Tom ntej: Benzoyl Chloride CAS 98-88-4
Risk thiab Safety
| Hazard Cov Cim | C - Corrosive |
| Risk Codes | R34 - Ua rau kub hnyiab R43 - Tej zaum yuav ua rau mob ntawm daim tawv nqaij R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. |
| 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. 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.) S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. |
| UN IDs | UN 1736 8/PG 2 |
| WGK Germany | 1 |
| RTECS | DM6600000 |
| TSCA | Yog lawm |
| HS Code | 29310095 ib |
| Kev Ceeb Toom | Corrosive |
| Hazard Class | 8 |
| Packing Group | II |
| Taw qhia | benzoyl chloride (CAS98-88-4 ib) kuj hu ua benzoyl chloride, benzoyl chloride, belongs rau ib hom kua qaub chloride. Ntshiab xim tsis muaj pob tshab flammable kua, raug rau huab cua pa luam yeeb. Cov khoom lag luam nrog lub teeb daj, nrog cov ntxhiab tsw muaj zog. Vapor ntawm lub qhov muag mucosa, daim tawv nqaij thiab ua pa ib ntsuj av tau muaj zog stimulating nyhuv, los ntawm stimulating lub qhov muag mucosa thiab kua muag. Benzoyl chloride yog ib qho tseem ceeb nruab nrab rau kev npaj dyes, fragrances, organic peroxides, tshuaj thiab resins. Nws kuj tau siv rau hauv kev yees duab thiab kev tsim cov tannins, thiab tau siv los ua cov roj stimulant hauv tshuaj tua rog. Daim duab 1 yog cov qauv qauv ntawm benzoyl chloride |
| txoj kev npaj | Hauv chav kuaj, benzoyl chloride tuaj yeem tau txais los ntawm distilling benzoic acid thiab phosphorus pentachloride nyob rau hauv cov xwm txheej tsis muaj dej. Txoj kev npaj ua lag luam tuaj yeem tau txais los ntawm kev siv thionyl chloride thiab benzaldehyde chloride. |
| qeb phom sij | Cov phom sij rau benzoyl chloride: 8 |
| Siv | benzoyl chloride yog ib qho nruab nrab ntawm cov tshuaj tua kab mob oxazinone, thiab tseem yog ib qho nruab nrab ntawm cov tshuaj tua kab benzenecapid, hydrazine inhibitor. benzoyl chloride yog siv los ua raw khoom rau organic synthesis, dyes thiab tshuaj, thiab raws li ib tug pib, dibenzoyl peroxide, tert-butyl peroxide, tshuaj tua kab, thiab lwm yam. Nyob rau hauv cov nqe lus ntawm cov tshuaj tua kab, yog ib yam tshiab ntawm inducible insecticide isoxazole thiophos (isoxathon. , Karphos) intermediates. Nws tseem yog ib qho tseem ceeb benzoylation thiab benzylation reagent. Feem ntau ntawm benzoyl chloride yog siv los tsim benzoyl peroxide, ua raws li kev tsim cov benzophenone, benzyl benzoate, benzyl cellulose thiab benzamide thiab lwm yam tseem ceeb tshuaj raw khoom, benzoyl peroxide rau lub polymerization pib ntawm yas monomer, polyester, epoxy, catalyst rau acrylic resin. ntau lawm, tus kheej-coagulant rau iav fiber ntau cov khoom, crosslinking tus neeg saib xyuas rau silicone fluororubber, roj refining, hmoov bleaching, fiber ntau decolorization, thiab lwm yam. Tsis tas li ntawd, benzoic acid yuav reacted nrog benzoyl chloride los tsim benzoic anhydride. Kev siv lub ntsiab ntawm benzoic anhydride yog ua tus neeg sawv cev acylating, ua ib feem ntawm cov tshuaj bleaching thiab flux, thiab tseem nyob rau hauv kev npaj ntawm benzoyl peroxide. siv los ua cov tshuaj analytical reagents, kuj siv rau hauv txuj lom, organic synthesis |
| txoj kev tsim khoom | 1. Toluene txoj kev raw cov ntaub ntawv toluene thiab chlorine nyob rau hauv lub teeb nyob rau hauv cov xwm txheej ntawm cov tshuaj tiv thaiv, sab saw chlorination los tsim α-trichlorotoluene, lub tom kawg nyob rau hauv acidic nruab nrab hydrolysis los tsim benzoyl chloride, thiab tso tawm ntawm hydrogen chloride gas (kev tsim cov dej nqus. ntawm HCl gas). 2. Benzoic acid thiab phosgene cov tshuaj tiv thaiv. Cov benzoic acid muab tso rau hauv lub lauj kaub photochemical, rhuab thiab yaj, thiab phosgene yog qhia ntawm 140-150 ℃. Cov tshuaj tiv thaiv tus Tsov tus tw muaj hydrogen chloride thiab unreacted phosgene, uas yog kho nrog alkali thiab vented, qhov kub ntawm qhov kawg ntawm cov tshuaj tiv thaiv yog -2-3 ° C, thiab cov khoom tau distilled nyob rau hauv lub siab txo tom qab lub roj tshem tawm ua hauj lwm. Cov khoom lag luam yog cov kua dej daj daj. Purity ≥ 98%. Cov khoom siv raw quota: benzoic acid 920kg / t, phosgene 1100kg / t, dimethylformamide 3kg / t, kua alkali (30%) 900kg / t. Tam sim no dav siv hauv kev lag luam ntawm benzoic acid thiab benzylidene chloride tshuaj tiv thaiv kev npaj. Benzoyl chloride tuaj yeem tau txais los ntawm kev ncaj qha chlorination ntawm benzaldehyde. Muaj ob peb txoj kev npaj. (1) Cov benzoic acid yog rhuab thiab yaj los ntawm phosgene txoj kev, thiab phosgene yog qhia ntawm 140 ~ 150 ℃, thiab ib co phosgene yog nkag mus rau qhov kawg point. Cov phosgene yog tsav los ntawm nitrogen, thiab cov roj av yog absorbed thiab rhuav tshem, cov khoom kawg tau txais los ntawm distillation nyob rau hauv txo siab. (2) phosphorus trichloride txoj kev benzoic acid yaj nyob rau hauv toluene thiab lwm cov kuab tshuaj, Phosphorus trichloride tau ntxiv dropwise, thiab cov tshuaj tiv thaiv yog nqa tawm rau ob peb teev tom qab xa me nyuam rov, cov toluene distilled tawm, thiab ces cov khoom tiav lawm distilled tawm. (3) txoj kev trichloromethylbenzene rau toluene sab saw chlorination, thiab tom qab ntawd hydrolysis khoom. |
Sau koj cov lus ntawm no thiab xa tuaj rau peb
