Trimethylbenzene - Wikipedia
The trimethylbenzenes constitute a group of substances of aromatic hydrocarbons, which structure consists of a benzene ring with three methyl groups (–CH 3) as a substituent. [ 1 ] [ 2 ] Through their different arrangement, they form three structural isomers with the molecular formula C …
1,2,4-Trimethylbenzene - Wikipedia
1,2,4-Trimethylbenzene, also known as pseudocumene, is an organic compound with the chemical formula C 6 H 3 (CH 3) 3. Classified as an aromatic hydrocarbon, it is a flammable colorless liquid with a strong odor. It is nearly insoluble in water but soluble in organic solvents. It occurs naturally in coal tar and petroleum (about 3%).
CDC - NIOSH Pocket Guide to Chemical Hazards - 1,2,4-Trimethylbenzene
Asymmetrical trimethylbenzene, psi-Cumene, Hemimellitene [1,2,4-Trimethylbenzene], Pseudocumene [Note: Hemimellitene is a mixture of the 1,2,3-isomer with up to 10% of related aromatics such as the 1,2,4-isomer.] Clear, colorless liquid with a distinctive, aromatic odor. Oxidizers, nitric acid.
Trimethylbenzene | C9H12 | CID 10686 - PubChem
1,2,3-trimethylbenzene is a trimethylbenzene carrying methyl groups at positions 1, 2 and 3. It has been found in Centaurium erythraea. It has a role as a neurotoxin and a plant metabolite. 1,2,3-Trimethylbenzene has been reported in Artemisia herba-alba, Ferulago nodosa, and other organisms with data available.
1,2,4-Trimethylbenzene | C9H12 | CID 7247 - PubChem
Less dense than water and insoluble in water. Vapors irritate eyes, throat, and nose. Used in dyes and pharmaceuticals. 1,2,4-trimethylbenzene is a trimethylbenzene carrying methyl groups at positions 1, 2 and 4. It has a role as a neurotoxin.
1,2,3-Trimethylbenzene - Wikipedia
1,2,3-Trimethylbenzene is an organic compound with the chemical formula C 6 H 3 (CH 3) 3. Classified as an aromatic hydrocarbon, it is a flammable colorless liquid. It is nearly insoluble in water but soluble in organic solvents. The compound occurs naturally in coal tar and petroleum. It is one of the three isomers of trimethylbenzene.
TRIMETHYLBENZENE, MIXED ISOMERS - Occupational Safety and Health ...
2022年5月12日 · ACGIH: Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Trimethyl benzene (mixed isomers). See annual publication for most recent information. Järnberg, J., Ståhlbom, B., Johanson, G. and Löf, A.: Urinary excretion of dimethylhippuric acids in humans after exposure to trimethylbenzenes. Int.
Benzene, 1,2,4-trimethyl- - NIST Chemistry WebBook
Notes. Go To: Top Data from NIST Standard Reference Database 69: NIST Chemistry WebBook The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment.
Trimethylbenzene - an overview | ScienceDirect Topics
Trimethylbenzene refers to a mixture of three isomers: 1,2,3-TMB, 1,2,4-TMB, and 1,3,5-TMB. It is a chemical compound with the molecular formula C9H12. You might find these chapters and articles relevant to this topic. J.A. Davis, ... A. Kraft, in …
Benzene, 1,2,4-trimethyl- - NIST Chemistry WebBook
Quantity Value Units Method Reference Comment; T boil: 442.4 ± 0.8: K: AVG: N/A: Average of 32 out of 33 values; Individual data points Quantity Value Units Method Reference Comment; T fus: 227. ± 5.
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