Tom ntej: Benzotrifluoride CAS # 98-08-8
Risk thiab Safety
| Risk Codes | R45 - Tej zaum yuav ua rau mob qog noj ntshav R46 - Tej zaum yuav ua rau muaj kev puas tsuaj ntawm caj ces R11 - Cov nplaim hluav taws kub heev R36/38 - Kab mob rau qhov muag thiab tawv nqaij. R48/23/24/25 - R65 - Ua phem: Tej zaum yuav ua rau lub ntsws puas yog tias nqos 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. 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. R48/20/22 - R40 - Cov pov thawj txwv ntawm cov nyhuv carcinogenic R38 - Irritating rau ntawm daim tawv nqaij R22 - Ua phem yog tias nqos |
| Kev nyab xeeb piav qhia | S53 - Tsis txhob raug - tau txais cov lus qhia tshwj xeeb ua ntej siv. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. 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.) S62 - Yog tias nqos tau, tsis txhob ntuav ntuav; nrhiav kev kho mob tam sim ntawd thiab qhia lub thawv los yog daim ntawv lo. S61 - Tsis txhob tso tawm rau ib puag ncig. Xa mus rau cov lus qhia tshwj xeeb / cov ntaub ntawv kev nyab xeeb. S23 - Tsis txhob ua pa. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. |
| UN IDs | UN 2338 3/PG 2 |
| WGK Germany | 3 |
| RTECS | XT9450000 |
| TSCA | Yog lawm |
| HS Code | 29 0490 |
| Kev Ceeb Toom | Flammable / Corrosive |
| Hazard Class | 3 |
| Packing Group | II |
| Toxicity | LD50 qhov ncauj hauv luav: 15000 mg/kg LD50 dermal Rat > 2000 mg/kg |
Cov ntaub ntawv
| kev npaj | toluene trifluoride yog ib qho organic nruab nrab, uas tuaj yeem tau los ntawm toluene ua raw khoom los ntawm chlorination thiab ces fluorination. Hauv thawj kauj ruam, chlorine, toluene thiab catalyst tau sib xyaw rau cov tshuaj tiv thaiv chlorination; Cov tshuaj tiv thaiv chlorination kub yog 60 ℃ thiab cov tshuaj tiv thaiv siab yog 2Mpa; Hauv qib thib ob, hydrogen fluoride thiab catalyst tau ntxiv rau cov nitrated sib tov hauv thawj kauj ruam rau cov tshuaj fluorination; Cov tshuaj tiv thaiv fluorination kub yog 60 ℃ thiab cov tshuaj tiv thaiv siab yog 2MPa; Hauv qib thib peb, qhov sib tov tom qab qhov tshuaj tiv thaiv fluorination thib ob tau raug kho kho kom tau txais trifluorotoluene. |
| siv | siv: rau kev tsim tshuaj, dyes, thiab siv los kho tus neeg sawv cev, tshuaj tua kab, thiab lwm yam. trifluoromethylbenzene yog ib qho tseem ceeb nruab nrab ntawm fluorine chemistry, uas tuaj yeem siv los npaj cov tshuaj tua kab mob xws li fluuron, fluralone, thiab pyrifluramine. Nws kuj yog ib qho tseem ceeb nruab nrab ntawm cov tshuaj. intermediate ntawm tshuaj thiab dye, hnyav. Thiab siv los ua tus neeg sawv cev kho thiab tsim cov roj insulating. intermediates rau organic synthesis thiab dyes, tshuaj, curing agents, accelerators, thiab kev tsim cov roj insulating. Nws tuaj yeem siv rau kev txiav txim siab ntawm tus nqi calorific ntawm cov roj, kev npaj cov hmoov hluav taws tua hluav taws, thiab cov khoom siv yas photodegradable. |
| txoj kev tsim khoom | 1. Muab los ntawm kev sib cuam tshuam ntawm ω,ω,ω-trichlorotoluene nrog anhydrous hydrogen fluoride. Cov molar piv ntawm ω,ω,ω-trichlorotoluene rau anhydrous hydrogen fluoride yog 1:3.88, thiab cov tshuaj tiv thaiv yog nqa tawm ntawm qhov kub ntawm 80-104 ° C. Nyob rau hauv ib tug siab ntawm 1.67-1.77MPA rau 2-3 teev. Cov txiaj ntsig yog 72.1%. Vim tias tsis muaj hydrogen fluoride yog pheej yig thiab yooj yim kom tau, cov cuab yeej siv tau yooj yim los daws, tsis muaj steel tshwj xeeb, tus nqi qis, tsim rau industrialization. Muab los ntawm kev sib cuam tshuam ntawm ω,ω,ω-toluene trifluoride nrog antimony trifluoride. Lub ω ω ω trifluorotoluene thiab antimony trifluoride yog rhuab thiab distilled nyob rau hauv ib lub lauj kaub cov tshuaj tiv thaiv, thiab cov distillate yog crude trifluoromethylbenzene. Cov sib tov yog ntxuav nrog 5% hydrochloric acid, ua raws li 5% sodium hydroxide tov, thiab rhuab rau distillation kom sau 80-105 ° C feem. Cov txheej txheej sab saud tau muab cais tawm, thiab cov txheej txheem qis tau qhuav nrog anhydrous calcium chloride thiab lim kom tau txais trifluoromethylbenzene. Cov txiaj ntsig yog 75%. Txoj kev no siv cov tshuaj antimonide, tus nqi siab dua, feem ntau tsuas yog nyob rau hauv lub chaw kuaj mob siv yooj yim dua. Txoj kev npaj yog siv toluene ua raw khoom, thawj zaug siv cov roj chlorine nyob rau hauv lub xub ntiag ntawm catalyst sab saw chlorination kom tau α, α, α-trichlorotoluene, thiab tom qab ntawd hnov mob nrog hydrogen fluoride kom tau cov khoom. |
Sau koj cov lus ntawm no thiab xa tuaj rau peb
