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| | 1,2,4,5-Tetramethylbenzene Basic information |
| Product Name: | 1,2,4,5-Tetramethylbenzene | | Synonyms: | Zone Refined (nuMber of passes:23);1,2,4,5-TetraMethylbenzene, 99% 100GR;1,2,4,5-TetraMethylbenzene, 99% 500GR;1,2,4,5-Tetramethylbenzoate;2,5-Dimethyl-p-xylene;1,2,4,5-Tetramethylbenzene,98%;1,2,4,5-Tetramethylbenzene Zone Refined;1,2,4,5-TETRAMETHYLBENZENE FOR SYNTHESIS | | CAS: | 95-93-2 | | MF: | C10H14 | | MW: | 134.22 | | EINECS: | 202-465-7 | | Product Categories: | Arenes;Building Blocks;Chemical Synthesis;Organic Building Blocks;Highly Purified Reagents;Other Categories;Zone Refined Products | | Mol File: | 95-93-2.mol |  |
| | 1,2,4,5-Tetramethylbenzene Chemical Properties |
| Melting point | 78 °C | | Boiling point | 196-197 °C | | density | 0.838 g/mL at 25 °C(lit.) | | vapor density | 4.6 (vs air) | | vapor pressure | 160 mm Hg ( 140 °C) | | refractive index | 1.5093 | | Fp | 165 °F | | storage temp. | Flammables area | | solubility | 0.00348g/l | | Specific Gravity | 0.838 | | color | White to Almost white | | Odor | rancid sweet | | Water Solubility | insoluble | | Merck | 14,3468 | | BRN | 1903393 | | Henry's Law Constant | 2.49 at 25 °C (approximate - calculated from water solubility and vapor pressure) | | LogP | 4.000 | | CAS DataBase Reference | 95-93-2(CAS DataBase Reference) | | NIST Chemistry Reference | Benzene, 1,2,4,5-tetramethyl-(95-93-2) | | EPA Substance Registry System | 1,2,4,5-Tetramethylbenzene (95-93-2) |
| Hazard Codes | F,N | | Risk Statements | 11-53-50 | | Safety Statements | 16-61 | | RIDADR | UN 1325 4.1/PG 2 | | WGK Germany | 1 | | RTECS | DC0500000 | | TSCA | Yes | | HazardClass | 4.1 | | PackingGroup | III | | HS Code | 29029080 | | Toxicity | LD50 orally in Rabbit: 6700 mg/kg |
| | 1,2,4,5-Tetramethylbenzene Usage And Synthesis |
| Chemical Properties | white to brown semi-transparent crystals | | Physical properties | Colorless crystals or scales with a camphor-like odor | | Uses | Plasticizers; polymers; fibers; organic synthesis. | | Uses | 1,2,4,5-Tetramethylbenzene is used in method for reducing odor in room in remodeling work by removing causative substances. | | Definition | ChEBI: Durene is a tetramethylbenzene carrying methyl groups at positions 1, 2, 4 and 5. | | General Description | Colorless crystals with a camphor-like odor. | | Air & Water Reactions | Insoluble in water. | | Reactivity Profile | Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as 1,2,4,5-Tetramethylbenzene, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction. | | Purification Methods | Chromatograph durene on alumina, and recrystallise it from aqueous EtOH or *benzene. Zone-refining removes duroaldehydes. Dry it under vacuum. [Yamauchi et al. J Phys Chem 89 4804 1985.] It has also been sublimed in vacuo [Johnston et al. J Am Chem Soc 109 1291 1987]. [Beilstein 5 H 431, 5 I 207, 5 II 329, 5 III 979, 5 IV 1076.] |
| | 1,2,4,5-Tetramethylbenzene Preparation Products And Raw materials |
| Raw materials | Sodium hydroxide-->Methanol-->Aluminium chloride hexahydrate-->Chloromethane-->m-Xylene-->1,2,4-Trimethylbenzene-->tetramethylbenzene-->Ethanone, 1-(2,3,4,6-tetramethylphenyl)--->2,3-DIMETHYL-2-CYCLOPENTEN-1-ONE-->2,3,4-trimethylcyclopent-2-en-1-one-->Pentamethylbenzene | | Preparation Products | Mesitylene-->2,3,5,6-TETRAMETHYLBENZALDEHYDE-->Pyromellitic Dianhydride-->Pyromellitic acid-->1,2,3,4-Tetramethylbenzene-->2,3,5,6-TETRAMETHYLBENZENESULFONYL CHLORIDE-->TETRAMETHYLTEREPHTHALIC ACID-->2,3,5,6-TETRAMETHYL PHENOL-->2,4-DIMETHYLPENTANE |
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