UNCONTROLLABLE OR VIOLENT REACTIONS :

1. Small reactions may be quenched by the laboratory worker.
2. Removing heat or a source of energy will stop many reactions.
3.  Some reactions may need to be quenched by cooling, adding another reagent, and simply by allowing the reaction to proceed to completion. If the lab worker can control the reaction this way, there is no need to proceed further.
4. If a reeaction must be abandoned, close the sash on the fume hood, shut off all energy sources, and leave immediately - evacuate the laboratory.
5. Be prepared to evacuate the floor if toxic vapors or fire spreads.
6.  Immediately notify a professor and the Chemical Hygiene Officer.
7. If a large fire occurs, call the fire department. Be prepared to advise the dispatcher that hazardous materials are involved.