|METHYL ISOCYANATE||ICSC: 0004|
|CAS #: 624-83-9||Isocyanatomethane
Isocyanic acid, methyl ester
| UN #: 2480
| EINECS #: 210-866-3
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||Extremely flammable. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire. Vapour/air mixtures are explosive.||NO open flames, NO sparks and NO smoking. NO contact with water, acids, bases or oxidizing agents. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.||Use alcohol-resistant foam, dry sand, powder, carbon dioxide. NO hydrous agents. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. Combat fire from a sheltered position.|
|AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!|
|SYMPTOMS||ACUTE HAZARDS||FIRST AID|
|Inhalation||Cough. Laboured breathing. Shortness of breath. Sore throat. Vomiting.||Use ventilation, local exhaust or breathing protection.||Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.|
|Skin||MAY BE ABSORBED! Redness. Pain. Burning sensation.||Protective gloves. Protective clothing.||Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .|
|Eyes||Pain. Redness. Loss of vision.||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. Shock or collapse.||Do not eat, drink, or smoke during work. Wash hands before eating.||Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention .|
|SPILLAGE DISPOSAL||CLASSIFICATION & LABELLING|
|Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Ventilation. Remove all ignition sources. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Cautiously neutralize spilled liquid with caustic soda. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations.||
According to UN GHS Criteria
|Fireproof. See Chemical Dangers. Cool. Dry. Store only if stabilized. Store in an area without drain or sewer access.|
|METHYL ISOCYANATE||ICSC: 0004|
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|Occupational exposure limits|
TLV: 0.02 ppm as TWA; 0.06 ppm as STEL; (skin); (SEN).
MAK: 0.024 mg/m3, 0.01 ppm; peak limitation category: I(1); pregnancy risk group: D.
EU-OEL: 0.02 ppm as STEL
|This substance may be hazardous to the environment. Special attention should be given to aquatic organisms.|
|Reacts violently with fire extinguishing agents such as water.
Depending on the degree of exposure, periodic medical examination is suggested.
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.
Anyone who has shown symptoms of asthma due to this substance should avoid all further contact.
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.
The odour warning when the exposure limit value is exceeded is insufficient.
Do NOT take working clothes home.
Symbol: F+, T+; R: 12-24/25-26-37/38-41-42/43-63; S: (1/2)-26-27/28-36/37/39-45-63
|All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.|
See Also: Toxicological Abbreviations