Chlorobenzotrifluoride

Chlorobenzotrifluoride
Surname	2-chlorobenzotrifluoride	3-chlorobenzotrifluoride	4-chlorobenzotrifluoride
other names	o -chlorobenzotrifluoride 2-chloro-α, α, α-trifluorotoluene o -chloro-α, α, α-trifluorotoluene 1-chloro-2- (trifluoromethyl) benzene	m -chlorobenzotrifluoride 3-chloro-α, α, α-trifluorotoluene m -chloro-α, α, α-trifluorotoluene 1-chloro-3- (trifluoromethyl) benzene	p -chlorobenzotrifluoride 4-chloro-α, α, α-trifluorotoluene p -chloro-α, α, α-trifluorotoluene 1-chloro-4- (trifluoromethyl) benzene
Structural formula
CAS number	88-16-4	98-15-7	98-56-6
ECHA InfoCard	100.001.641	100.002.403	100.002.438
PubChem	6921	7374	7394
Molecular formula	C 7 H 4 ClF 3
Molar mass	180.56 g mol −1
Physical state	liquid
Brief description	yellowish, flammable liquid	colorless, flammable liquid with an aromatic odor
Melting point	−6 ° C	−55.4 ° C	−36 ° C
boiling point	152 ° C	137-138 ° C	139 ° C
density	1.37 g cm −3 (20 ° C)	1.336 g cm −3 (25 ° C)	1.35 g cm −3 (20 ° C)
Vapor pressure	5 hPa (20 ° C)	8.5 hPa (20 ° C)	10.2 hPa (25 ° C)
solubility	practically insoluble in water
GHS labeling	Caution	Caution	Caution
H and P phrases	226-302-315-319-335	226-412	226-317-411
	no EUH phrases	no EUH phrases	no EUH phrases
	210-261-280-301 + 312 302 + 352-305 + 351 + 338	no P-phrases	210-273-280-333 + 313-391-403 + 235
LD 50 oral rat		> 5,000 mg kg −1	> 5,000–13,000 mg kg −1

Chlorobenzotrifluorides are chemical compounds from the group of halogenated benzene derivatives .

Extraction and presentation

Chlorobenzotrifluorides can chlorination of benzotrifluoride obtained and subsequent distillation of the isomer mixture. 4-chlorobenzotrifluoride is also obtained by reacting 4-chlorobenzotrichloride and hydrogen fluoride .

use

Chlorobenzotrifluorides are used as intermediate products in the manufacture of pesticides, dyes and pharmaceuticals (e.g. tetrachlorobenzotrifluoride ). So z. B. 4-chlorobenzotrifluoride for the production of dinitroaniline - herbicides such as trifluralin . 4-chlorobenzotrifluoride is also used as a dielectric liquid and as a solvent.

safety instructions

The vapors of chlorobenzotrifluorides can form an explosive mixture with air when heated above their flash point (40–60 ° C).

Derivatives

• 3-nitro-4-chlorobenzotrifluoride
• 3,5-dinitro-4-chlorobenzotrifluoride
• 3-amino-6-chlorobenzotrifluoride

Individual evidence

1. ↑ ^{a b c d e f g h} Entry for CAS no. 88-16-4 in the GESTIS substance database of the IFA , accessed on December 27, 2019(JavaScript required) .
2. ↑ ^{a b c d e f g h} Entry for CAS no. 98-15-7 in the GESTIS substance database of the IFA , accessed on December 27, 2019(JavaScript required) .
3. ↑ ^{a b c d e f g h} Entry for CAS no. 98-56-6 in the GESTIS substance database of the IFA , accessed on December 27, 2019(JavaScript required) .
4. ↑ Toxicological assessment of m-chlorobenzotrifluoride (PDF) at the professional association raw materials and chemical industry (BG RCI), accessed on August 22, 2012.
5. ↑ ^{a b} Toxicological assessment of p-chlorobenzotrifluoride (PDF) at the professional association raw materials and chemical industry (BG RCI), accessed on August 22, 2012.