Description

Aroclor 5442 is a specific, high-purity polychlorinated biphenyl (PCB) mixture, identified by CAS NO 12642-23-8. This specialized chemical is valued for its consistent composition and thermal stability, making it a critical reference material and component in controlled industrial applications. It is primarily utilized by analytical laboratories, environmental testing facilities, and advanced material science researchers who require reliable, well-characterized PCB standards for calibration, method development, and specialized formulations.

Application

• Primary use as an analytical reference standard for gas chromatography (GC) and mass spectrometry (MS) in environmental testing.
• Calibration and quality control material for laboratories monitoring PCB contamination in soil, water, and biological samples.
• Critical component in the preparation of proficiency testing samples for regulatory and accreditation bodies.
• Research and development applications in studying the environmental fate, transport, and degradation of PCBs.
• Used in specialized material science for investigating the properties of dielectric fluids and heat transfer systems in closed, controlled settings.
• Serves as a synthetic intermediate in the development of novel chemical entities for scientific study.

Basic Information

Product Name	Aroclor 5442
CAS No.	12642-23-8
Molecular Formula	C12H(10-n)Cln (Polychlorinated Biphenyl Mixture)
Molecular Weight	Varies by congener composition. Contact for details.
Synonyms	PCB No. 5442; Polychlorinated Biphenyl 5442; Aroclor® 5442; Chlorinated Biphenyl 5442; 1,1'-Biphenyl, chloro derivs. (5442); PCBs (Aroclor 5442); Halogenated Biphenyl Mixture 5442
EINECS	Contact for details.

Quality Control

Every batch of Aroclor 5442 is produced and verified under stringent quality protocols to ensure identity, purity, and compositional consistency essential for its role as a reference material. Our quality system includes comprehensive analysis using advanced chromatographic and spectroscopic techniques. A detailed Certificate of Analysis (COA), providing batch-specific data on congener profile and purity, is supplied with each shipment to support your compliance and research needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong alkalis and incompatible organic solvents. Due to the regulated nature of PCBs, ensure storage complies with all local and international environmental health and safety regulations.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Identification (GC/MS)	Conforms to Aroclor 5442 reference chromatogram
Total PCB Content (Assay)	> 99.0% (by GC-FID)
Congener Profile	Matches certified distribution pattern
Water Content (KF)	< 0.1%
Solvent Residue (GC)	Meets internal specifications

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