Science Saftey

• Avoid chemical contact with the skin
• Do not pour chemicals out of unmarked containers
• Dangerous to mix the wrong chemical or to mix them in the wrong order
• Always add concentrated acid to water to dilute it
• Put hand over the label when pouring from a bottle to keep the liquid from making it unreadable
• Work with harmful, volatile chemicals under the fume hood
• It's not okay to put broken glass into the waste basket
• Spilled chemicals can be cleaned (absorbed) with kitty litter
• Check rubber hose for cracks
• Ensure the hose fits securely
• The proper flame for a Bunsen Burner is blue
• When using a match, light the burner from the side
• A yellow flame needs less oxygen
• Glassware with cracks or "stars" should not be used
• Never heat a liquid in a closed container
• False: Lab thermometers do not need to be shaken down like medical thermometers
• The 600° Bunsen Burner flame will break a thermometer
• Most chemical reactions in the lab take place between 120° and -20°
• Lubricate the tubing before inserting a glass tube into a rubber stopper by hand
• To prevent a centrifuge from vibrating, balance it using equally filled test tubes in opposite positions
• Baggy long sleeves can be dangerous in the chemistry lab
• Synthetic materials for clothes are hazardous because they can readily burn or melt and stick to the skin
• Tie back loose, long hair during a lab
• True: Goggles must be worn to protect the eyes during lab work
• Fooling around is not allowed in the lab
• True: Eating and drinking are not allowed in the lab
• If chemicals get into one's eyes, wash the eyes for 15 minutes
• To put out clothing that catches fire, use the emergency shower, stop, drop and roll, or smother it with a fire blanket