Mesitylene CAS#108-67-8
Mesitylene is an aromatic hydrocarbon belonging to the xylene isomers. It is a clear, water-white liquid with a strong aromatic odor. Mesitylene has a relatively high boiling point of approximately 144.5 ??C and is poorly soluble in water. It is commonly used as a solvent in various industrial applications, including the production of chemicals, pharmaceuticals, and as a component in gasoline. Due to its chemical stability and low reactivity, it is also utilized in the synthesis of dyes and as a dehydrating agent for organic compounds. Mesitylene’s chemical properties make it a versatile and valuable component in the chemical industry.
Mesitylene CAS#108-67-8
| Mesitylene Chemical Properties |
| Melting point | -45 ??C |
| Boiling point | 163-166???C(lit.) |
| density | 0.864 g/mL at 25 ??C(lit.) |
| vapor density | 4.1 (vs air) |
| vapor pressure | 14 mm Hg ( 55 ??C) |
| refractive index | n20/D?1.499(lit.) |
| Fp | 112???F |
| storage temp. | 2-8??C |
| solubility | Miscible with alcohol, benzene, ether (Windholz et al., 1983), and trimethylbenzene isomers. |
| form | Liquid |
| pka | >14 (Schwarzenbach et al., 1993) |
| color | Clear colorless |
| explosive limit | 0.88-6.1%, 100??F |
| Odor Threshold | 0.17ppm |
| Water Solubility | 2.9 g/L (20 oC) |
| Merck | 14,5907 |
| BRN | 906806 |
| Henry’s Law Constant | 4.03, 4.60, 5.71, 6.73, and 9.63 at 10, 15, 20, 25, and 30 ??C, respectively (EPICS, Ashworth et al.,1988) |
| Exposure limits | NIOSH REL: TWA 25 ppm (125 mg/m3); ACGIH TLV: TWA for mixed isomers 25 ppm (adopted). |
| Dielectric constant | 3.4??Ambient?? |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| InChIKey | AUHZEENZYGFFBQ-UHFFFAOYSA-N |
| LogP | 3.42 at 20?? |
| CAS DataBase Reference | 108-67-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzene, 1,3,5-trimethyl-(108-67-8) |
| EPA Substance Registry System | 1,3,5-Trimethylbenzene (108-67-8) |
| Safety Information |
| Hazard Codes | Xi,N,F,T |
| Risk Statements | 10-37-51/53-39/23/24/25-23/24/25-11-37/38 |
| Safety Statements | 61-45-36/37-16-7 |
| RIDADR | UN 2325 3/PG 3 |
| OEB | A |
| OEL | TWA: 25 ppm (125 mg/m3) |
| WGK Germany | 2 |
| RTECS | OX6825000 |
| F | 10 |
| Autoignition Temperature | 1022 ??F |
| Hazard Note | Irritant/Flammable |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29029080 |
| Hazardous Substances Data | 108-67-8(Hazardous Substances Data) |
| Toxicity | LD50 (inhalation) for rats 24 g/m3/4-h (quoted, RTECS, 1985). |
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