Chemistry Houston County High School Lab Safety Chemistry Houston County High School

General Rules Ask Before Doing Be supervised at all times Notify teacher of injury, spill, or equipment damage No admittance in the stockroom NO HORSEPLAY!

Always read the instructions first!

STUDENT RESPONSIBILITIES

Know the location of all lab safety equipment

Fire Exit Not another convenient door If the fire is in the lab area If the fire is blocking the exit to the hall

Fire Extinguisher Location Type A, B, C When do you use one? Operation steps Pull the pin Aim at base of fire Squeeze trigger

Fire Blanket Location Materials used in blanket Burning lab partner Burning counter

Fume Hood Location When to use Door down and fan running when chemicals are present

First Aid Kit Location Contents Band-aids

Chemical Spill Bucket Location Contents When to use NOT A TRASH CAN!

WEAR ALL LAB SAFETY GEAR

Safety Goggles Location All labs involving heat, chemicals, glass, and dissection How to wear them Contact lenses / glasses

Rubber Aprons Location When to wear them

Appropriate lab dress Shoes Pants Old clothing Lab aprons

Chemical Corrosive Contact For eyes For skin For clothing Procedure of using shower

General Stuff ALWAYS wash your hands with soap and water when we are done with lab—NOT HAND SANITIZER Keep your hands away from your face You are responsible for washing your glassware, counter and other equipment Never eat, drink, or chew gum in the lab area Do not put paper, solids, or other trash in the sink

Working with Glassware Check for chips and cracks Clean and air dry Do not handle broken glass Handle glass tubing (including thermometers) with care Put glassware on table before pouring Do not carry reagent bottles to workstation Do not place hot glass on the counter

Heating in Lab Handle equipment with special tongs Crucible Beaker Test tube Keep hot pad out and available for the entire lab Nothing goes on the hot plate or in the flame except what is directed in lab

Burner Safety Extinguish flames before disassembling burner Do not leave flame unattended Do not reach over burner or heated materials Keep all combustibles away from the flames

Other Heating instructions Heat only in Pyrex or Kimax Glass Allow materials to cool before handling Do not put hot materials on the counter Do not cool glass with water Point test tubes away from people when heating

Working with chemicals Chemical no no’s Na, Ca, Hg, Mg Never mix chemicals unless directed Never taste chemicals Waft aromas Never add water to acid Flush chemical spills with water unless otherwise directed http://www.youtube.com/watch?v=92Mfric7JUc http://www.youtube.com/watch?v=ODf_sPexS2Q

Review What type of goggles should contact lens wearers use? When are goggles necessary for lab? If glass breaks in lab, what is the first thing you do?

Reagent Bottles Take what you need Do not return excess to stock bottle

Hazard Symbols Common hazard symbols

Other Hazard Symbols