|ACUTE HAZARDS / SYMPTOMS||PREVENTION||FIRST AID / FIRE FIGHTING|
|FIRE||Combustible.||NO open flames.||Use water spray, alcohol-resistant foam, carbon dioxide. NO powder.|
|EXPLOSION||Finely dispersed particles form explosive mixtures in air.||Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust.|
|EXPOSURE||STRICT HYGIENE! PREVENT DISPERSION OF DUST!|
|Inhalation||Burning sensation. Cough. Sore throat. Shortness of breath. Wheezing.||Use local exhaust or breathing protection.||Fresh air, rest. Half-upright position. Refer for medical attention.|
|Skin||Dry skin. Redness. Pain. See Notes.||See Notes. Protective clothing.||First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again.|
|Eyes||Redness. Pain. Burns.||Wear safety goggles or eye protection in combination with breathing protection if powder.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||Nausea. Abdominal pain. Burning sensation. Vomiting. Diarrhoea.||Do not eat, drink, or smoke during work.||Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. Refer for medical attention .|
|PACKAGING & LABELLING|
|Personal protection: face shield, thermal gloves, chemical protection suit and particulate filter respirator adapted to the airborne concentration of the substance. See Notes. Sweep spilled substance into covered containers.||
Do not transport with food and feedstuffs.
Symbol: C; R: 22-34-42/43; S: (2)-22-26-36/37/39-45
UN Hazard Class: 8; UN Pack Group: III
|EMERGENCY RESPONSE||SAFE STORAGE|
Transport Emergency Card: TEC (R)-80S2215-S.
NFPA Code: H3; F1; R1.
|Dry. Separated from strong oxidants, strong bases and food and feedstuffs.|
Physical State; Appearance
COLOURLESS OR WHITE CRYSTALS WITH PUNGENT ODOUR.
Occupational exposure limits
Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.
Effects of short-term exposure
Effects of long-term or repeated exposure
|PHYSICAL PROPERTIES||ENVIRONMENTAL DATA|
Boiling point: 202°C
Melting point: 53°C
Density: 1.5 g/cm³
Solubility in water: reaction
Vapour pressure, Pa at 25°C: 25
Relative vapour density (air = 1): 3.4
Flash point: 102°C c.c.
Auto-ignition temperature: 477°C
Explosive limits, vol% in air: 1.4-7.1
Reacts violently with fire extinguishing agents such as powder.
Depending on the degree of exposure, periodic medical examination is suggested.
The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential.
Anyone who has shown symptoms of asthma due to this substance should avoid all further contact with this substance.
Maleic anhydride is transported also as hot liquid (70°C); contact of the skin should be avoided.
The odour warning when the exposure limit value is exceeded is insufficient.
See Also: Toxicological Abbreviations