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CAPROLACTAM

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The Chemical Identifier fields include common identification numbers, the NFPA diamond U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
CAS Number UN/NA Number
  • 105-60-2
none
DOT Hazard Label USCG CHRIS Code
data unavailable
NIOSH Pocket Guide International Chem Safety Card
Caprolactamexternal link
NFPA 704
data unavailable
General Description
Clear to milky white-colored solution with a mild, disagreeable odor. Contact may cause slight irritation to skin, eyes, and mucous membranes. May be mildly toxic by ingestion. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. As a liquid it can easily penetrate the soil and contaminate groundwater and nearby streams. Used to make other chemicals.

The Hazard fields include special hazard alerts air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources.
Reactivity Alerts
  • Polymerizable
Air & Water Reactions
Water soluble.
Fire Hazard
Special Hazards of Combustion Products: Toxic oxides of nitrogen (USCG, 1999)
Health Hazard
Inhalation causes coughing or mild irritation. Contact with hot liquid will burn eyes and skin. (USCG, 1999)
Reactivity Profile
CAPROLACTAM is hygroscopic. This compound can react with strong oxidizing agents and strong bases. It can also react with chlorinated hydrocarbons and nitro compounds. A potentially explosive reaction occurs with acetic acid + dinitrogen trioxide. (NTP, 1992)
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below. More info about absorbents, including situations to watch out for...

  • Mineral-Based & Clay-Based Absorbents
  • Dirt/Earth

The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources.
Isolation and Evacuation
No information available.
Firefighting
No information available.
Non-Fire Response
No information available.
Protective Clothing
Skin: Wear appropriate personal protective clothing to prevent skin contact.

Eyes: Wear appropriate eye protection to prevent eye contact.

Wash skin: The worker should immediately wash the skin when it becomes contaminated.

Remove: Work clothing that becomes wet or significantly contaminated should be removed and replaced.

Change: Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premise. (NIOSH, 2016)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds The information in CAMEO Chemicals comes from a variety of data sources.
Chemical Formula:
  • C6H11NO
Flash Point: 257 ° F (NTP, 1992)
Lower Explosive Limit (LEL): 1.4 % (NTP, 1992)
Upper Explosive Limit (UEL): 8 % (NTP, 1992)
Autoignition Temperature: 707 ° F (NTP, 1992)
Melting Point: 156 ° F (NTP, 1992)
Vapor Pressure: 0.001 mm Hg at 68 ° F ; 3 mm Hg at 212° F (NTP, 1992)
Vapor Density (Relative to Air): 3.91 (NTP, 1992)
Specific Gravity: 1.02 at 170.6 ° F (USCG, 1999)
Boiling Point: 512.4 ° F at 760 mm Hg (NTP, 1992)
Molecular Weight: 113.16 (NTP, 1992)
Water Solubility: greater than or equal to 100 mg/mL at 68.9° F (NTP, 1992)
Ionization Potential: data unavailable
IDLH: data unavailable

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

Chemical PAC-1 PAC-2 PAC-3
Caprolactam (dust) (105-60-2) 3 mg/m3 40 mg/m3 240 mg/m3
(DOE, 2016)

The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Department of Homeland Security's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).

EPA Consolidated List of Lists

No regulatory information available.

DHS Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

This section provides a listing of alternate names for this chemical, including trade names and synonyms.
  • 6-AMINOCAPROIC ACID LACTAM
  • AMINOCAPROIC LACTAM
  • 6-AMINOHEXANOIC ACID CYCLIC LACTAM
  • 1-AZA-2-CYCLOHEPTANONE
  • 2-AZACYCLOHEPTANONE
  • CAPROLACTAM
  • 6-CAPROLACTAM
  • CYCLOHEXANONE ISO-OXIME
  • E-CAPROLACTUM
  • EPSILON-CAPROLACTAM
  • GAMMA-CAPROLACTAM
  • 2H-AZEPIN-2-ONE,HEXAHYDRO
  • 2H-AZEPIN-7-ONE,HEXAHYDRO
  • HEXAHYDRO-2-AZEPINONE
  • HEXAHYDRO-2H-AZEPIN-2-ONE
  • HEXAHYDRO-2H-AZEPIN-2-ONE (9CI)
  • HEXAHYDRO-2H-AZEPINE-2-ONE
  • HEXAMETHYLENIMINE,2-OXO-
  • 6-HEXANELACTAM
  • HEXANNIC ACID
  • HEXANOIC ACID, 6-AMINO-, CYCLIC LACTAM
  • HEXANOIC ACID-6-AMINO-,LACTAM
  • HEXANOLACTAM
  • HEXANONE ISOXIME
  • 1,6-HEXOLACTAM
  • 2-KETOHEXAMETHYLENIMINE
  • NCI-C50646
  • OMEGA-CAPROLACTAM
  • OMEGA-CAPROLACTUM
  • 2-OXOHEXAMETHYLENEIMINE
  • 2-OXOHEXAMETHYLENIMINE
  • 2-PERHYDROAZEPINONE

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