|METHACRYLIC ACID||ICSC: 0917|
|CAS #: 79-41-4|
| UN #: 2531 (stabilized)
|EC Number: 201-204-4
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Above 77°C explosive vapour/air mixtures may be formed.||NO open flames. Above 77°C use a closed system and ventilation.||Use AFFF, alcohol-resistant foam, powder, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.|
|AVOID ALL CONTACT!|
|Inhalation||Cough. Burning sensation. Shortness of breath. Laboured breathing.||Use ventilation (not if powder), local exhaust or breathing protection.||Fresh air, rest. Half-upright position. Refer for medical attention.|
|Skin||Redness. Skin burns. Pain. Blisters.||Protective clothing.||First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again.|
|Eyes||Redness. Pain. Loss of vision. Severe deep burns.||Wear face shield.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||Abdominal cramps. Abdominal pain. Burning sensation. Weakness.||Do not eat, drink, or smoke during work. Wash hands before eating.||Rinse mouth. Rest. Refer for medical attention .|
|SPILLAGE DISPOSAL||CLASSIFICATION & LABELLING|
|Collect leaking and spilled liquid in sealable plastic containers as far as possible. Cautiously neutralize remainder with aqueous sodium carbonate or lime. Then wash away with plenty of water. Do NOT absorb in saw-dust or other combustible absorbents. Personal protection: complete protective clothing including self-contained breathing apparatus.||
According to UN GHS Criteria
|Separated from strong oxidants and food and feedstuffs. Cool. Keep in the dark. Keep in a well-ventilated room. Store only if stabilized.|
|Do not transport with food and feedstuffs.|
|METHACRYLIC ACID||ICSC: 0917|
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
Formula: C4H6O2 / CH2=C(CH3)COOH
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|OCCUPATIONAL EXPOSURE LIMITS|
TLV: 20 ppm as TWA.
MAK: 180 mg/m3, 50 ppm; peak limitation category: I(2); pregnancy risk group: C
|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 are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered.
An added stabilizer or inhibitor can influence the toxicological properties of this substance; consult an expert.
Symbol: C; R: 21/22-35; S: (1/2)-26-36/37/39-45; Note: D
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