Before doing an experiment with sulfur dioxide, you look up some safety informat

Question

Before doing an experiment with sulfur dioxide, you look up some safety information. Answer the questions below, and state what information you used to answer the question. a. Is sulfur dioxide a solid, liquid or gas at room temp? How do you know? b. Is sulfur dioxide a fire hazard? How do you know? c. Is sulfur dioxide a health hazard? How do you know? d. Is there a risk of sulfur dioxide reacting with something else? How do you know? e. Based upon the information here, what precautions should be used and why should they be used when working with sulfur dioxide in the laboratory?

Explanation / Answer

(a)

SO2 is a gas at room temperature, because its boiling point is -100C, which is far below the room temperature.

(b)

SO2 is not a fire hazard, because it is not combustible.

(c)

SO2 is health hazard, because it is extremely toxic and highly irritating gas.

(d)

There is a risk of SO2 reacting with water and forming sulfuric acid, which is a highly corrosive acid and causes chemical burns.

(e)

It should be handled with care. It is colorless so it's leakage can only be depicted by its peculiar pungent small.

Its vapors should not be exposed to humid environment.

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