|ACUTE HAZARDS / SYMPTOMS||PREVENTION||FIRST AID / FIRE FIGHTING|
|FIRE||Highly flammable. Many reactions may cause fire or explosion.||NO open flames, NO sparks and NO smoking. NO contact with oxidizing agents or incompatible substances. See Chemical Dangers.||Use water spray, powder, alcohol-resistant foam, carbon dioxide.|
|EXPLOSION||Vapour/air mixtures are explosive.||Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.||In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.|
|EXPOSURE||PREVENT GENERATION OF MISTS! STRICT HYGIENE!||IN ALL CASES CONSULT A DOCTOR!|
|Inhalation||Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed. See Notes.||Use ventilation, local exhaust or breathing protection.||Fresh air, rest. Refer for medical attention. Half-upright position. Artificial respiration may be needed.|
|Skin||Redness. Burning sensation. Pain.||Protective gloves. Protective clothing.||Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .|
|Eyes||Redness. Pain. Severe deep burns.||Wear face shield or eye protection in combination with breathing protection.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||Abdominal pain. Burning sensation. Diarrhoea. Nausea. Vomiting.||Do not eat, drink, or smoke during work. Wash hands before eating.||Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .|
|PACKAGING & LABELLING|
|Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Ventilation. Remove all ignition sources. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.||
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Symbol: F, T+, N; R: 11-24/25-26-37/38-41-48/22-50-68; S: (1/2)-26-28-36/37/39-45-61
UN Hazard Class: 6.1; UN Subsidiary Risks: 3; UN Pack Group: I
|EMERGENCY RESPONSE||SAFE STORAGE|
Transport Emergency Card: TEC (R)-61GTF1-I.
NFPA Code: H4; F3; R2.
|Fireproof. Separated from food and feedstuffs. See Chemical Dangers. Cool. Keep in the dark. Well closed. Store only if stabilized.|
Physical State; Appearance
COLOURLESS LIQUID WITH PUNGENT ODOUR. TURNS PALE YELLOW ON EXPOSURE TO LIGHT AND AIR.
Occupational exposure limits
Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion.
Effects of short-term exposure
Effects of long-term or repeated exposure
|PHYSICAL PROPERTIES||ENVIRONMENTAL DATA|
Boiling point: 104°C
Melting point: -76.5°C (trans), -69°C (cis)
Relative density (water = 1): 0.85
Solubility in water, g/100ml at 15-18°C:
Vapour pressure, kPa at 20°C: 4.0
Relative vapour density (air = 1): 2.41
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.06
Flash point: 13°C o.c.
Auto-ignition temperature: 232.2°C
Explosive limits, vol% in air: 2.1-15.5
Octanol/water partition coefficient as log Pow: 0.63
|The substance is toxic to aquatic organisms.|
The occupational exposure limit value should not be exceeded during any part of the working exposure.
Rinse contaminated clothes (fire hazard) with plenty of water.
Check for peroxides prior to distillation; eliminate if found.
Crotonaldehyde is stabilized with water.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation is therefore essential.
See Also: Toxicological Abbreviations Crotonaldehyde (IARC Summary & Evaluation, Volume 63, 1995)