1,3,5-Trimethylbenzene (Mesitylene) CAS 108-67-8
Sinochem is a major Mesitylene supplier. Meanwhile, our firm staffs a group of experts devoted to your development of China Mesitylene.
1,3,5-Trimethylbenzene mainly used as organic synthesis raw material, for the preparation of trimeric acid, and as an antioxidant, epoxy resin curing agent, polyester resin stabilizer, alkyd resin plasticizer.
- Excellent chemical stability under harsh conditions
- Strong solvency for resins, oils, and organic compounds
- High resistance to decomposition at elevated temperatures
- Suitable for industrial solvent and synthesis applications
Mesitylene Description
NAME: Mesitylene
Synonyms: 1,3,5-Trimethylbenzene / sym-Trimethylbenzene / 1,3,5-TMB
Molecular Formula: C9H12
Molecular Weight: 120.19
CAS NO.: 108-67-8
Density: 0.9±0.1 g/cm3
Boiling point: 166.7±20.0 °C at 760 mmHg
Melting point: -45 °C
Flashing point: 44.4±0.0 °C
Appearance: Colorless liquid has a characteristic smell
Solubility: Insoluble in water, soluble in ethanol, ether, benzene.
Properties: Colorless transparent liquid. Insoluble in water, soluble in ethanol, and soluble in benzene, ether, and acetone in any proportion.
Storage: To ensure safety, store this material in a cool, well-ventilated warehouse, segregated from oxidizers. Implement explosion-proof lighting and ventilation, and utilize spark-resistant tools. Equip the storage area with spill control measures and appropriate containment. Employ fire-resistant storage practices, protect from sunlight, and handle with care to avoid damaging packaging. Pack in sealed ceramic, plastic, or glass containers, then encase in non-combustible padded wooden boxes, secured with wire. Limit each container to 50kg and clearly label with Flammable warnings.
Safety Protection：The toxicity is the same as xylene. It can irritate the nose and throat, cause pneumonia, damage the nervous system and liver, and can degrease the skin when in contact with it. The operation site should be well ventilated and the operator should wear protective equipment.
About Us: With over many years as a certified Mesitylene manufacturer, we combine innovation with stringent production standards to deliver high-performance product.
1,3,5-Trimethylbenzene Technical
| Item | Index |
| Appearance | Colorless liquid |
| density(20ºC),kg/m³ | 862.0~868.0 |
| Mesitylene,% ( mass fraction ) | ≥98.0 |
| pseudocumene ,% ( mass fraction ) | ≤0.8 |
| Seibert color | ≥25 |
As a certified Mesitylene factory, we adhere to strict quality protocols, with every batch undergoing rigorous testing to ensure consistent efficacy and safety.
sym-Trimethylbenzene Applications
- Chemical Intermediate (Organic Synthesis): Used as an important intermediate in organic synthesis, especially for producing fine chemicals, dyes, pharmaceuticals, and specialty aromatic derivatives.
- Solvent in Industrial Applications: Acts as a high-boiling aromatic solvent in coatings, resins, inks, and cleaning formulations due to its good solvency and chemical stability.
- Petrochemical and Refining Processes: Used in petrochemical research and refining processes as a component of C9 aromatic fractions and for separation and purification studies.
- Polymer and Resin Industry: Serves as a processing solvent or auxiliary component in the production and modification of resins and polymer materials.
- Laboratory and Analytical Use: Widely used as a standard reagent or solvent in laboratory research, chromatography, and analytical chemistry applications.
Frequently Asked Questions (FAQ)
Q: Is Mesitylene a solvent?
A: Yes, it is a high-boiling aromatic solvent with good stability and solvency power, commonly used in coatings, inks, and resin systems.
Q: Is Mesitylene hazardous?
A: Yes, it is flammable and should be handled with proper safety measures, including ventilation, protective equipment, and avoiding ignition sources.
