Laboratory Incident - Highly Reactive Material
A laboratory incident occurred at the Newark campus
which can serve as an educational opportunity for safety committees to
share with their departments.
A student was working in a laboratory on a Saturday afternoon,
conducting an experiment whose procedure was loosely taken from a
published paper. The procedure involved using some highly reactive
materials within a fume hood. However, the published experiment
recommended pre-distilling the materials, which was not performed as part
of the experimental protocol. As a result, when the materials were heated,
a reaction occurred that resulted in an explosion. The explosion
shattered the glass reaction vessel and splattered its contents, along with
the contents of a hot mineral oil bath which was heating the vessel.
At the time of the explosion, the student had just opened the
vertical hood sashes to manipulate a thermometer. The student was hit
with the splattered material and received burns to their face.
Fortunately, the student was wearing safety glasses, which prevented
damage to their eyes. The student also had a friend in the laboratory who
was able to assist them after the incident by calling Public Safety. The
student was able to extinguish the resulting fire in the fume hood with a
fire extinguisher.
The lessons to be learned from this incident are as follows: (you
may be able to identify others as well.)
- Never work alone when performing potentially hazardous
experimental procedures.
- Always have experimental protocols reviewed and approved by your
research advisor and/or Chemical Hygiene Officer.
- Whenever possible, keep hood sashes, shields, etc. positioned to
protect you. Carefully design experimental procedures and equipment such
that minimal manipulation is required. This will significantly reduce the
risk of potential exposures and hazards.
In this specific incident, an equipment support apparatus was
positioned too far inside of the hood. Any necessary adjustments could
not have been made to this apparatus without leaning into the hood.
Leaning into a hood when an experiment is in progress potentially exposes
the person to chemical and physical hazards. This kind of problem should
be addressed in the planning stages of the experiment.
- Always wear personal protective equipment. A face shield in this
instance would have protected the face from burns.
- Keep additional quantities of chemicals stored in their proper
location.
This lab had multiple bottles of chemicals left on the laboratory
benches. Had the fire not been quickly extinguished, the fuel load in the
laboratory would have created a very difficult fire to extinguish.