Dimethyl disulfide/CAS: 624-92-0
Kev Piav Qhia Luv:
Lub Npe Khoom: Dimethyl disulfide
CAS: 624-92-0
MF:C2H6S2
MW:94.2
QAUV:
Kev piav qhia:
Dimethyl disulfide muaj ntxhiab tsw qab ntawm cov dos. Nws tsis yog lachrymatory. Ironically, txawm hais tias ntau tus pom nws cov ntxhiab tsw tsis zoo ntawm cov concentration siab raws li tau hais los saum toj no, thaum diluted, nws cov aroma kuj tau piav qhia tias zoo. Dimethyl disulfide feem ntau siv ua ke nrog lwm cov khoom qab zib hauv cov khoom noj, suav nrog cov khoom ci, cheese, cov khoom noj mis nyuj khov, cov khoom noj nqaij, kua zaub, cov tsw qab, cov txiv hmab txiv ntoo qab, khoom qab zib mos, gelatin, puddings, thiab ob qho tib si dej cawv thiab tsis muaj cawv.
Cov Lus Qhia Tshwj Xeeb
| Khoom | Cov Lus Qhia Tshwj Xeeb |
| Qhov kub yaj | -85 °C |
| Kub taw tes | 109 ° C (lit.) |
| Qhov Ceev | 1.0625 |
| Qhov ceev ntawm cov pa dej | 3.24 (piv rau huab cua) |
| Lub zog ua pa | 22 hli Hg ( 20 °C) |
| Cov ntsuas kev cuam tshuam | n20/D 1.525 (lit.) |
| Fp | 76 °F |
| Xim | Xim daj ntshiab |
| Daim Ntawv | Kua |
Kev Siv
Hauv kev lag luam, Dimethyl disulfide kuj tseem siv ua tus neeg sawv cev sulfiding los ua kom cov tshuaj tiv thaiv hauv cov chaw ua roj thiab lwm yam kev lag luam. Nws muaj qhov kub qis ntawm 16 ℃ (61 ° F) uas ua rau muaj kev phom sij hluav taws thaum siv cov chaw ua roj. Vim nws muaj ntxhiab tsw zoo thiab qhov kub qis, Dimethyl disulfide feem ntau yuav tsum khaws cia rau hauv qab lub siab nitrogen hauv cov thawv kaw.
Dimethyl disulfide muaj ntxhiab sulfurous zoo ib yam li qej thiab ntses lwj. Vim yog qhov tsw ntawm cov tshuaj sulfur, zoo ib yam li DMDS, lawv feem ntau ntxiv rau cov roj av thiab propane kom ceeb toom txog kev xau thiab tiv thaiv tib neeg. Yog li ntawd, qhov tsw ntawm DMDS fumigation tuaj yeem yuam kev rau qhov xau roj. DMDS muaj qhov tsw ntawm kwv yees li 7 ppb, uas yog kwv yees li 8 npaug tsawg dua qib kev noj qab haus huv uas EPA xav tias muaj kev nyab xeeb (55 ppb).
Dimethyl disulfide siv ua ib qho khoom nruab nrab thiab ua ib qho khoom noj ntxiv rau hauv dos, qej, cheese, nqaij, kua zaub, cov khoom qab thiab cov txiv hmab txiv ntoo. Nws siv rau hauv cov chaw ua roj ua ib tus neeg sawv cev sulfiding. Nws siv los hloov alfa 2-methylfuran-acrolein los tsim cov khoom noj. Nws koom nrog kev npaj 4-(methylthio)phenol. Ntxiv mus, nws siv los hloov methyl mercaptan ua ib qho khoom siv roj dav hlau. Nws pom daim ntawv thov hauv cov neeg sawv cev tsw qab dag thiab cov tshuaj tiv thaiv xeb. Ntxiv rau qhov no, nws ua haujlwm ua ib qho tshuaj tua kab mob hauv av hauv kev ua liaj ua teb.
Ntim Khoom
200KG / Nruas los yog raws li cov neeg siv khoom xav tau.
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.
