Tom ntej: Methyl phenyl Disulfide (CAS # 14173-25-2)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R10 - Flammable |
| Kev nyab xeeb piav qhia | S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. |
| HS Code | 293 099 ib |
Taw qhia
Methylphenyl disulfide (tseem hu ua methyldiphenyl disulfide) yog cov organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm methylphenyl disulfide:
Zoo:
- Cov tsos mob: tsis muaj xim rau cov kua daj daj
- Tsis hnov tsw: muaj ib tug peculiar sulfide tsw
- Flash Point: Kwv yees li 95 ° C
- Solubility: Soluble nyob rau hauv cov organic solvents xws li ethanol thiab dimethylformamide
Siv:
- Methylphenyl disulfide feem ntau yog siv los ua vulcanization accelerator thiab crosslinker.
- Nws yog feem ntau siv hauv kev lag luam roj hmab rau cov vulcanization cov tshuaj tiv thaiv ntawm cov roj hmab, uas tuaj yeem txhim kho qhov hnav tsis kam, tiv thaiv tshav kub thiab lub cev thiab lub zog ntawm cov roj hmab.
- Methylphenyl disulfide kuj tseem siv tau rau hauv kev npaj tshuaj xws li dyes thiab tshuaj tua kab.
Txoj kev:
Methylphenyl disulfide tuaj yeem npaj los ntawm cov tshuaj tiv thaiv ntawm diphenyl ether thiab mercaptan. Cov txheej txheem tshwj xeeb yog raws li hauv qab no:
1. Nyob rau hauv ib qho chaw inert, diphenyl ether thiab mercaptan maj mam ntxiv rau lub reactor ntawm ib qho molar ratio.
2. Ntxiv ib qho acidic catalyst (xws li, trifluoroacetic acid) los pab txhawb cov tshuaj tiv thaiv. Cov tshuaj tiv thaiv kub yog feem ntau tswj ntawm chav tsev kub lossis kub dua me ntsis.
3. Tom qab qhov kawg ntawm cov tshuaj tiv thaiv, cov khoom xav tau methylphenyl disulfide yog cais los ntawm distillation thiab purification.
Cov ntaub ntawv kev nyab xeeb:
- Methylphenyl disulfide yog cov organic sulfide uas yuav ua rau qee qhov khaus thiab toxicity rau tib neeg lub cev.
- Hnav cov hnab looj tes tiv thaiv tsim nyog, tsom iav, thiab lub ntsej muag roj thaum ua haujlwm kom tsis txhob sib cuag nrog cov tawv nqaij thiab nqus pa.
- Tsis txhob sib cuag nrog cov tshuaj oxidizing muaj zog thiab cov kua qaub kom tsis txhob muaj kev phom sij txaus ntshai.
- Khaws kom deb ntawm qhov hluav taws kub kom tsis txhob muaj hluav taws xob zoo li qub.
- Ua raws li kev khaws cia kom raug thiab kev coj ua kom tsis txhob muaj xwm txheej.
