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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Guidance on Safe Use

Guidance on Safe Use

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Administrative data

First-aid measures

General advice:

Immediately remove contaminated clothing. Avoid contact with the skin, eyes and clothing.

If inhaled:

Keep patient calm, remove to fresh air, seek medical attention.

On skin contact:

Wash thoroughly with soap and water. Burns caused by molten material require hospital treatment.

On contact with eyes:

Immediately wash affected eyes for at least 15 minutes under running water with eyelids held open,

consult an eye specialist.

On ingestion:

Rinse mouth immediately and then drink 200-300 ml of water, seek medical attention.

Fire-fighting measures

Suitable extinguishing media:

foam, carbon dioxide, water spray

Specific hazards:

hydrogen cyanide, nitrogen oxides

The substances/groups of substances mentioned can be released in case of fire.

Further information:

Collect contaminated extinguishing water separately, do not allow to reach sewage or effluent


Accidental release measures

Personal precautions:

Ensure adequate ventilation. Avoid contact with skin and eyes.  Use breathing apparatus if exposed to vapours/dust/aerosol.

Environmental precautions:

Do not empty into drains. Retain and dispose of contaminated wash water.

Methods for cleaning up or taking up:

For large amounts: Allow to solidify and sweep/shovel up.

For residues: Rinse away with water.

Handling and storage


Ensure thorough ventilation of stores and work areas. Avoid contact with skin and eyes. Wear suitable protective clothing and eye/face protection.  Handle in accordance with good industrial hygiene and safety practice.

During transportation in silo trucks the product

is covered with nitrogen, do not climb in.

Protection against fire and explosion:

Vapours may form explosive mixture with air. Dust can form an explosive mixture with air.Take precautionary measures against static



Segregate from acids and bases. Segregate from oxidants.

Suitable materials for containers: Stainless steel 1.4301 (V2), Stainless steel 1.4401

glass, tinned carbon steel (Tinplate), Carbon steel (Iron)

Further information on storage conditions: Keep under nitrogen.

Storage stability:

Storage temperature for liquid melt: 75 - 90 °C

The stated storage temperature should be noted.

Tablets: Store in unopened original containers in a cool and dry place.

Transport information

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Marine transport (UN RTDG/IMDG)

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Exposure controls / personal protection

Components with workplace control parameters

105-60-2: caprolactam


marine water: 0.2 mg/l

intermittent release: 1 mg/l

sediment (freshwater): 18.7 mg/kg

sediment (marine water): 1.87 mg/kg

soil: 2.55 mg/kg

STP: 1737 mg/l



Short-term exposure - local effects, Inhalation: 5 mg/m3Personal protective equipment

Respiratory protection:

Respiratory protection in case of vapour/aerosol release. Gas filter for gases/vapours of organic compounds (boiling point >65 °C, e. g. EN 14387 Type A)

Hand protection:

Chemical resistant protective gloves (EN 374)

Suitable materials also with prolonged, direct contact (Recommended: Protective index 6, corresponding > 480 minutes of permeation time

according to EN 374):

butyl rubber (butyl) - 0.7 mm coating thickness

nitrile rubber (NBR) - 0.4 mm coating thickness

Manufacturer's directions for use should be observed because of great diversity of types.

Eye protection:

Tightly fitting safety goggles (splash goggles) (e.g. EN 166)

Body protection:

Body protection must be chosen depending on activity and possible exposure, e.g. apron, protecting boots, chemical-protection suit (according to EN 14605 in case of splashes or EN ISO 13982 in case of dust).

General safety and hygiene measures

Handle in accordance with good industrial hygiene and safety practice. Take off immediately all contaminated clothing. At the end of the shift the skin should be cleaned and skin-care agents applied.

Stability and reactivity


No hazardous reactions if stored and handled as prescribed/indicated.

Corrosion to metals:

No corrosive effect on metal.

Reactions with water/air:

Which flammable gases:

Incomplete combustion results in formation of toxic gases, containing mainly carbon monoxide and carbon dioxide.

Which toxic gases:

nitrogen oxides

Formation of flammable gases:


Forms no flammable gases in the presence of water.

Chemical stability

The product is stable if stored and handled as prescribed/indicated.

Possibility of hazardous reactions

Reacts with oxidizing agents. Polymerization coupled with heat formation.

Conditions to avoid

Temperature: > 100 °C

Avoid all sources of ignition: heat, sparks, open flame. Avoid formation of polymers in valves and pipes.

Incompatible materials

Substances to avoid: oxidizing agents

Hazardous decomposition products

Thermal decomposition products:

No hazardous decomposition products if stored and handled as prescribed/indicated. Incomplete combustion results in formation of toxic gases, containing mainly carbon monoxide and carbon dioxide.

Disposal considerations

Waste treatment methods

Contact manufacturer.

Incinerate in suitable incineration plant, observing local authority regulations.

Contaminated packaging:

Uncleaned empties should be disposed of in the same manner as the contents.