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mankhwala

4-Chloroacetophenone CAS 99-91-2

Chemical Property:

Molecular Formula C8H7ClO
Misa ya Molar 154.59
Kuchulukana 1.192 g/mL pa 25 °C (kuyatsa)
Melting Point 14-18 °C (kuyatsa)
Boling Point 232 °C (kuyatsa)
Pophulikira 194°F
Kusungunuka kwamadzi 111 mg/L (25 ºC)
Kusungunuka 111mg/l (kuwonongeka pang'onopang'ono)
Kuthamanga kwa Vapor 8 mmHg (90 °C)
Maonekedwe Madzi Pambuyo Kusungunuka
Mtundu Zowoneka bwino zopanda mtundu mpaka zachikasu
Merck 14,2116
Mtengo wa BRN 386014
Mkhalidwe Wosungira Osindikizidwa muuma, Kutentha Kwapachipinda
Refractive Index n20/D 1.554(lit.)
Zakuthupi ndi Zamankhwala Madzi oyera firiji. Malo osungunuka 20-21 ℃, kuwira 237 ℃,106 ℃(1.33kPa), 99 ℃(0.93kPa), kachulukidwe wachibale 1.1922(20 ℃), refractive index 1.5550, flash point 90 ℃. Insoluble m'madzi, sungunuka mu zosungunulira organic.
Gwiritsani ntchito Amagwiritsidwa ntchito ngati fulorosenti whitening wothandizira, mankhwala ndi wapakatikati zopangira

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

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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