Methylenediphenyl diisocyanate (CAS # 26447-40-5)
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R20 - Ua phem los ntawm kev nqus pa R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R42/43 - Tej zaum yuav ua rau muaj kev hnov mob los ntawm kev nqus pa thiab kev sib cuag ntawm daim tawv nqaij. |
| Kev nyab xeeb piav qhia | S23 - Tsis txhob ua pa. S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. 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.) |
| UN IDs | TIAB SA 2811 |
Taw qhia
Xylene diisocyanate.
Khoom: TDI yog cov xim tsis muaj xim rau lub teeb daj nrog cov ntxhiab tsw ntxhiab tsw. Nws tuaj yeem soluble hauv cov kuab tshuaj organic thiab ua haujlwm nrog ntau cov tshuaj organic.
Kev Siv: TDI feem ntau yog siv los ua cov khoom siv raw rau polyurethane, uas tuaj yeem siv los tsim cov polyurethane ua npuas ncauj, polyurethane elastomer thiab coatings, adhesives, thiab lwm yam. TDI kuj tseem siv rau hauv thaj chaw xws li lub rooj zaum hauv tsheb, rooj tog zaum, khau, ntaub thiab tsheb coatings. .
Txoj kev npaj: TDI feem ntau yog npaj los ntawm cov tshuaj tiv thaiv ntawm xylene thiab ammonium bicarbonate ntawm qhov kub thiab txias. Cov tshuaj tiv thaiv tshwj xeeb thiab kev xaiv catalyst tuaj yeem cuam tshuam rau purity thiab tawm los ntawm cov khoom.
Cov Lus Qhia Txog Kev Nyab Xeeb: TDI yog ib yam khoom phom sij uas ua rau khaus thiab ua rau tawv nqaij, qhov muag thiab ua pa. Ntev mus ntev los yog raug rau qhov loj tuaj yeem ua rau ua pa puas, ua xua, thiab mob ntawm daim tawv nqaij. Thaum siv TDI, yuav tsum tau ceev faj kom tsim nyog, xws li hnav looj tsom iav, hnab looj tes thiab lub tshuab ua pa. Thaum khaws cia thiab tuav TDI, tsis txhob sib cuag nrog cov hluav taws kub thiab ua haujlwm nyob rau hauv qhov chaw muaj cua zoo. Hauv kev tsim khoom siv TDI, cov txheej txheem kev nyab xeeb thiab kev tswj hwm yuav tsum tau ua raws li nruj me ntsis.
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