SAFETY INSTRUCTIONS Maintain a clean, open work area, free of the everything wear a lab apron and safety goggles whenever working with chemicals, hot liquids, lab burners, hot places Keep your hands away from the sharp of pointed ends of equipment such as scalpels, scissors Never smell substances in the laboratory without specific instructions
SAFETY INSTRUCTIONS Never eat, drink, chew gum and touch or taste substances in the laboratory If you witness an accident or a chemical spill, report it to your teacher immediately Use materials only from containers that are labeled with the name of the chemical and that describe the precautions to be used When diluting acid with water always add acid to water
SAFETY INSTRUCTIONS Never return unused chemicals to the stock bottles Clean up thoroughly. Dispose of chemicals and wash used glassware and instruments according to the teacher’s instructions Clean table and sinks put away all equipment and supplies Make sure all water, gas jets, burners, and electrical appliances are turned off
SAFETY INSTRUCTIONS Return all laboratory materials and equipment to their proper place Wash your hands after handling or hazardous materials and before leaving the laboratory Never run, push or practical jokes of any kind in the laboratory Use laboratory materials and equipments only as directed
SAFETY INSTRUCTIONS Always handle flammable liquids with great care and keep them away from naked flames. Always handle concentrated acids and alkalis with great care. Report all accidents and breakage to your teacher. If any chemicals get onto your skin or clothing, wash the affected area with a large amount of water and then report it to your teacher.
SAFETY INSTRUCTIONS Always adjust the Bunsen burner to give a luminous flame when not using it (or just simply turn it off). Always tie up your tie or long hair. Always wash hands after experiments.
FIRST AID IN A CHEMISTRY LABORATORY CUTS: Washing them with water would certainly be wrong. In this case disinfecting with alcohol is needed. Unknown substances that might have entered the wound must be extracted with the help of a doctor. Wounds must be bandaged with a clean handkerchief of a bandage. Mark that cotton wool must not be used.
FIRST AID IN A CHEMISTRY LABORATORY EYE BURNS: Eyes must be kept open and washed with running water. If necessary boric acid may be used for this purpose. SKIN BURNS: First of all, burnt area must be immediately washed with cold water and diluted solution of Na2CO3 and then the emulsion of olive oil-lime water is spread over it. Finally, sterilized bandage is put on the burn.
ACID-BASE BURNS: Firstly, burn is washed with much water. If it is an acid burn, it is washed with 1%Na2CO3; if it is a base burn 1% acetic or boric acid is used. After these, Vaseline is spread over the burn. FIRST AID IN A CHEMISTRY LABORATORY