|METHYLAL||ICSC: 1152 (April 2017)|
| CAS #: 109-87-5
| UN #: 1234
|EC Number: 203-714-2
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||Highly flammable. Heating will cause rise in pressure with risk of bursting. Vapour/air mixtures are explosive. Risk of fire and explosion on contact with strong oxidizing agents or strong bases.||NO open flames, NO sparks and NO smoking. NO contact with strong oxidizing agents or strong bases. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.||Use water spray, dry powder, carbon dioxide, alcohol-resistant foam. In case of fire: keep drums, etc., cool by spraying with water.|
|Inhalation||Cough. Dizziness. Drowsiness. Headache. Sore throat. Unconsciousness.||Use ventilation, local exhaust or breathing protection.||Fresh air, rest. Refer for medical attention.|
|Skin||Dry skin.||Protective gloves.||First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again.|
|Eyes||Redness. Pain.||Wear safety spectacles.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|Ingestion||Abdominal pain. Nausea. Vomiting. Further see Inhalation.||Do not eat, drink, or smoke during work.||Rinse mouth. Do NOT induce vomiting. Refer for medical attention .|
|SPILLAGE DISPOSAL||CLASSIFICATION & LABELLING|
|Consult an expert! Personal protection: filter respirator for organic vapours of low boiling point adapted to the airborne concentration of the substance. Remove all ignition sources. Cover the spilled material with sand or other non-combustible material. Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.||
According to UN GHS Criteria
Highly flammable liquid and vapour
Causes eye irritation
May cause drowsiness or dizziness
|Fireproof. Separated from strong oxidants and strong bases. Cool. Keep in the dark. Well closed. Store only if stabilized. Store in an area without drain or sewer access.|
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
Formula: C3H8O2 / CH2-(OCH3)2
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|OCCUPATIONAL EXPOSURE LIMITS|
TLV: 1000 ppm as TWA.
MAK: 1600 mg/m3, 500 ppm; peak limitation category: II(2); pregnancy risk group: C
|Environmental effects of the substance have been adequately investigated, but no significant effects have been found.|
|An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Check for peroxides prior to distillation; eliminate if found.
Methylal is metabolized to methanol and formaldehyde and may exhibit the same toxic reactions as these compounds.
See ICSCs 0057 and 0275.
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