Dimethyl Disulfide (CAS # 624-92-0)
| Risk Codes | R11 - Cov nplaim hluav taws kub heev R20/22 - Ua phem los ntawm kev nqus pa thiab yog tias nqos. R36 - Khau qhov muag R51/53 - Cov tshuaj lom rau cov kab mob hauv dej, tuaj yeem ua rau muaj kev cuam tshuam ntev rau hauv dej hiav txwv. R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R26 - Mob heev los ntawm kev nqus pa R22 - Ua phem yog tias nqos R36/37 - Kab mob rau qhov muag thiab ua pa. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S61 - Tsis txhob tso tawm rau ib puag ncig. Xa mus rau cov lus qhia tshwj xeeb / cov ntaub ntawv kev nyab xeeb. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S38 - Yog tias qhov cua tsis txaus, hnav cov khoom ua pa uas tsim nyog. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S28A - S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S60 - Cov khoom no thiab nws lub thawv yuav tsum tau muab pov tseg raws li cov khoom pov tseg. S57 - Siv lub thawv tsim nyog kom tsis txhob muaj kev sib kis ntawm ib puag ncig. S39 - Hnav qhov muag / ntsej muag tiv thaiv. S29 - Tsis txhob muab tso rau hauv qhov dej. |
| UN IDs | UN 2381 3/PG 2 |
| WGK Germany | 2 |
| RTECS | YOG 1927500 |
| TSCA | Yog lawm |
| HS Code | 29309070 ib |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 qhov ncauj hauv Luav: 290 - 500 mg / kg |
Taw qhia
Dimethyl disulfide (DMDS) yog cov organic compound nrog cov tshuaj formula C2H6S2. Nws yog cov kua uas tsis muaj xim nrog cov ntxhiab tsw ntxhiab tsw.
DMDS muaj ntau yam kev siv hauv kev lag luam. Ua ntej, nws yog feem ntau siv los ua sulfidation catalyst, tshwj xeeb tshaj yog nyob rau hauv kev lag luam roj av los txhim kho kev ua haujlwm ntawm refining thiab lwm cov txheej txheem roj. Qhov thib ob, DMDS kuj yog ib qho tseem ceeb ntawm cov kab mob fungicide thiab tshuaj tua kab uas tuaj yeem siv rau hauv kev ua liaj ua teb thiab horticulture, xws li tiv thaiv cov qoob loo thiab paj ntawm cov kab mob thiab kab tsuag. Tsis tas li ntawd, DMDS yog dav siv los ua ib qho reagent hauv tshuaj synthesis thiab organic synthesis tshuaj.
Txoj kev tseem ceeb ntawm kev npaj DMDS yog los ntawm cov tshuaj tiv thaiv ntawm carbon disulfide thiab methylammonium. Cov txheej txheem no tuaj yeem ua tiav ntawm qhov kub thiab txias, feem ntau yuav tsum tau siv cov catalysts los pab txhawb cov tshuaj tiv thaiv.
Hais txog cov ntaub ntawv kev nyab xeeb, DMDS yog cov kua ua kua thiab muaj ntxhiab tsw. Cov cuab yeej tiv thaiv tsim nyog xws li hnab looj tes, tsom iav kev nyab xeeb, thiab cov khaub ncaws tiv thaiv yuav tsum hnav thaum tuav thiab siv. Nyob rau tib lub sijhawm, nws yuav tsum tau khaws cia kom deb ntawm qhov hluav taws kub thiab qhov chaw sov kom tsis txhob muaj hluav taws kub los yog tawg. Rau kev khaws cia thiab kev thauj mus los, DMDS yuav tsum tau muab tso rau hauv ib lub thawv airtight thiab khaws cia rau hauv qhov chaw txias, qhuav, zoo-ventilated qhov chaw, deb ntawm oxidants thiab ignition. Nyob rau hauv qhov kev tshwm sim ntawm ib qho kev huam yuaj, yuav tsum tau muab tshem tawm cov kev ntsuas tsim nyog tam sim ntawd thiab yuav tsum tau ua kom muaj cua tshuab kom zoo.
