1,2,4-Trimethylbenzene
- CAS No.
- 95-63-6
- Chemical Name:
- 1,2,4-Trimethylbenzene
- Synonyms
- TRIMETHYLBENZENE;PSC;pseudo;PSI-CUMENE;PSEUDOCUMENE;1,3,4-TRIMETHYLBENZENE;1,2,5-Trimethylbenzene;1,2,4-trimethyl-benzen;Benzene,1,2,4-trimethyl-;1,2,4-trimethylbenzene (pseudocumene)
- CBNumber:
- CB0854702
- Molecular Formula:
- C9H12
- Molecular Weight:
- 120.19
- MOL File:
- 95-63-6.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/7/29 15:17:36
| Melting point | -44 °C |
|---|---|
| Boiling point | 168 °C(lit.) |
| Density | 0.876 g/mL at 20 °C(lit.) |
| vapor density | 4.1 (vs air) |
| vapor pressure | 4.5 mm Hg ( 37.7 °C) |
| refractive index |
n |
| Flash point | 120 °F |
| storage temp. | Store below +30°C. |
| solubility | 0.057g/l |
| pka | >14 (Schwarzenbach et al., 1993) |
| form | Liquid |
| color | Clear colorless |
| Odor | char. aromatic odor |
| explosive limit | 0.8-7%(V) |
| Odor Threshold | 0.12ppm |
| Water Solubility | Soluble in alcohol, benzene and ether. Slightly soluble in water |
| Merck | 14,7915 |
| BRN | 1903005 |
| Henry's Law Constant | 6.946, 11.202, and 15.702 at 27.0, 35.0, and 45.0 °C, respectively (dynamic headspace, Hansen et al., 1995) |
| Exposure limits | NIOSH REL: TWA 25 ppm (125 mg/m3); ACGIH TLV: TWA for mixed isomers 25 ppm (adopted). |
| Dielectric constant | 2.4（16℃） |
| Stability | Stable. Incompatible with strong oxidizing agents. Flammable. May form explosive mixtures with air. |
| InChIKey | GWHJZXXIDMPWGX-UHFFFAOYSA-N |
| LogP | 3.630 |
| CAS DataBase Reference | 95-63-6(CAS DataBase Reference) |
| EPA Substance Registry System | 1,2,4-Trimethylbenzene (95-63-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |     GHS02,GHS07,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H226-H304-H315-H319-H332-H335-H411 | |||||||||
| Precautionary statements | P210-P273-P301+P310+P331-P302+P352-P304+P340+P312-P305+P351+P338 | |||||||||
| Hazard Codes | Xn,N,F,Xi,T | |||||||||
| Risk Statements | 10-20-36/37/38-51/53-39/23/24/25-23/24/25-11-65 | |||||||||
| Safety Statements | 26-61-45-36/37-16-7-62 | |||||||||
| RIDADR | UN 3295 3/PG 3 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 25 ppm (125 mg/m3) | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | DC3325000 | |||||||||
| Autoignition Temperature | 959 °F | |||||||||
| Hazard Note | Irritant/Flammable | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29029090 | |||||||||
| Toxicity | LD50 i.p. in male, female mice (mg/kg): 5000, 4100 (Janik-Spiechowicz) | |||||||||
| NFPA 704 |
|
1,2,4-Trimethylbenzene price More Price(9)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | T73601 | 1,2,4-Trimethylbenzene 98% | 95-63-6 | 500ML | ₹1859.78 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | T73601 | 1,2,4-Trimethylbenzene 98% | 95-63-6 | 25ML | ₹1859.78 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | T73601 | 1,2,4-Trimethylbenzene 98% | 95-63-6 | 2L | ₹6740.4 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.14505 | 1,2,4-Trimethylbenzene for synthesis | 95-63-6 | 100ML | ₹1950.01 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.14505 | 1,2,4-Trimethylbenzene for synthesis | 95-63-6 | 500ML | ₹3310 | 2022-06-14 | Buy |
1,2,4-Trimethylbenzene Chemical Properties,Uses,Production
Description
1,2,4-Trimethylbenzene (mesitylene) is an aromatic hydrocarbon compound commonly present in commercial solvents encompassing their boiling range. Mesitylene are the most common isomer used in commercial applications. Aromatic hydrocarbons in hydrocarbon solvents are predominantly alkylated one ring structures as well as two aromatic ring structures which may also be alkylated.
