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| | 2,3,5,6-Tetrachlorophenol Basic information |
| Product Name: | 2,3,5,6-Tetrachlorophenol | | Synonyms: | 2,3,5,6-TETRACHLOROPHENOL, 1X1ML, MEOH 2 000UG/ML;2,3,5,6-TETRACHLOROPHENOL PESTANAL, 10 M;2,3,5,6-TETRACHLOROPHENOL, 50 MG, NEAT;2,3,5,6-tetrachlorophenate;2,3,5,6-TCP;2,3,5,6-TECP;2.3.5.6-Tetrachlorophenol 50mg [935-95-5];Fourchlorophenol | | CAS: | 935-95-5 | | MF: | C6H2Cl4O | | MW: | 231.89 | | EINECS: | 213-310-8 | | Product Categories: | PhenolsInternational Standards;Canada;Chemical Class;ChloroAnalytical Standards;Halogenated;Single Component Standards for MISA AnalysesVolatiles/ Semivolatiles;T-ZAlphabetic;Alpha sort;Pesticides&Metabolites;Q-ZAlphabetic;TA - TE;PhenolsVolatiles/ Semivolatiles | | Mol File: | 935-95-5.mol |  |
| | 2,3,5,6-Tetrachlorophenol Chemical Properties |
| Melting point | 115-116℃ (isooctane ) | | Boiling point | 331.59°C (rough estimate) | | density | 1.6 g/cm3 (60℃) | | refractive index | 1.5133 (estimate) | | Fp | 11 °C | | storage temp. | APPROX 4°C | | solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly) | | pka | 5.09±0.20(Predicted) | | form | Crystal | | color | Brown | | Odor | Characteristic odor | | Water Solubility | 0.1g/L(25 ºC) | | BRN | 2049586 | | Henry's Law Constant | 4.3×100 mol/(m3Pa) at 25℃, Mackay et al. (2006) | | Major Application | environmental | | InChI | 1S/C6H2Cl4O/c7-2-1-3(8)5(10)6(11)4(2)9/h1,11H | | InChIKey | KEWNKZNZRIAIAK-UHFFFAOYSA-N | | SMILES | Oc1c(Cl)c(Cl)cc(Cl)c1Cl | | CAS DataBase Reference | 935-95-5(CAS DataBase Reference) | | EPA Substance Registry System | 2,3,5,6-Tetrachlorophenol (935-95-5) |
| | 2,3,5,6-Tetrachlorophenol Usage And Synthesis |
| Chemical Properties | Brown solid; phenol odor. Soluble in sodium hydroxide
solutions and most organic solvents; insoluble
in water. | | Uses | Fungicide, wood preservative. | | Production Methods | Chlorophenols are generally prepared by the chlorination of
phenol. There are other routes of synthesis as through diazotizing
p-chloroaniline or dechlorinating (by alkaline hydrolysis)
1,2,4,5-tetrachlorobenzene to yield 2,4,5-trichlorophenol
(TCP). Polychlorinated dibenzo-p-dioxins can be
formedduringthemanufacturingprocess of the chlorophenols.
The amount formed depends on temperature and pressure
process variability during production. The more
notable toxic dioxin, 2,3,7,8-tetrachlorodibenzo-p-dioxin
(2,3,7,8-TCDD), is formed during the production of 2,4,5-
TCP. Laboratory reference standards of 2,3,7,8-TCDD are
prepared by heating 2,4,5-TCP under alkaline conditions.
All technical and formulated products containing 2,4,5-TCP
are expected to be contaminated to varying degrees by this
2,3,7,8-TCDD by-product of the manufacturing process. | | Definition | ChEBI: The 2,3,5,6-isomer of tetrachlorophenol | | General Description | Leaflets (from ligroin) or light beige powder. | | Air & Water Reactions | Insoluble in water. | | Reactivity Profile | 2,3,5,6-TETRACHLOROPHENOL is incompatible with acid chlorides, acid anhydrides and oxidizing agents. . | | Hazard | Toxic by ingestion and inhalation, strong
irritant. | | Fire Hazard | Flash point data for 2,3,5,6-TETRACHLOROPHENOL are not available. 2,3,5,6-TETRACHLOROPHENOL is probably combustible. | | Carcinogenicity | There was no evidence of carcinogenic
activity of 2,4-dichlorophenol in F344/N rats or
B6C3F1 mice from the NTP bioassay program, but
2,4,6-trichlorophenol was reported to be carcinogenic in both
species. | | Purification Methods | Crystallise the phenol from pet ethers. The benzoate has m 136o (from EtOH). [Beilstein 6 II 182, 6 III 730, 6 IV 1025.] |
| | 2,3,5,6-Tetrachlorophenol Preparation Products And Raw materials |
| Raw materials | Phosphinic acid, diphenyl-, 2,3,5,6-tetrachlorophenyl ester (9CI)-->2,3,5,6-Tetrachloroaniline-->2,3,4,5-Tetrachlorophenol-->2,3,4,6-Tetrachlorophenol-->Tecnazene-->2,3,5,6-Tetrachloroanisole-->Pentachlorophenol-->2,4,5-Trichlorophenol | | Preparation Products | 2,3,6-trichlorophenol-->3,4,5-Trichlorophenol |
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