Description

Aroclor 1242 is a specific polychlorinated biphenyl (PCB) mixture, identified by the CAS number 53469-21-9. This product is valued for its historical role as a stable dielectric fluid and flame retardant in industrial applications. It is primarily required by industries involved in electrical equipment maintenance, research into environmental remediation, and analytical laboratories for calibration and reference standards.

Application

• Dielectric Fluid: Historically used as a coolant and insulating fluid in transformers, capacitors, and other electrical equipment.
• Research & Development: Serves as a critical reference standard and test material in environmental fate, toxicology, and remediation studies.
• Analytical Standard: Used for calibration and quality control in gas chromatography (GC) and mass spectrometry (MS) analyses for PCB detection.
• Flame Retardant: Formerly utilized as an additive in certain plastics, adhesives, and coatings to reduce flammability.
• Hydraulic & Heat Transfer Fluids: Employed in closed-system industrial applications requiring thermal stability and non-flammability.

Basic Information

Product Name	Aroclor 1242
CAS No.	53469-21-9
Molecular Formula	C12H10-nCln (n ≈ 3)
Molecular Weight	~261 (Average)
Synonyms	PCB 1242; Polychlorinated Biphenyl 1242; Chlorinated Biphenyl; Aroclor® 1242; 1,1'-Biphenyl, chloro derivs.; PCBs; Kanechlor 400
EINECS	258-567-9

Quality Control

Our Aroclor 1242 is produced and handled under strict quality protocols to ensure batch-to-batch consistency and purity for research and analytical applications. Each lot is analyzed to confirm congener distribution and identity against established references. A Certificate of Analysis (COA) detailing congener profile and purity is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat and incompatible materials. Recommended storage temperature is 2-8°C to maximize stability.

Specification

Item	Specification
Appearance	Clear, viscous, light yellow liquid
Identification (GC/MS)	Conforms to Aroclor 1242 reference pattern
Chlorine Content	42% (Typical)
Purity (Total PCBs)	>98%
Density (at 25°C)	~1.38 g/mL
Refractive Index (n20D)	~1.625

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