Styrene (CAS 100-42-5)
| Risk Codes | R10 - Flammable R20 - Ua phem los ntawm kev nqus pa R36/38 - Kab mob rau qhov muag thiab tawv nqaij. R40 - Cov pov thawj txwv ntawm cov nyhuv carcinogenic R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R39/23/24/25 - R23/24/25 – Toxic los ntawm inhalation, nyob rau hauv kev sib cuag nrog daim tawv nqaij thiab yog hais tias nqos. R11 - Cov nplaim hluav taws kub heev R48/20 - R63 - Muaj peev xwm tsim kev puas tsuaj rau tus menyuam hauv plab |
| Kev nyab xeeb piav qhia | S23 - Tsis txhob ua pa. S36 - Hnav khaub ncaws tiv thaiv zoo. 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. 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.) S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. S7 – Khaws lub thawv kaw kom nruj. S46 - Yog tias nqos tau, nrhiav kev kho mob tam sim ntawd thiab qhia lub thawv lossis daim ntawv lo. |
| UN IDs | UN 2055 3/PG 3 |
| WGK Germany | 2 |
| RTECS | wb 3675000 |
| TSCA | Yog lawm |
| HS Code | 2902 50 00 Nws |
| Hazard Class | 3 |
| Packing Group | III |
| Toxicity | LD50 hauv nas (mg / kg): 660 ± 44.3 ip; 90 ± 5.2 iv |
Taw qhia
Styrene, yog cov kua xim tsis muaj xim nrog cov ntxhiab tsw tshwj xeeb. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm styrene:
Zoo:
1. Lub teeb ntom ntom.
2. Nws yog volatile nyob rau hauv chav tsev kub thiab muaj ib tug tsawg flash point thiab tawg txwv.
3. Nws yog miscible nrog ntau yam organic solvents thiab yog ib qho tseem ceeb heev organic tshuaj.
Siv:
1. Styrene yog ib qho tseem ceeb ntawm cov khoom siv raw, feem ntau siv rau hauv cov khoom sib txuas ntawm ntau cov yas, hluavtaws roj hmab thiab fibers.
2. Styrene tuaj yeem siv los ua cov khoom siv hluavtaws xws li polystyrene (PS), polystyrene roj hmab (SBR) thiab acrylonitrile-styrene copolymer.
3. Nws kuj tseem siv tau los tsim cov khoom siv tshuaj xws li tsw thiab lubricating roj.
Txoj kev:
1. Styrene tuaj yeem tau los ntawm dehydrogenation los ntawm cua sov thiab pressurizing ethylene molecules.
2. Styrene thiab hydrogen kuj tuaj yeem tau los ntawm cua sov thiab tawg ethylbenzene.
Cov ntaub ntawv kev nyab xeeb:
1. Styrene yog flammable thiab yuav tsum tau tiv thaiv los ntawm ignition thiab kub kub.
2. Kev sib cuag nrog daim tawv nqaij yuav ua rau khaus thiab ua xua, thiab yuav tsum tau ceev faj kom tsim nyog.
3. Lub sij hawm ntev los yog loj heev tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv, nrog rau kev puas tsuaj rau lub hauv paus paj hlwb, daim siab, thiab ob lub raum.
4. Ua tib zoo saib xyuas qhov chaw ua pa thaum siv, thiab tsis txhob nqus los yog nqus tau.
5. Kev pov tseg pov tseg yuav tsum ua raws li cov kev cai thiab cov cai, thiab yuav tsum tsis txhob muab pov tseg lossis tso tawm raws li qhov xav tau.
