DIKETENE | ICSC: 1280 (November 2019) |
But-3-en-3-olide 3-Buteno-beta-lactone 4-Methylene-2-oxetanone Acetyl ketene Vinylaceto-beta-lactone |
CAS #: 674-82-8 |
UN #: 2521 |
EC Number: 211-617-1 |
ACUTE HAZARDS | PREVENTION | FIRE FIGHTING | |
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FIRE & EXPLOSION | Flammable. Above 33°C explosive vapour/air mixtures may be formed. Risk of fire and explosion on contact with acids, bases or water. | NO open flames, NO sparks and NO smoking. NO contact with acids, bases or water. Above 33°C use a closed system, ventilation and explosion-proof electrical equipment. | Use carbon dioxide, dry sand. NO hydrous agents. NO water. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. |
PREVENT GENERATION OF MISTS! | |||
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SYMPTOMS | PREVENTION | FIRST AID | |
Inhalation | Cough. Sore throat. | Use ventilation, local exhaust or breathing protection. | Fresh air, rest. Refer for medical attention. |
Skin | Redness. Pain. | Protective gloves. Protective clothing. | Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention if skin irritation occurs. |
Eyes | Redness. Pain. | Wear safety goggles 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 | See Inhalation. | Do not eat, drink, or smoke during work. | Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . |
SPILLAGE DISPOSAL | CLASSIFICATION & LABELLING |
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Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. NEVER direct water jet on liquid. |
According to UN GHS Criteria WARNING
Flammable liquid and vapourHarmful if swallowed or if inhaled Transportation |
STORAGE | |
Separated from acids, bases and food and feedstuffs. Well closed. Fireproof. Cool. Dry. Store only if stabilized. | |
PACKAGING | |
Do not transport with food and feedstuffs. Transport only if stabilized. |
DIKETENE | ICSC: 1280 |
PHYSICAL & CHEMICAL INFORMATION | |
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Physical State; Appearance
Physical dangers
Chemical dangers
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Formula: C4H4O2 |
EXPOSURE & HEALTH EFFECTS | |
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Routes of exposure
Effects of short-term exposure
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Inhalation risk
Effects of long-term or repeated exposure
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OCCUPATIONAL EXPOSURE LIMITS |
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ENVIRONMENT |
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See Notes. |
NOTES |
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Data are insufficiently available on the effect of this substance on human health, therefore utmost care must be taken. Insufficient data are available on the effect of this substance on human health and environment. An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. |
ADDITIONAL INFORMATION | ||
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EC Classification |
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