2. LABORATORY SAFETY Wear the correct laboratory attire (lab. gown, safety goggles and mask) Avoid chemical spills on your working area.

3. LABORATORY SAFETY In smelling chemicals waft the vapors towards your face. Never sniff vapors directly. In removing the stoppers of reagent bottles hold it with between your fingers. NEVER put it down on the working table.

4. LABORATORY SAFETY Segregate chemicals by compatibility groups for storage. Wash hands before leaving laboratory. Never mouth pipette anything in the lab.

5. FIRST AID FIRES Small fires – wet towels; sand Clothes on fire – safety blanket; stop, drop and roll Building on fire – keep calm; go to the nearest fire exit

6. FIRST AID SKIN CUTS – water; press blood; tincture of iodine (fresh wound only); sterile gauze/medicated band-aid

7. FIRST AID SOLUTIONS/CHEMICALS a) Acid in eyes – wash with water; 2% solution of NaHCO 3 ; sterile gauze/cotton; olive oil b) any solution- water; saturated solution of boric acid; sterile gauze; olive oil

8. FIRST AID Minor burns – COLD water; boric ointment or sterile petroleum jelly ALKALI burns – large amt of water; 5% solution acetic acid; boric ointment/petroleum jelly

9. FIRST AID ACID burns – running water; saturated solution of NaHCO 3 for 20 mins.; wash with water; sterile gauze Heat burns – water; Vaseline burnt ointment

10. FIRST AID FAINTING – lie down victim (head in level with his body); loosen tight clothing; aromatic spirit of ammonia

11. Laboratory Equipments Things that you will use in the Chemistry Laboratory.

12. BURET / BURETTE A glass tube with fine gradations and a stopcock at the bottom, used especially for accurate fluid dispensing and measurement.

13. BURET / BURETTE CLAMP This metal tool attaches to a ring stand to hold a single burette, test tube, flask, etc.

14. DESSICATOR are sealable enclosures containing desiccants used for preserving moisture- sensitive items. desiccantsmoisture use for desiccators is to protect chemicals which are hygroscopic or which react with water from humidity. hygroscopichumidity

15. THISTLE TUBE a piece of laboratory glassware consisting mostly of a shaft of tube, with a reservoir and funnel-like section at the top.laboratory glasswarereservoirfunnel used by chemists to add liquid to an existing system of apparatus.chemists it allows insertion through a small hole present in some stoppers, permitting the tube to be inserted into a flask, such as an Erlenmeyer flask. stoppersflaskErlenmeyer flask

16. FUME HOOD A laboratory equipment used to limit a person's exposure to hazardous and/or unpleasant fumes.

17. SEPARATORY FUNNEL s a laboratory glassware used in liquid-liquid extractions to separate (partition) the components of a mixture between two immiscible solvent phases of different densities liquid-liquid extractions immisciblesolvent densities

18. CRUCIBLE a heat-resistant container in which materials can be heated to very high temperatures.

19. NICHROME WIRE Used because of its ability to withstand the high temperatures

20. BUNSEN BURNER produces a single open gas flame, which is used for heating, sterilization, and combustion.flame

21. TIRRIL BURNER Used for heating materials or substances

22. MEKER BURNER laboratory gas burner that has: a) constriction in the tube b) grid at the top of the burner the flame of burning gas to consist of a number of short blue inner cones and a large single outer cone and to be hotter generally than the flame of a Bunsen burner

23. C CLAMP Used for gripping variously shaped work pieces in varying positions.

24. UTILITY CLAMP When attached to the ring stand, this clamp is used to hold a large test tube or Florence flask above the lab table.

25. RING CLAMP They come in several sizes and have a multitude of uses: supporting a glass funnel in filtration, support for a gauze which in turn holds a beaker or flask.

26. ERLENMEYER FLASK Used to hold liquids and carry out chemical reactions. It is not used when accurate measurements are required.

27. FLORENCE FLASK Also known as a boiling flask. It can be used as a container to hold solutions of chemicals. It is designed for uniform heating and ease of swirling.

28. BEAKERS Used to hold and liquids. If graduated, it can serve to make approximate measurements of liquid volume.

29. GRADUATED CYLINDER Used to accurately measure out volumes of objects

30. VOLUMETRIC FLASK used in analytical chemistry for the preparation of solutions.analytical chemistry solutions used for making up solutions to a known volume.

31. REAGENT BOTTLES A glass container to hold liquid chemicals

32. MEDICINE DROPPER

33. THERMOMETER a device that measures temperature

34. IRON STAND used to hold or support glassware during experiments.

35. TRIPOD a three-legged rack used for support in heating setups.

36. WIRE GAUZE a fine mesh of thin wires woven closely together used in heating setups

37. MORTAR & PESTLE Used to crush & grind substances. The pestle is a heavy stick whose end is used for pounding and grinding, and the mortar is a bowl.

38. EVAPORATING DISH Used for heating things over a burner. Often placed on a ring (on an iron stand) or on a wire mesh on a ring.

39. WATCH GLASS Used as a cover for a beaker or to contain a small amount of a chemical.

40. PIPET / PIPETTE Used to measure small amounts of solution very accurately. A pipet bulb is used to draw solution into the pipet

41. STIRRING ROD used to stir liquids in flasks or beakers.

42. TEST TUBE Use as a container for various materials

43. TEST TUBE BRUSH Used to clean the inside part of a test tube.

44. TEST TUBE HOLDER Used to hold test tubes

45. GLASS FUNNEL Used in filtration processes

46. WASH BOTTLE used to rinse glassware in the chemistry lab. It is NOT used to rinse your eyes!