LABORATORY SAFETY Chemical Hazard Label SDS Rules in a Lab 1.Conduct yourself in a responsible manner at all times in the lab. No horseplay, practical jokes, or pranks allowed. 2.Follow all written and verbal instructions carefully. Ask me if you do not understand any part of the procedure. 3.Never work in the lab in the lab without your teachers present. 4.Do not eat, drink, or chew gum during a lab investigation. 5.Never do anything that is not called for in the laboratory procedures or by your teacher. Carefully follow all instructions. 6.Be prepared for your work in the laboratory. Read all procedures thoroughly before entering the lab. 7.Work areas should be kept neat at all times. 8.Keep aisles clear. Push your stool under the table when not in use. Rules in a Lab 9.Know the location of all safety equipment. Know where the exits are. 10.Dispose all chemical waste properly, according to my direction. 11.Wash your hands with soap and water after performing each experiment. 12.Anytime heat, chemicals, or glassware are used, students must wear laboratory goggles. 13.Please inform your teacher if your wear contact lenses. 14.Report any accident or spill to me immediately. 15.Check the label on chemical bottles twice before removing any of the contents. 16.Always add acid to water when diluting. Rules in a Lab 17.Never handle broken glass with your bare hands. 18.Handle glass that has been heating with great care. Remember: hot glass looks like cold glass. 19.Never use chipped or cracked glassware. 20.Do not immerse hot glassware in cold water. It may shatter. 21.Exercise extreme caution when using a gas burner. Take care that hair, clothing and hands are a safe distance from the flame at all times. Do not put anything in the flame unless instructed to do so! 22.Never leave a lit burner unattended. Always turn the burner/ hot plate off when not in use. 23.Do not point the open end of test tube being heated toward yourself or anyone else. Never look into a container that is being heated. 24.Determine if an object is too hot to touch by bringing it close, but not touching, the back of your hand. If you feel heat radiating, allow it to cool for a longer period of time. Answers on next slide Match the equipment to its name: Word bank: a)erlenmeyer flask, b)volumetric flask, c)beaker, d)ringstand, e)funnel, f)wash bottle, g)crucible tongs, h)test tube tongs, i)test tubes, j)clay triangle, k)graduated cylinder, l)volumetric pipet, m)evaporating dish, n)buret, o)watch glass, p)bunsen burner,q)crucible Match the equipment to its name: Word bank: a)erlenmeyer flask, b)volumetric flask, c)beaker, d)ringstand, e)funnel, f)wash bottle, g)crucible tongs, h)test tube tongs, i)test tubes, j)clay triangle, k)graduated cylinder, l)volumetric pipet, m)evaporating dish, n)buret, o)watch glass, p)bunsen burner,q)crucible q m o b n l i ch f j a pk d e g NFPA CHEMICAL HAZARD LABEL HEALTH SPECIAL REACTIVITY (STABILITY) FLAMMABILITY NFPA CHEMICAL HAZARD LABEL Least Serious 4 Most Serious 40 Flammable vapor which burns readily Substance is stable NFPA CHEMICAL HAZARD LABEL Avoid water. May detonate with heat or ignition. Severe health risk. Burns readily. Diborane NFPA CHEMICAL HAZARD LABEL SDS Safety Data Sheet On file for all purchased chemicals. Includes all information shown on a chemical label and more. Same format is used by all chemical companies. SDS Pictograms Safety Data Sheets PRACTICE TIME!! Danger What signal word is used to describe acetone? Flame and Exclamation Point What pictograms are present on the SDS? Colorless liquid. Sweet pungent odor. Describe acetone. (smell, appearance, etc) High flammable Is acetone.Not flammable, slightly flammable, or highly flammable? Dimethyl ketone & 2-Propanone What other names is acetone known as? Yes Does acetone exhibit any narcotic effect? Remove to fresh air & keep at rest What should you do for a person who has inhaled too much acetone? Rinse cautiously with water for several minutes If you get acetone in your eye, what action should you take? NO!!!!! If swallowed, should you induce vomiting? Tri-class dry chemical In case of fire, what type of fire extinguisher should be used? Contained with sand; place in sealed bag If acetone is accidently spilled, how should it be contained and cleaned? Organic #4 In what cabinet should acetone be stored? YES!!!! When using acetone, should a person wear safety goggles? Float on water If the density of water is 1.0 g/mL, will acetone float on water or will it sink if poured into water? Liver, Kidneys, Central Nervous System If you ingest acetone, what bodily organs are most affected? 3 What is the fire hazard for acetone? 0 What is the reactivity hazard for acetone?