Chemical Properties
colourless liquid. Insoluble in water, soluble in ethanol, ether and benzene.
Physical properties
Colorless liquid with a slight aromatic odor. A detection odor threshold concentration of 12 mg/m3 (2.4 ppmv) was experimentally determined by Dravnieks (1974).
Uses
1,2,4-Trimethylbenzene is the unlabelled version of 1,2,4-Trimethyl 13C6-benzene (T796173), a labelled aromatic standard.
Definition
ChEBI: 1,2,4-trimethylbenzene is a trimethylbenzene carrying methyl groups at positions 1, 2 and 4. It has a role as a neurotoxin.
General Description
A liquid. Flash point near 130°F. Less dense than water and insoluble in water. Vapors irritate eyes, throat, and nose. Used in dyes and pharmaceuticals.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
1,2,4-Trimethylbenzene is incompatible with the following: Oxidizers, nitric acid .
Hazard
Moderate fire risk. Central nervous system depressant, irritant to mucous membranes. Asthma and hematologic effects.
Health Hazard
Harmful if inhaled or swallowed. Vapor or mist is irritating to the eyes, mucous membrane and upper respiratory tract. Prolonged contact can cause dermatitis, nausea, headache, dizziness, and narcotic effect.
Safety Profile
Moderately toxic by intraperitoneal route. Mildly toxic by inhalation. Can cause central nervous system depression, anemia, bronchitis. Flammable liquid when exposed to heat, sparks, or flame. To fight fire, use foam, alcohol foam, mist. Emitted from modern building materials (CENEAR 69,22,91). When heated to decomposition it emits acrid smoke and irritating fumes.
Environmental Fate
Biological. In anoxic groundwater near Bemidji, MI, 1,2,4-trimethylbenzene anaerobically
biodegraded to the intermediate 3,4-dimethylbenzoic acid and the tentatively identified
compounds 2,4- and/or 2,5-dimethylbenzoic acid (Cozzarelli et al., 1990).
Photolytic. Glyoxal, methylglyoxal, and biacetyl were produced from the photooxidation of
1,2,4-trimethylbenzene by OH radicals in air at 25 °C (Tuazon et al., 1986a). A rate constant of
2.0 x 10-8 L/molecule?sec was reported for the reaction of 1,2,4-trimethylbenzene with OH radicals
in the gas phase (Darnall et al., 1976). Similarly, the rate constants for the reaction of 1,2,4-
trimethylbenzene and OH radicals at room temperature were 3.35 x 10-11 (Hansen et al., 1975) and
3.84 x 10-11 cm3/molecule?sec (Atkinson, 1985). At 25 °C, a rate constant of 3.15 x 10-11
cm3/molecule?sec was reported for the same reaction (Ohta and Ohyama, 1985). Products
identified from the OH radical-initiated reaction of 1,2,4-trimethylbenzene in the presence of
nitrogen dioxide were 3-hexene-2,5-dione and 2,3-butanedione (Bethel et al., 2000).
Chemical/Physical. 1,2,4-Trimethylbenzene will not hydrolyze in water (Kollig, 1993).
Purification Methods
Reflux pseudocumene over sodium and distil it under reduced pressure. [Beilstein 6 H 1088, 6 I 542, 6 II 1072, 6 III 6278, 6 IV 7339.]
1,2,4-Trimethylbenzene Preparation Products And Raw materials
Raw materials
Preparation Products
1of4
chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| INOX Air Products Pvt. Ltd. | 91-22-41252348 | Maharashtra, India | 53 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Jay Ambe Agro Products | 08048371860Ext 582 | Gujarat, India | 1 | 58 | Inquiry |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | China | 12458 | 58 | Inquiry |
| Hebei Guanlang Biotechnology Co,.LTD | +86-19930503253; +8619930503252 | China | 5835 | 58 | Inquiry |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503259 +86-19930503259 | China | 18435 | 58 | Inquiry |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | China | 20308 | 58 | Inquiry |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | China | 29798 | 60 | Inquiry |
Related articles
- 1,2,4-Trimethylbenzene- Toxicity
- 1,2,4-Trimethylbenzene (mesitylene) is an aromatic hydrocarbon compound commonly present in commercial solvents encompassing t....
- Feb 18，2020
95-63-6(1,2,4-Trimethylbenzene)Related Search:
1of4
chevron_right