv kev lag luam. Tom qab linear dimerization, ib tug yim-carbon ncaj-saw olefin tau txais, thiab tom qab aldehydation thiab hydrogenation, nonanol tau txais, uas muaj cov ntawv thov tseem ceeb hauv kev tsim cov tshuaj tsw qab, surfactants, thiab cov roj nplua nyeem additives. Siv ib tug cobalt complex ua ib tug catalyst, nws dimer, trimer, thiab tetramer yog tag nrho cov khoom siv raw rau kev tsim cov cawv siab dua thiab macrocyclic musks. Nws yog soluble nyob rau hauv cawv thiab ethers, thiab kuj tuaj yeem yaj nyob rau hauv acetone, benzene, dichloroethane, amyl acetate, furfural, thiab cuprammonium acetate kua. Nws yog insoluble nyob rau hauv dej.
Ntim thiab Xa Khoom
raws li cov neeg siv khoom xav tau.
Yog cov khoom siv dav dav thiab tuaj yeem xa los ntawm dej hiav txwv thiab huab cua
Khaws cia thiab khaws cia
Lub neej txee: 24 lub hlis txij li hnub tsim khoom hauv cov ntim khoom tsis tau qhib khaws cia rau hauv qhov chaw txias thiab qhuav kom tsis txhob raug tshav ntuj ncaj qha, dej.
Lub tsev rau khoom muaj cua nkag, ziab kom qhuav kub tsawg, Sib cais ntawm cov tshuaj oxidants, cov kua qaub.
