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CAS No. ：95-93-2
Homotetramethylene, or 1.2.4.5-tetramethylbenzene, is an organic compound. The raw material is C10 heavy aromatic hydrocarbons, made by distillation, enrichment, crystallization and separation.
It is one of the three isomers of tetramethylbenzene, the remaining two being 1.2.3.4-tetramethylbenzene and 1.2.3.5-tetramethylbenzene. The high melting point of homotetramethylene (79.2°C) reflects the high degree of symmetry of its molecule.
The purity of our homotetramethylbenzene is 95%, 96% and 97% respectively, and the appearance is white crystal.
Application
In industry, it is the precursor of homophthalic dianhydride, which is used in the manufacture of curing agents, adhesives and paints. It is used as a raw material for the manufacture of some engineering plastics (polyimide) and as a cross-linking agent for alkyd resins. It is also a suitable raw material for synthesizing hexamethylbenzene.
| Name | 1,2,4,5-Tetramethylbenzene |
| Synonyms | Durene 2,5-dimethyl-p-xylen 1,2,4,5-Tetramethylbenzene 1,2,4,5-tetramethyl-benzen Durene,1,2,4,5-Tetramethylbenzene 1,2,4,5-TETRAMETHYLBENZENE (DURENE) 1,2,4,5-Tetramethylbenzene (Durene) 1,2,4,5-Tetramethylbenzene,1,2,4,5-Tetramethylbenzene, Durene |
| Molecular Formula | C10H14 |
| Molar Mass | 134.22 |
| Density | 0.838g/mLat 25°C(lit.) |
| Melting Point | 78 °C |
| Boling Point | 196-197 °C |
| Flash Point | 165°F |
| Water Solubility | insoluble |
| Solubility | 0.00348g/l |
| Vapor Presure | 160 mm Hg ( 140 °C) |
| Vapor Density | 4.6 (vs air) |
| Appearance | neat |
| Specific Gravity | 0.838 |
| Color | White to Almost white |
| Merck | 14,3468 |
| BRN | 1903393 |
| Storage Condition | Flammables area |
| Refractive Index | 1.5093 |
| Physical and Chemical Properties | White monoclinic crystal. Melting point 79.2 ℃, boiling point 196.8 ℃, relative density 0.8918, flash point 73 ℃. Soluble in ethanol, ether, benzene, insoluble in water. |
| Use | It is the most ideal raw material for the oxidation of pyromellitic anhydride |
| Risk Codes | R11 – Highly Flammable R53 – May cause long-term adverse effects in the aquatic environment R50 – Very Toxic to aquatic organisms |
| Safety Description | S16 – Keep away from sources of ignition. S61 – Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 1325 4.1/PG 2 |
| WGK Germany | 1 |
| RTECS | DC0500000 |
| TSCA | Yes |
| HS Code | 29029080 |
| Hazard Class | 4.1 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 6700 mg/kg |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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