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Butanone, also known as methyl ethyl ketone (MEK) or ethyl methyl ketone, [a] is an organic compound with the formula CH 3 C(O)CH 2 CH 3. This colorless liquid ketone has a sharp, sweet odor reminiscent of acetone. It is produced industrially on a large scale, but occurs in nature only in trace amounts. [7]
Because of the diversity of industrial uses for denatured alcohol, hundreds of additives and denaturing methods have been used. The main additive usually is 10% methanol (methyl alcohol), hence the name methylated spirits. Other common additives include isopropyl alcohol, acetone, methyl ethyl ketone, and methyl isobutyl ketone. [1]
Polystyrene cement/Butanone/methyl ethyl ketone (MEK) dissolves polystyrene it is volatile Vapour is heavier-than-air and explosive. Toxic, neuropsychological effects. Rapidly absorbed through undamaged skin and lungs. Produces toxic ozone. [2] Dichloromethane: Dissolves: Polycarbonate
Methyl ethyl ketone 0.805 2-Butanol 0.808 Isoamyl alcohol 0.809 1-Butanol ... often with harmful long-term health effects such as neurotoxicity or cancer.
The use of personal protective equipment may substantially reduce the risk of adverse health effects from contact with hazardous materials. [2] Long-term exposure to chemical hazards such as silica dust, engine exhausts, tobacco smoke, and lead (among others) have been shown to increase risk of heart disease, stroke, and high blood pressure. [3]
Long-term outcomes may include blindness and kidney failure. [1] Blindness may occur after drinking as little as 10 mL; death may occur after drinking quantities over 15 mL (median 100 mL, varies depending on body weight). [1] [4] Methanol poisoning most commonly occurs following the drinking of windshield washer fluid. [2]
Some severe side effects with long-term consequences may include pancreatitis, acute kidney injury, gallstones, gallbladder disease, diabetic retinopathy, and an increased heart rate. Semaglutide ...
The TLV is defined as the maximum concentration in air which can be breathed by a normal person — i.e. excluding children, pregnant women, etc. — in the course of a typical American work week of 40 hours, day-after-day through their work life without long-term ill effects.