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Bell Ringer (2nd, 4th period)

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Presentation on theme: "Bell Ringer (2nd, 4th period)"— Presentation transcript:

1 Bell Ringer (2nd, 4th period)
Name the following lab equipment and tell me its function. Have: Signed Syllabus, Photo Release, and Safety Contract on Desk

2 Hazard symbols How many can you name?
BIOHAZARD RADIOACTIVE CORROSIVE IRRITANT/HARMFUL FLAMMABLE EXPLOSIVE HIGH VOLTAGE TOXIC/POISON OXIDIZING ENVIRONMENTAL HAZARD

3 NFPA CHEMICAL HAZARD LABEL
FLAMMABILITY HEALTH REACTIVITY (STABILITY) SPECIAL

4 NFPA CHEMICAL HAZARD LABEL
Least Serious 4 Most 4 2 3 4 Flammable vapor which burns readily Substance is stable

5 NFPA CHEMICAL HAZARD LABEL
Complete Label for Phosphine

6 MSDS (Material Safety Data Sheet)
On file for all purchased chemicals Available online at Includes all information shown on a chemical label and more

7

8 Describe this chemical based on the information provided.
NFPA diamond 3 1 OX Hazard Rating Severe Serious Dangerous Minor 0 Slight Other special hazards: SA = simple asphyxiant = reacts with water

9 Bell Ringer (3rd, 4th,5th, 6th period)
Draw a NFPA safety diamond for the substance given the following information: Reactivity – 0, Health – 1, Flammability – 3 Describe the chemical based on this information. Describe what safety precautions should be taken for a chemical with the following MSDS info: Have: Signed Syllabus, Photo Release, and Safety Contract on Desk Potential Health Hazards Fire Fighting Measures Slightly toxic by ingestion and skin absorption. Irritating to body tissues. Causes severe eye burns. Avoid all body tissue contact. Noncombustible liquid

10 Learning the Lab Equipment

11 desiccator triple beam balance     policeman Glass stirring rod Watch glass Utility clamp

12 Beaker tongs Safety goggles Crucible tongs apron Stirrer/hot plate

13 Digital balance Graduated cylinder beaker

14 Test tube cleaner Test tube rack Test tube Wash bottle Test tube clamp Mortar and pestle

15 Forceps (tweezers) Florence flask Erlenmeyer flask scoopula Volumetric flask

16 Clay triangle Wire mesh Ring stand Buret clamp ring

17 Bunsen burner and striker
pipettes crucible Crucible tongs

18 Procedure for properly using a Bunsen burner:
1) CAUTION : Make SURE all gas valves are closed, before turning on the main gas. 2) Put safety goggles on 3) Obtain a lab burner 4) Connect rubber hose to the lab burner and gas valve, checking for holes or cracks in the rubber 5) Obtain sparker 6) Turn the gas valve on 7) Hold sparker over the top of the burner, and squeeze the handle producing sparks until the flame is lit 8) Adjust the flame's heat, by turning the air valve on the burner tube

19 And this is an example of a poorly adjusted burner flame
This is an example of a well-adjusted burner flame

20 Lab Equipment & Safety Lab

21 Exit Ticket “Learning the Lab Equipment” Lab
On the sticky note, write EITHER: One thing you learned in class today One thing you’re still unsure about Place sticky note in the appropriate space on the door


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