Before doing an experiment with sulfur dioxide, you look up some safety nation A
ID: 534640 • Letter: B
Question
Before doing an experiment with sulfur dioxide, you look up some safety nation Answer the questions below, and state what information you used to answer the ion. 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. Sulphur dioxide has a boiling point of -10 °C, which is below room temperature. Its boiling point is low because it doesn't have any hydrogen atom, thus there is no hydrogen bonding (strongest intermolecular forece) between the atoms. So we classify sulphur dioxide as a gas.
b. Fire hazard : Sulphur dioxide is non flammable. However, heat from a surrounding fire can rupture vessels causing a dangerous explosion and release of toxic sulphur dioxide gas. Water should never be sprayed at or into a tank or system which is leaking sulphur dioxide. The presence of water causes sulphur dioxide to be very corrosive, and water directed into a tank would also increase the venting rate.
This information comes from a Material Safety Data Sheet (MSDS) which contains information on the potential hazards (health, fire, reactivity and environmental) and how to work safely with the chemical product.
c. Health hazard: Inhalation of this gas causes severe irritation of the nose and throat, also irritates or burns the eyes. At high concentrations: can cause life-threatening accumulation of fluid in the lungs (pulmonary edema) and a long-lasting condition like asthma. This information comes from MSDS.
d. Reactivity: Stable under conditions of normal use. SO2 is extremely stable to heat even up to 2000°C. Forms a moderately acidic solution on contact with moisture in the atmosphere. Moist SO2 gas is corrosive to most common metals but anhydrous SO2 is not corrosive to mild steel or aluminum.
e. Precautions: Avoid breathing gas.Use only outdoors or in a well- ventilated area. Store in a well- ventilated place. Keep container tightly closed. Wear protective gloves, protective clothing, eye and face protection when handling liquid SO2. Dispose of containers/contents according to local waste disposal regulations. IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a poison centre/doctor. IF IN EYES: Rinse continuously with water for several minutes or call doctor.
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