Always wear goggles when preparing acid solutions
or when handling solutions.
If acids come in contact with the skin or eyes,
rinse immediately with large amounts of water, for
at least 15 minutes, and seek medical attention
particularly for acid splashes involving the eyes.
Under no circumstance should any base solution be
applied to the area where the acid contacted.
(b) Hydrogen Peroxide.
Handle 30 percent or stronger solutions of hydrogen
peroxide cautiously to prevent contaminating the
skin. Wash contaminated area thoroughly with
water. Do not use an acid to dilute or neutralize
a base on the skin. Use only large amounts of
Never handle mercury with the bare hands, and never
If mercury spill
heat it in an open container.
occurs, do not vacuum or sweep the area. This will
disperse mercury throughout the laboratory. Spills
may be cleaned up using a glass tube of about 6 cm
diameter drawn out to an opening of about 1 mm and
connected by rubber tubing to a filter flask
connected with a vacuum pump or aspirator, the
flask acting as a trap. Control of mercury vapor
should not be attempted with Flowers of Sulphur as
this is not effective. Spills must be reported to
the Environmental Science Officer providing ser-
vices to the unit.
(d) Chemical Containers.
1. Frequently check all chemical containers
having vent caps and make sure they are operable.
2. Keep containers of volatile liquids as cool
as possible. Remove caps or stoppers occasionally for venting, and
take care to gradually release any `pressure that may have developed.
3. Store heavy or bulky containers of chemicals
on the floor or as near the floor as possible.