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Name	1,2,4-TRICHLOROBENZENE	EINECS	204-428-0
CAS No.	120-82-1	Density	1.448 g/cm³
PSA	0.00000	LogP	3.64680
Solubility	Insoluble in water	Melting Point	16 °C(lit.)
Formula	C₆H₃Cl₃	Boiling Point	211.4 °C at 760 mmHg
Molecular Weight	181.449	Flash Point	126.7 °C
Transport Information	UN 2321 6.1/PG 3	Appearance	colorless liquid
Safety	23-37/39-60-61-45-36/37-16	Risk Codes	22-38-50/53-52/53-39/23/24/25-23/24/25-11
Molecular Structure		Hazard Symbols	Xn, N, Xi, T, F
Synonyms	1,2,4-Trichlorobenzol;1,2,5-Trichlorobenzene;1,3,4-Trichlorobenzene;HostetexL-PEC;NSC 406697;unsym-Trichlorobenzene;	Article Data	140

1,2,4-TRICHLOROBENZENE Synthetic route

: 634-90-2
1,2,3,5-tetrachlorobenzene

A: 108-70-3
1,3,5-trichlorobenzene

B: 120-82-1
1,2,4-Trichlorobenzene

Conditions

Conditions	Yield
With radical anion of p,p'-di-tert-butylbiphenyl In tetrahydrofuran at -25℃; Irradiation;	A 2.8% B 97.2%

: 2,5-dichloro-benzenediazonium; tetrachloro cuprate(II)

: 120-82-1
1,2,4-Trichlorobenzene

Conditions

Conditions	Yield
In dimethyl sulfoxide Ambient temperature;	97%

: 2,4-dichloro-benzenediazonium; tetrachloro cuprate(II)

: 120-82-1
1,2,4-Trichlorobenzene

Conditions

Conditions	Yield
In dimethyl sulfoxide Ambient temperature;	93%

: 58-89-9
LINDANE

A: 108-70-3
1,3,5-trichlorobenzene

B: 120-82-1
1,2,4-Trichlorobenzene

C: 87-61-6
1,2,3-trichlorobenzene

Conditions

Conditions	Yield
With ammonia at 25℃; Product distribution; Further Variations:; Reagents; Dehalogenation;	A 5% B 87% C 8%
at 25℃; pH=8.32; Kinetics; Product distribution; Further Variations:; pH-values;
With (5,10,15,20-tetrakis(pentafluorophenyl)porphyrinato)iron(III) chloride; tetrabutylammonium perchlorate In N,N-dimethyl-formamide for 4h; Electrolysis;

: 610-40-2
3,4-dinitro-chlorobenzene

: 120-82-1
1,2,4-Trichlorobenzene

Conditions

Conditions	Yield
With Dichlorophenylphosphine In various solvent(s) at 170℃; for 5h;	86%

: 95-94-3
1,2,4,5-tetrachlorobenzene

A: 106-46-7
para-dichlorobenzene

B: 95-50-1
1,2-dichloro-benzene

C: 541-73-1
1,3-Dichlorobenzene

D: 120-82-1
1,2,4-Trichlorobenzene

Conditions

Conditions	Yield
With carbon dioxide; tetrabutylammomium bromide In N,N-dimethyl-formamide at -5 - 0℃; Dehalogenation; Electrochemical reaction; Further byproducts given;	A 9% B 1% C 2% D 8%
With [2,2]bipyridinyl; nickel dichloride; zinc In water; N,N-dimethyl-formamide at 80℃; for 6h; Title compound not separated from byproducts;	A 15.2 % Spectr. B 5.8 % Spectr. C 3.9 % Spectr. D 66.0 % Spectr.

