|Methyl n-butyl ketone|
n-Butyl methyl ketone
| CAS #: 591-78-6|
| UN #: 1224
|EC Number: 209-731-1
|ACUTE HAZARDS||PREVENTION||FIRE FIGHTING|
|FIRE & EXPLOSION||Flammable. Above 23°C explosive vapour/air mixtures may be formed.||NO open flames, NO sparks and NO smoking. Above 23°C use a closed system, ventilation and explosion-proof electrical equipment.||Use alcohol-resistant foam, powder, carbon dioxide. In case of fire: keep cylinder cool by spraying with water.|
|Inhalation||Cough. Drowsiness. Headache. Nausea. Sore throat.||Use ventilation, local exhaust or breathing protection.||Fresh air, rest. Refer for medical attention.|
|Skin||MAY BE ABSORBED! Dry skin.||Protective gloves. Protective clothing.||Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .|
|Eyes||Redness. Pain. Blurred 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. Diarrhoea. Sore throat. 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|
|Personal protection: self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.||
According to UN GHS Criteria
|Fireproof. Separated from strong oxidants.|
|PHYSICAL & CHEMICAL INFORMATION|
Physical State; Appearance
Formula: C6H12O / C4H9COCH3
|EXPOSURE & HEALTH EFFECTS|
Routes of exposure
Effects of short-term exposure
Effects of long-term or repeated exposure
|OCCUPATIONAL EXPOSURE LIMITS|
TLV: 5 ppm as TWA; 10 ppm as STEL; (skin); BEI issued.
MAK: 21 mg/m3, 5 ppm; peak limitation category: II(8); skin absorption (H)
|Use of alcoholic beverages enhances the harmful effect.
MBK potentiates the toxicity of some other chemical substances like chloroform, carbon tetrachloride, ethanol.
Depending on the degree of exposure, periodic medical examination is suggested.
Symbol: T; R: 10-48/23-62-67; S: (1/2)-36/37-45
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