4-Chloroacetophenone CAS 99-91-2
Ubungozi Nokuphepha
Amakhodi Engozi | U-R22 – Kuyingozi uma ugwinywe R26 – Kunobuthi Kakhulu ngokuhogela R37/38 – Ukucasula uhlelo lokuphefumula kanye nesikhumba. R41 – Ingozi yokulimala okubi emehlweni R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. R36/37 – Ukucasula amehlo kanye nesistimu yokuphefumula. |
Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. I-S28 – Ngemva kokuxhumana nesikhumba, geza ngokushesha ngensipho eningi. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. S45 – Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.) I-S28A - S36 – Gqoka izingubo ezifanele zokuzivikela. |
Ama-ID e-UN | UN 3416 6.1/PG 2 |
I-WGK Germany | 3 |
I-RTECS | KM5600000 |
I-TSCA | Yebo |
Ikhodi ye-HS | 29147090 |
I-Hazard Class | 6.1 |
Iqembu Lokupakisha | II |
99-91-2 - Imvelo
Vula Idatha Eqinisekisiwe Yedatha
uketshezi olumhlophe ekamelweni lokushisa. Iphoyinti elincibilikayo 20~21 ℃, iphoyinti elibilayo 237 ℃, ukuminyana okuhlobene 1. 1922(20 ℃), inkomba ye-refractive 1.555, iphoyinti elikhanyayo 90 ℃. Ayincibiliki emanzini, incibilika kuzincibilikisi zemvelo.
99-91-2 - Indlela Yokulungiselela
Vula Idatha Eqinisekisiwe Yedatha
kusukela ekujikeni kwe-chlorobenzene nge-acetic anhydride phambi kwe-aluminium trichloride.
99-91-2 - Sebenzisa
Vula Idatha Eqinisekisiwe Yedatha
Lo mkhiqizo usetshenziselwa ukuhlanganiswa kwe-Mandelic Acid, i-fluorescent whitening agent AD namanye amakhemikhali amahle.
Sebenzisa | Lo mkhiqizo usetshenziselwa ukuhlanganiswa kwe-Mandelic Acid, i-fluorescent whitening agent AD namanye amakhemikhali amahle. esetshenziswa njengezinto zokusetshenziswa zokukhanya kwe-fluorescent, imithi kanye neziphakathi |
indlela yokukhiqiza | kusukela ekuphenduleni kwe-chlorobenzene ne-acetic anhydride: i-anhydrous aluminium chloride, i-anhydrous carbon disulfide kanye nokushisa kwe-chlorobenzene eyomile ndawonye, ngemva kokunyakaziswa, i-acetic anhydride yehliswa kancane kancane engxubeni ngesikhathi sokubilisa kancane. Ngemuva kokwengeza, ingxube yanyakaziswa futhi yahlungwa kabusha ku-1H ukuze ibuyise i-carbon disulfide. Uma i-reactant ipholile ekamelweni lokushisa futhi ifudumala, kancane kancane uthele eqhweni elichotshoziwe eliqukethe i-hydrochloric acid ngaphansi kokugqugquzela, futhi i-stratification kufanele icace. Uma kungacacile, inani elincane le-hydrochloric acid kufanele lengezwe. Ngemva kokuthela inani elincane le-benzene kulesi sixazululo, ungqimba lwamafutha lwakhishwa, futhi ungqimba lwamanzi lwakhishwa kanye nge-benzene futhi. I-extract ihlanganiswe nesendlalelo samafutha, igeze nge-15% ye-sodium hydroxide ukuze isuse i-acidity, bese ihlanzwa ngamanzi kuze kube yilapho ingathathi hlangothi futhi isomile, ngemva kokukhishwa kwe-distillation ngaphansi kwengcindezi encishisiwe, izingxenyana ezingcolile ziqoqwe futhi ziqandiswe amahora angu-48. Utshwala kamama bahlukaniswa futhi amakristalu ancibilikiswa ukuze abe umkhiqizo ophelile. Isivuno saba ngu-83.1%. |
isigaba | uketshezi oluvuthayo |
Bhala umyalezo wakho lapha futhi usithumelele wona