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Cyclohexane safety data

GHS hazards, precautions, first aid, handling and transport for Cyclohexane. A classification summary, not a safety data sheet.
CAS 110-82-7Formula C6H12

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

GHS classification

Pictograms, signal word and hazard classes of the GHS classification

GHS02: Flammable
Flammable
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment
Signal word
Danger
310
NFPA 704 rating
health, fire, reactivity

Hazard classes and categories

  • Flam. Liq. 2
  • Asp. Tox. 1
  • Skin Irrit. 2
  • STOT SE 3 (narcotic effects)
  • Aquatic Acute 1
  • Aquatic Chronic 1

Hazard statements

H codes grouped by type. Percentages show the share of classification notifications that report the statement

Physical hazards

  • H225Highly flammable liquid and vapour.

Health hazards

  • H304May be fatal if swallowed and enters airways.
  • H315Causes skin irritation.
  • H336May cause drowsiness or dizziness.

Environmental hazards

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.

Precautionary statements

P codes for prevention, response, storage and disposal

Prevention

  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.

Response

  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P331Do not induce vomiting.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P391Collect spillage.

Storage

  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.

Disposal

  • P501Dispose of contents and container in accordance with local regulations.

First aid

General first aid measures. Get medical advice if you feel unwell

If inhaled
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.
Skin contact
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.
Eye contact
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.
If swallowed
DO NOT INDUCE VOMITING. Volatile chemicals have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. 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. IMMEDIATELY transport the victim to a hospital. 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.

Handling, storage and disposal

Summaries only, follow the supplier SDS for your grade

Safe handling

Fire: NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools. Prevent build-up of electrostatic charges (e.g., by grounding).

General: PREVENT GENERATION OF MISTS!

Inhalation: Use ventilation, local exhaust or breathing protection.

Skin: Protective gloves.

Eyes: Wear safety goggles or eye protection in combination with breathing protection.

Ingestion: Do not eat, drink, or smoke during work.

Storage

Fireproof. Provision to contain effluent from fire extinguishing. Separated from strong oxidants. Store in an area without drain or sewer access.

Disposal

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number U056, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste. SRP: Wastewater from contaminant suppression, cleaning of protective clothing/equipment, or contaminated sites should be contained and evaluated for subject chemical or decomposition product concentrations. Concentrations shall be lower than applicable environmental discharge or disposal criteria. Alternatively, pretreatment and/or discharge to a permitted wastewater treatment facility is acceptable only after review by the governing authority and assurance that "pass through" violations will not occur. Due consideration shall be given to remediation worker exposure (inhalation, dermal and ingestion) as well as fate during treatment, transfer and disposal.

Exposure limits and toxicity

Occupational exposure limits and toxicity data

OSHA PEL, 8-hour TWA
300 ppm (1050 mg/m³)
NIOSH REL, TWA
300 ppm (1050 mg/m³)
ACGIH TLV, 8-hour TWA
100 ppm
IDLH
1300 ppm (10% LEL)

Short-term exposure: The substance is mildly irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system. If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. Exposure could cause lowering of consciousness. Long-term exposure: Repeated or prolonged contact with skin may cause dryness and cracking and dermatitis.

Transport information

UN dangerous goods classification for road, sea and air

UN number
UN 1145
Transport hazard class
3
Packing group
II

Shipping rules depend on mode, quantity and packaging. Confirm the classification with the supplier SDS and your freight forwarder.

Supplier safety data sheets

SDS documents uploaded by suppliers who list this chemical

No supplier has uploaded an SDS for Cyclohexane yet. Suppliers usually send one with their quote. Request quotes

Safety questions

Quick answers about handling Cyclohexane safely

Is Cyclohexane hazardous?

Cyclohexane carries the GHS signal word "Danger". Main hazards: highly flammable liquid and vapour, may be fatal if swallowed and enters airways, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

Which GHS pictograms apply to Cyclohexane?

The GHS classification of Cyclohexane shows 4 pictograms: GHS02 (flammable), GHS07 (harmful or irritant), GHS08 (serious health hazard), GHS09 (hazardous to the environment).

What is the UN number of Cyclohexane?

Cyclohexane is transported under UN 1145, hazard class 3, packing group II. Check the supplier SDS and the current ADR, IMDG or IATA rules before shipping.

How should Cyclohexane be stored?

Fireproof. Provision to contain effluent from fire extinguishing. Separated from strong oxidants. Store in an area without drain or sewer access.

Where can I get the SDS for Cyclohexane?

Ask the supplier for the safety data sheet of the exact grade you buy. Suppliers on CompoundList can attach their SDS to listings and send it with a quote. This page is a GHS classification summary, not an SDS.

GHS classification summary, not an SDS. Always check the supplier's SDS. Last updated 7 Oct 2026. Report an error

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