| Identification | More | [Name]
1,2,4,5-Tetrachlorobenzene | [CAS]
95-94-3 | [Synonyms]
1,2,4,5-TETRACHLOROBENZENE
1,2,4,5-tcb
1,2,4,5-tetrachlorbenzol
1,2,4,5-tetrachloro-benzen
benzene,1,2,4,5-tetrachloro-
benzenetetrachloride
I,2,4,5-Tetrachlorbenzol
Rcra waste number U207
rcrawastenumberu207
s-Tetrachlorobenzene
Melting point 140.0 to 143.0 deg-C
Purity(GC) min. 99.0 %
1,2,4,5-Tetrachlorobenzne
1,2,4,5-TETRACHLOROBENZENE, 1X1ML, ACN 1 000UG/ML
1,2,4,5-TETRACHLOROBENZENE, 1000MG, NEAT
1,2,4,5-TETRACHLOROBENZENE PESTANAL,250
1,2,4,5-Tetrachlorobenzene,98%
1,2,4,5-tetrachlorobenzene solution
ethenyl trichloride
TETRACHLOROBENZOL | [EINECS(EC#)]
202-466-2 | [Molecular Formula]
C6H2Cl4 | [MDL Number]
MFCD00000549 | [Molecular Weight]
215.89 | [MOL File]
95-94-3.mol |
| Chemical Properties | Back Directory | [Appearance]
white solid | [Melting point ]
139 °C | [Boiling point ]
240-246 °C(lit.) | [density ]
1.858 | [vapor pressure ]
5 at 25 °C (extrapolated, Mackay et al., 1982) | [refractive index ]
1.5348 (estimate) | [Fp ]
>230 °F
| [storage temp. ]
0-6°C | [solubility ]
0.0003g/l | [form ]
Crystalline Solid | [color ]
Light pink to gray | [Stability:]
Stable. Combustible. Incompatible with strong oxidizing agents. Reacts explosively with alkaline methanol solutions. | [Water Solubility ]
insoluble. <0.1 g/100 mL at 21 ºC | [BRN ]
1618315 | [Henry's Law Constant]
0.10 at 20 °C (gas stripping-GC, Oliver, 1985) | [Uses]
Intermediate for herbicides and defoliants,
insecticide, impregnant for moisture resistance,
electrical insulation. | [CAS DataBase Reference]
95-94-3(CAS DataBase Reference) | [NIST Chemistry Reference]
Benzene, 1,2,4,5-tetrachloro-(95-94-3) | [EPA Substance Registry System]
95-94-3(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,T,F | [Risk Statements ]
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R11:Highly Flammable. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S27:Take off immediately all contaminated clothing .
S16:Keep away from sources of ignition-No smoking . | [RIDADR ]
UN 3077 9/PG 3
| [WGK Germany ]
3
| [RTECS ]
DB9450000
| [TSCA ]
Yes | [HazardClass ]
9 | [HS Code ]
29036990 | [Hazardous Substances Data]
95-94-3(Hazardous Substances Data) | [Toxicity]
Acute oral LD50 for rats 1,500 mg/kg, mice 1,035 mg/kg (quoted, RTECS, 1985). |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
PENTACHLOROBENZENE-->1,2,3,5-Tetrachlorobenzene-->Benzene,1,4-dibromo-2,3,5,6-tetrachloro- | [Preparation Products]
2,4,5-Trichlorophenol-->2-(2,4,5-TRICHLOROPHENOXY)PROPIONIC ACID-->2,3,4,5,6-PENTAFLUOROPHENYLACETIC ACID-->2,4,5-Trichlorobenzoic acid-->1,2,4,5-TETRAKIS(TERT-BUTYLTHIO)BENZENE-->1,2,4,5-tetraphenylbenzene-->2,4,5-TRICHLOROBIPHENYL-->1,2,4,5-Benzenetetrathiol-->4H,4'H-OCTAFLUOROBIPHENYL-->2,3,5,6-TETRACHLOROPHENOL-->1,2,4-Triphenylbenzene |
| Hazard Information | Back Directory | [Chemical Properties]
white solid | [Definition]
ChEBI: A tetrachlorobenzene carrying chloro groups at positions 1, 2, 4 and 5. | [Environmental Fate]
Biological. A mixed culture of soil bacteria or a Pseudomonas sp. transformed 1,2,4,5-
tetrachlorobenzene to 2,3,5,6-tetrachlorophenol (Ballschiter and Scholz, 1980). After incubation in
sewage sludge for 32 d under anaerobic conditions, 1,2,4,5-tetrachlorobenzene did not biodegrade
(Kirk et al., 1989).
