An individual in your lab is working with a Pyrex beaker containing 500 ml of ca

Question

An individual in your lab is working with a Pyrex beaker containing 500 ml of carbon disulfide (Class IB flammable liquid; flash point = -22 deg. F; OSHA PEL = 20 ppm TWA) and with 1.5 liter of 12.0 M hydrochloric acid in a 2L Erlenmeyer flask. Carbon disulfide vapors are heavier than air and they traveled from the open beaker along the benchtop and were ignited by a spark from an electric motor that is operating nearby. The burning vapors flashed back and ignited the material in the beaker. The burning CS2 ignited other combustible materials in the area and the fire is spreading. In a panic, your co-worker accidentally knocked over the flask of acid solution and it crashed to the floor and shattered, splashing HCl all over the pants and shoes of the individual. In the box below, please describe: (1) What hazards are present? (2) What do you think is the FIRST thing you should do to help? Second? Third? Fourth? (3) What actions would to take to mitigate/eliminate EACH of the hazards you identifed in part (1)?

Explanation / Answer

In case of this accident the first thing is to be done is evacuate the area.

evacuate all personnel. contact the faety people.

(1) Hazards - vapors of both CS2 and HCl are highly hazardous and flammable.

(2) In case of this accident the first thing is to be done is evacuate the area.

evacuate all personnel. contact the faety people.

Use anti-flammant material like sand to stop the fire immediately.

Consult the physician for the affected prople.

(3) Use sand to reduce and extinguish the flame. The studetn on whom splashing happened, must take safety shower and consult the doctor immediately.

Try the fire not be able to reach any other flammable materials in lab like solvent, etc.

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