Untitled Storyboard
טקסט Storyboard
- שקופית: 1
- (cough)
- this methanol The steam is too pungent! I feel dizzy...
- Methanol is volatile, easy to enter the human body through breathing, long-term exposure will lead to chronic poisoning.
- Smell bad
- Methanol vapor is toxic and inhalation can cause damage to the central nervous system and even blindness. Workers must wear protective gear!
- שקופית: 2
- RCOOH+R'OH--catalysts-- RCOOR'+H2O
- This is esterification! The carboxylic acid and alcohol form ester and water under the action of catalyst. This is a key step in how we make plastics and coatings.
- what is catalysts?
- Catalysts speed up the reaction rate, but traditional catalysts (such as sulfuric acid) are corrosive and can be harmful to worker health and the environment.
- שקופית: 3
- Acidic substances in wastewater (H+)Can lower the pH of the water and affect aquatic life. Volatile organic compounds (VOCs) in exhaust gases can form photochemical smog and exacerbate air pollution.
- Look, the waste water goes straight into the river and the fish die! Factory exhaust also makes the sky grey.
- What are we going to do?
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אין הורדות, אין כרטיס אשראי ואין צורך בכניסה כדי לנסות!
