Chemical Materials and Intermediates

1,2,4-TrimethylBenzene
alias  ,Pseudocumene
1,2,4－Trimethyl Benzene;pseudocumene
Molecule Formula C₉H₁₂

Physical chemical properties: colorless liquid, insoluble in water, soluble in ethanol, aether and benzene. Melting point -44℃, boiling point 168℃.Relative density ( d₄²⁰ )0.8758. Refractive index ( n_D²¹ )1.5048. Flash point 48℃. Combustion heat 5206.99 kj.
　　 　　 　 　　　　　 　　 　Typical Data
Index 　　　　　　　　　　　　　　　　　　　　　　Test Method
Purity, m/m%　　　　　　　　　　 　≥98　　　　　product standard Q/SHJL0207-2002 appendix A
Ethyltoluene, m/m%　　 　 　 　 　 　≤1.0
Density( d₄²⁰ ) 　　　　　　 Actual Measurement GB/T1884-92

Product applications: This product is a basic organic industrial chemical. It is used to make medicines (Vitamin E), dyes, synthetic resins and hydrogen peroxide. It is also used to make trimellitic anhydride, pyromellitic dianhydride, soluble alkide resins, unsaturated polyester resins, plasticizers,ethoxyline resin solidifying agents and surfactants.

Manufacture method: It is isolated from the C9-C10 aromatic hydrocarbons that are produced by catalytic reforming and splitting decomposition of naphtha. The content of pseudocumene in reformed aromatic hydrocarbons is as high as over 40%. Fractional distillation will produce pure product of 99% or more.

Toxicity and protection: This product is toxic and it irritates mucous membrane and central nerves. Avoid contact.

Packaging, storage and transportation: This product is flammable and explosive and should be stored in oil cans, tank trucks or iron barrels which meet the requirement of inspection regulations. Taking expansion into consideration, safety space should be allocated according to temperature variations. Never completely fill the container. Fire should be strictly prohibited during storage and transportation and related fire control regulations should be observed. Adequate fire control equipments should be prepared.