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1,2,3,5-Tetrachlorobenzene

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1,2,3,5-Tetrachlorobenzene Basic information

Product Name:
1,2,3,5-Tetrachlorobenzene
CAS:
634-90-2
MF:
C6H2Cl4
MW:
215.89
EINECS:
211-217-7
Mol File:
634-90-2.mol
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1,2,3,5-Tetrachlorobenzene Chemical Properties

Melting point:
54.5°C
Boiling point:
246°C
Density 
1.5578 (estimate)
vapor pressure 
0.07 at 25 °C (extrapolated, Mackay et al., 1982)
refractive index 
1.5348 (estimate)
Flash point:
113 °C
storage temp. 
APPROX 4°C
solubility 
Soluble in alcohol, benzene, ether, and ligroin (Weast, 1986)
form 
neat
Water Solubility 
4.016mg/L(25 ºC)
BRN 
1618864
Henry's Law Constant
58.0 at 25 °C (gas stripping-GC, Shiu and Mackay, 1997)
CAS DataBase Reference
634-90-2(CAS DataBase Reference)
NIST Chemistry Reference
Benzene, 1,2,3,5-tetrachloro-(634-90-2)
EPA Substance Registry System
1,2,3,5-Tetrachlorobenzene (634-90-2)
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Safety Information

Hazard Codes 
Xn,T,F
Risk Statements 
22-39/23/24/25-23/24/25-11
Safety Statements 
22-24/25-45-36/37-16-7
RIDADR 
UN 1230 3/PG 2
WGK Germany 
3
RTECS 
DB9445000
Hazardous Substances Data
634-90-2(Hazardous Substances Data)
Toxicity
Acute oral LD50 for rats 1,727 mg/kg (quoted, RTECS, 1985).

MSDS

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1,2,3,5-Tetrachlorobenzene Usage And Synthesis

Definition

ChEBI: A tetrachlorobenzene carrying chloro groups at positions 1, 2, 3 and 5.

General Description

White crystals or off-white solid.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Simple aromatic halogenated organic compounds, such as 1,2,3,5-Tetrachlorobenzene , are very unreactive. Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms. Materials in this group may be incompatible with strong oxidizing and reducing agents. Also, they may be incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides. 1,2,3,5-Tetrachlorobenzene may react with oxidizers. .

Health Hazard

ACUTE/CHRONIC HAZARDS: 1,2,3,5-Tetrachlorobenzene may cause irritation on contact.

Fire Hazard

1,2,3,5-Tetrachlorobenzene is probably combustible.

Environmental Fate

Biological. A mixed culture of soil bacteria or a Pseudomonas sp. transformed 1,2,3,5-tetrachlorobenzene to 2,3,4,6-tetrachlorophenol (Ballschiter and Scholz, 1980). The half-life of 1,2,3,5- tetrachlorobenzene in an anaerobic enrichment culture was 1.8 d (Beurskens et al., 1993).
In an enrichment culture derived from a contaminated site in Bayou d’Inde, LA, 1,2,3,5- tetrachlorobenzene underwent reductive dechlorination to 1,2,4- and 1,3,5-trichlorobenzene at relative molar yields of 7 and 93%, respectively. The maximum dechlorination rate, based on the recommended Michaelis-Menten model, was 94 nM/d (Pavlostathis and Prytula, 2000).
Photolytic. Irradiation (λ ≥285 nm) of 1,2,3,5-tetrachlorobenzene (1.1–1.2 mM/L) in an acetonitrile-water mixture containing acetone (0.553 mM/L) as a sensitizer gave the following products (% yield): 1,2,3-trichlorobenzene (5.3), 1,2,4-trichlorobenzene (4.9), 1,3,5-trichlorobenzene (49.3), 1,3-dichlorobenzene (1.8), 2,3,4,4′,5,5′,6-heptachlorobiphenyl (1.41), 2,2′,3,4,4′,6,6′- heptachlorobiphenyl (1.10), 2,2′,3,3′,4,5′,6-heptachlorobiphenyl (4.50), four hexachlorobiphenyls (4.69), one pentachlorobiphenyl (0.64), trichloroacetophenone, 1-(trichlorophenyl)-2-propanone, and (trichlorophenyl)acetonitrile (Choudhry and Hutzinger, 1984). Without acetone, the identified photolysis products (% yield) included 1,2,3-trichlorobenzene (trace), 1,2,4-trichlorobenzene (24.3), 1,3,5-trichlorobenzene (11.7), 1,3-dichlorobenzene (0.5), 1,4-dichlorobenzene (3.3), pentachlorobenzene (1.43), 1,2,3,4-tetrachlorobenzene (5.99), two heptachlorobiphenyls (1.40), two hexachlorobiphenyls (<0.01), and one pentachlorobiphenyl (0.75) (Choudhry and Hutzinger, 1984).

Purification Methods

Crystallise it from EtOH. [Beilstein 5 II 157, 5 III 551, 5 IV 668.]

1,2,3,5-Tetrachlorobenzene Preparation Products And Raw materials

Preparation Products

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1,2,3,5-Tetrachlorobenzene SupplierMore

J & K SCIENTIFIC LTD.
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010-82848833- ;010-82848833-
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TCI (Shanghai) Development Co., Ltd.
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Energy Chemical
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Jia Xing Isenchem Co.,Ltd
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0573-85280080-
Email:
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Adamas Reagent, Ltd.
Tel:
400-600-9262
Email:
bxy@titansci.com
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