4-Chloroacetophenone CAS 99-91-2

Chemical Property:

Molecular Formula	C8H7CLO
Molar Mass	154.59 Nws
Qhov ntom	1.192 g / mL ntawm 25 ° C (lit.)
Melting Point	14-18 ° C (lit.)
Boling Point	232 ° C (lit.)
Flash Point	194 ° F
Dej Solubility	111 mg / L (25 ºC)
Solubility	111mg / l (slow decomposition)
Vapor Siab	8 hli Hg (90 ° C)
Qhov tshwm sim	Ua kua tom qab melting
Xim	Ntshiab xim tsis muaj xim rau daj
Merck	14, 2116 ib
BRN	386014 ib
Kev cia khoom	Muab kaw rau hauv qhuav, Chav Kub
Refractive Index	n20/D 1.554 (lit.)
Physical thiab Chemical Properties	Cov kua dawb ntawm chav sov. Melting point 20-21 ℃, boiling point 237 ℃, 106 ℃ (1.33kPa), 99 ℃ (0.93kPa), txheeb ze ntom ntom 1.1922 (20 ℃), refractive index 1.5550, flash point 90 ℃. Insoluble hauv dej, soluble hauv organic solvents.
Siv	Siv ua fluorescent whitening agent, kws tshuaj thiab cov khoom siv nruab nrab

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Risk thiab Safety

Risk Codes	R22 - Ua phem yog tias nqos R26 - Mob heev los ntawm kev nqus pa R37/38 - Kab mob ua pa thiab tawv nqaij. R41 - Riam phom loj rau qhov muag R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R36/37 - Kab mob rau qhov muag thiab ua pa.
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. S28 - Tom qab sib cuag nrog daim tawv nqaij, ntxuav tam sim nrog xab npum-suds ntau. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. 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 los tau.) S28A - S36 - Hnav khaub ncaws tiv thaiv zoo.
UN IDs	UN 3416 6.1/PG 2
WGK Germany	3
RTECS	KM5600000
TSCA	Yog lawm
HS Code	29147090 ib
Hazard Class	6.1
Packing Group	II

99-91-2 - Xwm

Qhib Cov Ntaub Ntawv Pov Thawj Cov Ntaub Ntawv

kua dawb ntawm chav tsev kub. Melting point 20 ~ 21 ℃, boiling point 237 ℃, txheeb ze ntom ntom 1. 1922 (20 ℃), refractive index 1.555, flash point 90 ℃. Insoluble hauv dej, soluble hauv organic solvents.

99-91-2 - Txoj Kev Npaj

Qhib Cov Ntaub Ntawv Pov Thawj Cov Ntaub Ntawv

los ntawm cov condensation ntawm chlorobenzene nrog acetic anhydride nyob rau hauv lub xub ntiag ntawm txhuas trichloride.

99-91-2 - Siv

Qhib Cov Ntaub Ntawv Pov Thawj Cov Ntaub Ntawv

Cov khoom no yog siv rau kev sib txuas ntawm Mandelic Acid, fluorescent whitening agent AD thiab lwm yam tshuaj zoo.

Siv	Cov khoom no yog siv rau kev sib txuas ntawm Mandelic Acid, fluorescent whitening agent AD thiab lwm yam tshuaj zoo. siv los ua raw khoom rau fluorescent brighteners, kws tshuaj thiab intermediates
txoj kev tsim khoom	los ntawm cov tshuaj tiv thaiv ntawm chlorobenzene thiab acetic anhydride: anhydrous aluminium chloride, anhydrous carbon disulfide thiab qhuav chlorobenzene cua sov ua ke, tom qab nplawm, acetic anhydride tau maj mam poob rau hauv cov sib tov thaum lub sij hawm boiling me ntsis. Tom qab ntxiv, qhov sib tov tau nplawm thiab refluxed rau 1H kom rov qab tau cov pa roj carbon disulfide. Thaum cov reactant txias rau chav tsev kub thiab sov, maj mam ncuav rau hauv cov dej khov crushed uas muaj hydrochloric acid nyob rau hauv stirring, thiab lub stratification yuav tsum tau meej. Yog tias nws tsis meej, me me ntawm hydrochloric acid yuav tsum tau ntxiv. Tom qab nchuav me me ntawm benzene rau hauv cov tshuaj no, cov roj txheej tau muab rho tawm, thiab cov txheej dej tau muab rho tawm ib zaug nrog benzene dua. Cov extract tau ua ke nrog cov roj txheej, ntxuav nrog li 15% sodium hydroxide kom tshem tawm cov acidity, ces ntxuav nrog dej kom txog thaum nruab nrab thiab qhuav, tom qab distillation nyob rau hauv lub siab txo, cov crude feem tau sau thiab khov rau 48h. Cov cawv niam tau muab sib cais thiab cov muaju tau yaj los ua cov khoom tiav. Cov txiaj ntsig yog 83.1%.
qeb	flammable kua