Description

p-Xylene CAS NO 106-42-3 is a high-purity aromatic hydrocarbon and a critical isomer of xylene, prized for its role as a fundamental chemical intermediate. Its primary commercial value lies in its oxidation to produce purified terephthalic acid (PTA), the essential monomer for polyethylene terephthalate (PET) resin and polyester fiber manufacturing. This compound is indispensable for industries including polymer production, solvent formulation, and specialty chemical synthesis, where consistent quality and reliable supply are paramount.

Application

• Primary Raw Material for PTA/PET: The predominant use is as the feedstock for the catalytic oxidation process to manufacture purified terephthalic acid (PTA), which is then polymerized to create PET for bottles, packaging, and polyester fibers.
• Solvent and Reaction Medium: Serves as an effective solvent in the coatings, paints, and adhesives industries, as well as a reaction medium in various organic synthesis processes.
• Chemical Synthesis Intermediate: Used in the production of other valuable chemicals, including dimethyl terephthalate (DMT), herbicides, and plasticizers.
• Laboratory and Analytical Reagent: Employed as a high-purity solvent and reference standard in chromatography and other analytical techniques within research and quality control laboratories.

Basic Information

Product Name	p-Xylene
CAS No.	106-42-3
Molecular Formula	C8H10
Molecular Weight	106.17 g/mol
Synonyms	1,4-Dimethylbenzene; p-Dimethylbenzene; p-Xylol; 4-Methyltoluene; Paraxylene; PX; NSC 72419; Benzene, 1,4-dimethyl-
EINECS	203-396-5

Quality Control

Our p-Xylene is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including gas chromatography (GC) for assay and impurity profiling. A Certificate of Analysis (COA) detailing specific results for each parameter is provided with every shipment, ensuring full traceability and compliance with customer specifications and relevant industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its highly volatile nature, keep containers tightly sealed when not in use. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F).

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.5%
o-Xylene & m-Xylene	≤ 0.5% (Total)
Ethylbenzene	≤ 0.1%
Non-aromatic Hydrocarbons	≤ 0.1%
Water Content (KF)	≤ 0.05%
Color (Pt-Co)	≤ 10

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.