: 110-86-1
pyridine

: 319-84-6
alpha-hexachlorocyclohexane

A: 108-70-3
1,3,5-trichlorobenzene

B: 120-82-1
1,2,4-Trichlorobenzene

C: 87-61-6
1,2,3-trichlorobenzene

: 91-22-5
quinoline

: 319-84-6
alpha-hexachlorocyclohexane

A: 108-70-3
1,3,5-trichlorobenzene

B: 120-82-1
1,2,4-Trichlorobenzene

C: 87-61-6
1,2,3-trichlorobenzene

Conditions

Conditions	Yield
at 105 - 110℃;

: 95-82-9
2,5 dichloroaniline

: 120-82-1
1,2,4-Trichlorobenzene

Conditions

Conditions	Yield
Diazotization;

: 64-17-5
ethanol

: 319-86-8
delta-lindane

: furan-2,3,5(4H)-trione pyridine (1:1)

A: 108-70-3
1,3,5-trichlorobenzene

B: 120-82-1
1,2,4-Trichlorobenzene

C: 87-61-6
1,2,3-trichlorobenzene

Conditions

Conditions	Yield
Product distribution;

...Expand

1,2,4-TRICHLOROBENZENE Chemical Properties

Molecular Formula: C₆H₃Cl₃

Formula Weight: 181.45
mp : 16 ^°C(lit.)
bp : 214 ^°C(lit.)
density : 1.454 g/mL at 25 ^°C(lit.)
Fp : >230 ^°F
Flash point : 110 ^°C
vapor density : >6 (vs air)
vapor pressure : 1 mm Hg ( 40 ^°C)
refractive index : n20/D 1.571(lit.)
storage temp. : 0-6^°C
Water Solubility : INSOLUBLE
Appearance of 1,2,4-TRICHLOROBENZENE (120-82-1) : Colorless liquid

1,2,4-TRICHLOROBENZENE Uses

1,2,4-TRICHLOROBENZENE (120-82-1) is an organic compound used as a solvent, and is one of the best known solvents used to dissolve fullerenes and pentacene. It can also be used as raw materials of pharmaceuticals, dyes and pesticide, as well as extensive use of high boiling point solvents.

1,2,4-TRICHLOROBENZENE Toxicity Data With Reference

1.	skn-rbt 1950 mg/13W-I MOD	AEHLAU Archives of Environmental Health. 30 (1975),165.
2.	mnt-mus-ipr 210 mg/kg/24H	MUTAEX Mutagenesis. 2 (1987),111.
3.	orl-rat LD50:756 mg/kg	AOHYA3 Annals of Occupational Hygiene. 12 (1969),209.
4.	orl-mus LD50:300 mg/kg	NAIZAM Nara Igaku Zasshi. Journal of the Nara Medical Association. 29 (1978),569.
5.	ipr-mus LD50:1223 mg/kg	MUTAEX Mutagenesis. 2 (1987),111.

1,2,4-TRICHLOROBENZENE Consensus Reports

Community Right-To-Know List. Reported in EPA TSCA Inventory.

1,2,4-TRICHLOROBENZENE Safety Profile

Hazard Codes : Xn,N,Xi,T,F (Harmful; Dangerous for the environment; Irritant; Toxic; Highly Flammable)
Risk Statements : 22-38-50/53-52/53-39/23/24/25-23/24/25-11
Safety Statements : 23-37/39-60-61-45-36/37-16
RIDADR : UN 2321 6.1/PG 3
WGK Germany : 3
RTECS : DC2100000
Hazard Note : Irritant
HazardClass : 6.1
PackingGroup : III
HS Code : 29036990
Poison by ingestion. Moderately toxic by intraperitoneal route. An experimental teratogen. Experimental reproductive effects. Mutation data reported. A skin irritant. Combustible when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, use water, foam, CO₂, dry chemical. When heated to decomposition it emits toxic fumes of Cl⁻. See also CHLORINATED HYDROCARBONS, AROMATIC.

1,2,4-TRICHLOROBENZENE Standards and Recommendations

OSHA PEL: CL 5 ppm
ACGIH TLV: CL 5 ppm
DFG MAK: Confirmed Animal Carcinogen with Unknown Relevance to Humans

1,2,4-TRICHLOROBENZENE Analytical Methods

For occupational chemical analysis use NIOSH: Polychlorobenzenes, 5517.

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