4-Chloroacetophenone CAS 99-91-2
Ngozi ndi Chitetezo
Zizindikiro Zowopsa | R22 - Zowopsa ngati zitamezedwa R26 - Ndiwowopsa kwambiri pokoka mpweya R37/38 - Zokwiyitsa dongosolo la kupuma ndi khungu. R41 - Kuopsa kwa kuwonongeka kwakukulu kwa maso R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. R36/37 - Zokhumudwitsa m'maso ndi kupuma. |
Kufotokozera Zachitetezo | S26 - Mukakhudzana ndi maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S28 - Mukakhudza khungu, sambani nthawi yomweyo ndi sopo wambiri. S36/37/39 - Valani zovala zodzitchinjiriza zoyenera, magolovesi ndi chitetezo chamaso / kumaso. S45 - Pakachitika ngozi kapena ngati simukumva bwino, funsani upangiri wachipatala nthawi yomweyo (onetsani chizindikirocho ngati kuli kotheka.) S28A - S36 - Valani zovala zoyenera zodzitetezera. |
Ma ID a UN | UN 3416 6.1/PG 2 |
WGK Germany | 3 |
Mtengo wa RTECS | KM5600000 |
TSCA | Inde |
HS kodi | 29147090 |
Kalasi Yowopsa | 6.1 |
Packing Group | II |
99-91-2 - Chilengedwe
Tsegulani Data Yotsimikizika Yotsimikizika
madzi oyera pa firiji. Malo osungunuka 20 ~ 21 ℃, malo otentha 237 ℃, kachulukidwe wachibale 1. 1922 (20 ℃), refractive index 1.555, flash point 90 ℃. Insoluble m'madzi, sungunuka mu zosungunulira organic.
99-91-2 - Njira Yokonzekera
Tsegulani Data Yotsimikizika Yotsimikizika
kuchokera ku condensation ya chlorobenzene ndi acetic anhydride pamaso pa aluminium trichloride.
99-91-2 - Gwiritsani ntchito
Tsegulani Data Yotsimikizika Yotsimikizika
Izi ntchito synthesis Mandelic Acid, fulorosenti whitening wothandizira AD ndi mankhwala ena abwino.
Gwiritsani ntchito | Izi ntchito synthesis Mandelic Acid, fulorosenti whitening wothandizira AD ndi mankhwala ena abwino. amagwiritsidwa ntchito ngati zipangizo zowunikira fulorosenti, mankhwala ndi intermediates |
njira yopanga | kuchokera ku zomwe chlorobenzene ndi acetic anhydride: anhydrous aluminiyamu kolorayidi, anhydrous carbon disulfide ndi youma chlorobenzene Kutentha pamodzi, pambuyo oyambitsa, acetic anhydride anali pang'onopang'ono anagwetsera mu osakaniza pa nthawi yowira pang'ono. Kuphatikiza apo, osakanizawo adagwedezeka ndikusinthidwanso kwa 1H kuti achire mpweya disulfide. Pamene reactant ndi utakhazikika firiji ndi kutenthedwa, pang'onopang'ono kutsanulira mu wosweka ayezi munali hydrochloric asidi pansi oyambitsa, ndi stratification ayenera bwino. Ngati sizikumveka bwino, pang'ono hydrochloric acid iyenera kuwonjezeredwa. Pambuyo kuthira pang'ono benzene mu njira iyi, wosanjikiza mafuta anatengedwa, ndipo wosanjikiza madzi anatengedwa kamodzi ndi benzene kachiwiri. Tingafinye anali pamodzi ndi wosanjikiza mafuta, kutsukidwa ndi pafupifupi 15% sodium hydroxide kuchotsa acidity, ndiye kutsukidwa ndi madzi mpaka ndale ndi zouma, pambuyo distillation pansi pa kupanikizika yafupika, ndi zosakongola tizigawo ting'onoting'ono anasonkhanitsidwa ndi mazira kwa 48h. Mowa wamayiwo analekanitsidwa ndipo makhiristowo anasungunuka kuti akhale mankhwala omalizidwa. Zokolola zinali 83.1%. |
gulu | madzi oyaka |
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