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Paraffins, waxes and cycloalkanes

Decalin safety data

GHS hazards, precautions, first aid, handling and transport for Decalin. A classification summary, not a safety data sheet.
CAS 91-17-8Formula C10H18

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
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
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
210
NFPA 704 rating
health, fire, reactivity

Hazard classes and categories

  • Flam. Liq. 3
  • Asp. Tox. 1
  • Skin Corr. 1
  • Eye Dam. 1
  • Acute Tox. 3 (inhalation)
  • Acute Tox. 4 (inhalation)
  • Aquatic Acute 1
  • Aquatic Chronic 1
  • Aquatic Chronic 2

Hazard statements

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

Physical hazards

  • H226Flammable liquid and vapour.

Health hazards

  • H304May be fatal if swallowed and enters airways.
  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
  • H331Toxic if inhaled.
  • H332Harmful if inhaled.

Environmental hazards

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
  • H411Toxic 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.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • 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.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • 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.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P331Do not induce vomiting.
  • P363Wash contaminated clothing 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
Remove to fresh air.
Skin contact
Wash with water and mild soap.
Eye contact
Flush with water for at least 15 min.
If swallowed
Give emetic such as warm salt water, followed by a mild cathartic, direct physician to conserve liver and kidney function.

Handling, storage and disposal

Summaries only, follow the supplier SDS for your grade

Safe handling

Fire: NO open flames, NO sparks and NO smoking. Above 57 °C use a closed system, ventilation and explosion-proof electrical equipment. 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. Protective clothing.

Eyes: Wear face shield or eye protection in combination with breathing protection.

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

Storage

Fireproof. Separated from oxidants. Cool. Keep in the dark. Well closed.

Exposure limits and toxicity

Occupational exposure limits and toxicity data

Short-term exposure: The substance is corrosive to the skin and eyes. The vapour is irritating to the 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. Long-term exposure: Repeated or prolonged contact with skin may cause dermatitis.

Transport information

UN dangerous goods classification for road, sea and air

UN number
UN 1147
Transport hazard class
3
Packing group
III

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 Decalin yet. Suppliers usually send one with their quote. Request quotes

Safety questions

Quick answers about handling Decalin safely

Is Decalin hazardous?

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

Which GHS pictograms apply to Decalin?

The GHS classification of Decalin shows 6 pictograms: GHS02 (flammable), GHS05 (corrosive), GHS06 (acute toxicity (severe)), GHS07 (harmful or irritant), GHS08 (serious health hazard), GHS09 (hazardous to the environment).

What is the UN number of Decalin?

Decalin is transported under UN 1147, hazard class 3, packing group III. Check the supplier SDS and the current ADR, IMDG or IATA rules before shipping.

How should Decalin be stored?

Fireproof. Separated from oxidants. Cool. Keep in the dark. Well closed.

Where can I get the SDS for Decalin?

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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