AdvanSix PIR-Caprolactam

AdvanSix PIR-Caprolactam is an independently certified & mass-balance allocated 100% post-industrial recycled (PIR) raw material1 providing the same processability, properties and functionalities as its standard, non-recycled counterpart. PIR-Caprolactam is used in a variety of polymerization, melt extrusion, and other chemical applications worldwide. As one of the largest and most experienced suppliers of merchant-grade caprolactam, AdvanSix offers industry-leading quality, consistency, and reliability of supply.

Chemical Name: Caprolactam

CAS Number: 105-60-2

Chemical Family: Amides, Caprolactams

Grade: Commercial Grade

Labeling Claims: Recycled

Synonyms: 2-azepanone, 2-ketohexamethyleneimine, 2-Oxohexamethyleneimine, 2-oxohexamethylenimine, 6-Caprolactam, Aminocaproic Lactam, Azepan-2-one, Hexahydro-2H-azepin-2-one

Technical Data Sheet

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Enhanced TDS

Identification & Functionality

Chemical Family
Chemical Name
Molecular formula

Features & Benefits

Labeling Claims

Applications & Uses



Solid white flakes / Molten colorless liquid
Mildly disagreeable
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Molecular Weight113.16--
Specific Gravity (at 77°C, H2O = 1.0)1.02--
Water Solubility (at 25°C)approx. 525g/100g H₂O-
Boiling Point270.0°C-
Melting Point69.0°C-
Vapor Pressure (at 20°C)max. 0.001mm Hg-
Vapor Density (Air = 1.0)3.91--
Evaporation Rate (compared to butyl acetate)max. 1--
Volatile Content100.0%-
Flash Point142.0°COpen cup
ValueUnitsTest Method / Conditions
Water Contentmax. 0.10wt%QALAC-0005
Free Alkalinitymax. 0.05meg/kgQALAC-0006
Free Aciditymax. 0.05meg/kgQALAC-0006
Color (50% solution at 390 nm)max. 5APHAQALAC-0001
Permanganate Index (ISO)max. 5-QALAC-0002
Permanganate Numbermin. 20,000secondsQALAC-0009
Volatile Base (as ammonia)max. 10ppmQALAC-0012
Ashmax. 10ppmQALAC-0007
Iron Contentmax. 0.5ppmQALAC-0011
Transmittance (at 290 nm)min. 90%QALAC-0033

Regulatory & Compliance

Storage & Handling

Storage Conditions

Store in moisture-tight containers in a cool, dry area. Store molten material at 70-80°C (158-176°F) under nitrogen cushion containing less than 5 ppm oxygen