1. Right to Know Review

2. 1. What is hazard communication? A written document, warning sign, or a chemical label warning someone of hazardous material.

3. 2. Why do we need to know about chemical hazards? Protect yourself Protect others Protect environment

4. 3. What are the most common signal words that alert you to a dangerous situation? Caution Warning Danger

5. 4. What does MSDS stand for? Material Safety Data Sheet

6. 5. Where in the School are the Right to Know notebooks that contains the MSDS? Nurse's office Main office Wellness center Maintenance/ Janitor’s Closet Shops Science classrooms

7. 6. List 7 categories of info on a MSDS. Identifies manufacturer Gives chemical and physical properties Indicates fire and explosion hazard Identifies health hazard Gives reactivity data Indicates storage and handling procedures Supplies first aid information Details disposal and cleanup methods

8. 7. What does TLV stand for? Tolerance Limit Value~ The amount of chemicals a person can be exposed to before they show side effects.

9. 8. What does ppm stand for? Parts per million (ppm) The amount of any substance dispersed into another.

10. 9. What is the TLV of sulfuric Acid? 1mg/M 3

11. 10. Explain what the TLV of sulfuric acid means? The amount of sulfuric acid a person can be exposed to before they show side effects.

12. 11. What are the hazards associated with H 2 SO 4 ? Toxic, strong skin irritant Non-flammable Explosive splattering when mixed with water

13. 12. What first aid should be utilized for Sulfuric Acid for external contact? External-Wash affected parts with copious quantities of water.

14. 13. What does copious mean? A lot; Large amounts of

15. 14. Explain What DOT means. Department of Transportation

16. 15. What should you do if you develop a headache or are injured (cut, burn etc.) in the lab? Tell the teacher Go to nurse for treatment

17. 16. When should you wear safety goggles? When using… Glassware Chemicals Heating materials (fire)

18. 17. When around moving machinery what is the main concern? The main concern is that loose clothing or hair will be caught in the machinery.

19. 18. When using electricity what are the main concerns? The main concern when using electricity in laboratory situations is electrical shock.

20. 19. Define inhalation To breathe in (Inhale)

21. 20. Define ingestion To eat something (digest)

22. 21. Define corrosive Something that will eat away at or eat through.

23. 22. Define toxic Something that can kill you or poison you.

24. 23. What is the difference between Acute and Chronic exposure? Acute Exposure Exposure to a lot of chemical substance in a short period of time. A reaction that happens right away or within minutes or hours. (burns, rashes, nausea) Chronic Exposure Exposure to a small amount of chemical substance over a long period of time. A reaction may take years to develop. (smokers hack)

25. 24. Define diluted DILUTED~ to make (a liquid) thinner or weaker by the addition of water or the like.

26. 25. What are the different color classifications on chemical containers and what do they mean? RED - FLAMMABLE YELLOW - REACTIVE BLUE - TOXIC OR POISONOUS WHITE -CORROSIVE OR CAUSTIC GREEN - RELATIVELY NONHAZARDOUS

27. 26. Name two common routes of exposure to hazardous chemicals. Ingestion Skin / Eye Contact Inhalation

28. 27. Name the three ways materials present hazards to humans. Health Fire Reactivity

29. 28. What is more dangerous a chemical with a number 4 on the label or one with a number 2 on the label? Number 4 because it is considered to be extremely toxic Number 2 on the scale is only moderately toxic

30. 29. What are the chronic and acute hazards associated with Ethyl Ether? Acute hazards Toxic irritant coughing chest pains difficulty in breathing nausea, headaches and vomiting Chronic hazards Possible mutagen