In an enrichment culture derived from a contaminated site in Bayou d’Inde, LA, 1,2,4,5-
tetrachlorobenzene underwent reductive dechlorination to 1,2,4-trichlorobenzene. The maximum
dechlorination rate, based on the recommended Michaelis-Menten model, was 5.5 nM/d
(Pavlostathis and Prytula, 2000).
Photolytic. Irradiation (λ ≥285 nm) of 1,2,4,5-tetrachlorobenzene (1.1–1.2 mM/L) in an
acetonitrile-water mixture containing acetone (0.553 mM) as a sensitizer gave the following
products (% yield): 1,2,4-trichlorobenzene (25.3), 1,3-dichlorobenzene (8.1), 1,4-dichlorobenzene
(3.6), 2,2′,3,4′,5,5′,6-heptachlorobiphenyl (4.19), four hexachlorobiphenyls (6.78), four pentachlorobiphenyls
(2.33), one tetrachlorobiphenyl (0.32), 2,4,5-trichloroacetophenone, and (2,4,5-
trichlorophenyl)acetonitrile (Choudhry and Hutzinger, 1984). Without acetone, the identified
photolysis products (% yield) included 1,2,4-trichlorobenzene (27.7), 1,3-dichlorobenzene (0.3),
1,4-dichlorobenzene (8.5), pentachlorobenzene (trace), 1,2,3,4-tetrachlorobenzene (0.45), 1,2,3,5-
tetrachlorobenzene (1.11), 2,2′,3,4′,5,5′,6-heptahlorobiphenyl (1.24), three hexachlorobiphenyls
(1.19), and four pentachlorobiphenyls (0.56) (Choudhry and Hutzinger, 1984). The sunlight
irradiation of 1,2,4,5-tetrachlorobenzene (20 g) in a 100-mL borosilicate glass-stoppered Erlenmeyer flask for 28 d yielded 26 ppm heptachlorobiphenyl (Uyeta et al., 1976).
Chemical/Physical. Based on an assumed base-mediated 1% disappearance after 16 d at 85 °C
and pH 9.70 (pH 11.26 at °C), the hydrolysis half-life was estimated to be >900 yr (Ellington et
al., 1988). | [Purification Methods]
Crystallise it from EtOH, ether, *benzene, *benzene/EtOH or carbon disulfide. [Beilstein 5 IV 668.] |
| Spectrum Detail | Back Directory | [Spectrum Detail]
1,2,4,5-Tetrachlorobenzene(95-94-3)MS
1,2,4,5-Tetrachlorobenzene(95-94-3)1HNMR
1,2,4,5-Tetrachlorobenzene(95-94-3)13CNMR
1,2,4,5-Tetrachlorobenzene(95-94-3)IR1
1,2,4,5-Tetrachlorobenzene(95-94-3)IR2
1,2,4,5-Tetrachlorobenzene(95-94-3)IR3
1,2,4,5-Tetrachlorobenzene(95-94-3)Raman
|
| Well-known Reagent Company Product Information | Back Directory | [Acros Organics]
1,2,4,5-Tetrachlorobenzene, 98%(95-94-3) | [Alfa Aesar]
1,2,4,5-Tetrachlorobenzene, 98%(95-94-3) | [Sigma Aldrich]
95-94-3(sigmaaldrich) | [TCI AMERICA]
1,2,4,5-Tetrachlorobenzene,>99.0%(GC)(95-94-3) |
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