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CHEMISTRY LABORATORY

CHEMISTRY LABORATORY. SAFETY ORIENTATION Approved by Chemistry Dept. Lab Safety Committee Sept 2015 Updated Fall 2017. Eye protection, gloves & lab coats. Goggles required in all classes ANSI Z87.1, non vented

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CHEMISTRY LABORATORY

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  1. CHEMISTRY LABORATORY SAFETY ORIENTATION Approved by Chemistry Dept. Lab Safety Committee Sept 2015 Updated Fall 2017

  2. Eye protection, gloves & lab coats • Goggles required in all classes • ANSI Z87.1, non vented • Sold by Stockroom personnel at the beginning of each quarter, usually first two lab periods ($6.00 for 2017/2018) • Gloves, nitrile - provided by the Department for all classes and research labs • Laboratory coats required in all classes and available in SU Bookstore ( ~$37.00)

  3. Type of goggles approved by SU Chemistry Lab Safety Committee

  4. These are not “approved”

  5. First Aid Kits locations: • Stockrooms 514 & 609 • Teaching labs: 507, 603, 604&605 • Main Chemistry Office: 516 • All research labs • These only contain very basic supplies! • If the injury required more than a simple band aid, call Public Safety at -5911

  6. Student’s injury in labs • If a student gets hurt and needs medical attention for any reason, Call Public Safety at ext -5911 and THEY will handle the situation entirely. • Telephones located in the 5-th and 6-th floor hallways, stockroom BA609 and all labs, except BA604 and 605 • Note: It is NOT our job to escort them anywhere.  Not faculty.  Not staff.

  7. Typical lab incidents • Chemical burns: wash affected body parts with cold water for 15 minutes; • Exceptions: HF, Na, K, Phosphorous (see CHP for specific instructions) • Do not attempt to neutralize!!!! • Organic burns – use hand soap to emulsify organic substance, wash w/water • Eyes: wash w/water for 15 minutes in eye wash fountain • Evaluate the burns and sent a victim to Public Safety

  8. LIFE THREATENNING CONDITIONS • Difficulty breathing • Major injuries: open wounds, spinal or neck, obvious fracture..etc. • Unconsciousness or unresponsiveness • SU Emergency line #-5911

  9. If there is an Earthquake and you are in the lab… • During an earthquake: • Remain calm, stay away from windows, tall objects and overhead lights. Do not rush outside. • As there is no free space near the walls in Chemistry lab rooms, sit or crouch next to a laboratory bench and shield your head and face from falling debris. • Do not use matches, lighters or open flames and do not turn on lights or electrical equipment, as there maybe gas leaks. If possible, turn off Bunsen burners or other heating equipment. • After the quake stops: • Check for injuries to yourself and others; do not move seriously injured individuals unless necessary. • Use extreme caution in rescue attempts if others are trapped, rather wait for trained personnel to guide rescue efforts. • Evacuate the building if it is damaged, if there are gas leaks or fires, or if directed to do so by University officials. • Move away from the building to a designated evacuation area. For the Bannan building residents it is: NE corner of the Library lawn.

  10. Evacuation assembly area for Bannan building residents NE corner of the library lawn

  11. Evacuation procedure: • Stop what you are doing and walk, not run, to the nearest stairwell. Close all doors behind you. • Use the stairs, do not use elevators. If the powers fails, you may become trapped in the elevator. • Once evacuated, proceed to your designated gathering area. Do so in an orderly manner, do not panic. • In assembly area report to your instructor/supervisor fr a headcount. • Do not re-enter the building until the “all clear” announcement is given by the emergency coordinator.

  12. FIRE HAZARD • Each lab is equipped with ABC extinguisher, located by the door and labeled • If the fire is not possible to handle with a extinguisher– activate the fire alarms and evacuate!! • Fire alarms are located at the opposite sides of each hallway (picture)

  13. Fire alarm next to BA501

  14. INCIDENT/ ACCIDENT REPORTS • Fill up a “Chemistry Department Incident Report Form” – available in each laboratory. Give one copy to Kasia and keep one. They will be archived on “T” drive and use for safety discussion. • Accidents as: injuries, fires and spills should also be reported to Public Safety.

  15. “Reportable Accidents” • Each injury which required medical attention, also: fire and “spill” in the laboratory should be reported to Public Safety Department in order to make an official “Accident Report”; • Call -5990 or –5911 • The officers will show up in the lab to fill out the required forms

  16. CHEMICAL SPILLS • Immediate action: confine and neutralize if possible to handle. • Examples of spills which would require evacuation: • - Bromine> 50 ml and not in the hood -Mercury > 1 thermometer bulb -Extremely hazardous chemicals > 1 L. Call Public Safety Office at -5911, they will contact Emergence Response Team to clean up the lab.

  17. WORKING WITH CHEMICALS

  18. ORDERING, INVENTORY & STORAGE • The chemicals will be delivered to the Stockroom, inventoried and delivered to their final destinations. • Inventory : bar-coded system by VERTERE • Kasia & Deanna are “administrators” eligible to make entries/changes • “Read only” copy – available in T drive under “Chemical and lab inventories” (No password required) • To remove used reagents from inventory list: return an empty bottle with bar-code label to the Stockroom or remove the label and stick on the designated log.

  19. Please, remove barcodes from empty reagent bottles and stick them here:

  20. CHEMICAL STORAGE LOCATIONS: • BA610 – main chemical storage area • BA605&604 under hoods: corrosive acids and bases • BA603 under hoods: Acetone, Hexanes, Ethyl Acetate, Halogenated solvents, Acetonitrile, • Research chemicals: in individual research labs and BA612/B (solvent purification room) • Teaching labs: limited amount of chemicals for immediate use in students’ experiments

  21. Relocation procedures: • Sign relocations sheet ( on the door of storage areas) • Needed are: date, bar-code number & new location • This is to keep the inventory updated

  22. Chemical Relocation Log Please add the following information when removing any chemical reagent from this lab.

  23. CHEMICALS requiring special attention • 1. Air contaminants with extremely low (OSHA) PEL-s, These should always be used with an adequate ventilation (HOODS!) and secondary containment. If not – measuring devices to protect users from an exposure above these limits are required by OSHA. quantities to reach OSHA PEL this concentration in BA605 -Acrylamide 0.3 mg/cu meter 90 mg -Allyl alcohol 5 mg/ cu meter ~1.8ml -Benzene 3.2 mg/cu meter ~ 1ml -Benzyl chloride 5 mg/ cu meter ~ 1.4 ml -Bromine 0.7 mg/cu meter 210 mg= 0.07 ml -Carbon tetrachloride 12.6 mg/cu meter ~ 2.5 ml -Chloroform 10 mg/cu meter ~ 2 ml -Formic acid 10 mg/ cu meter ~ 3 ml -HCl 7 mg/cu meter ~ 2 ml -Hydrogen Sulfide 10 ppm ~ 4 g of gas -Iodine 10 mg/cu meter ~ 3 g -Mercury** 0.05 mg/ cu meter ~ 15 mg **elemental mercury use is banned from Schools in WA

  24. Links to full OSHA lists (Table Z-1 & Z-2)of PEL-s & STEL-s • http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9992 • http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9993 http

  25. 2. Extremely flammable reagents:(low Flash /boiling point & wide LEL-UEL) • NFPA Group 1A: -Acetaldehyde -Diethyl ether -Pentane • NFPA Group 1B: -Acetone -Benzene -Carbon Disulfide -Cyclohexane -Ethanol -Ethyl Acetate -Heptane -Hexane -Methanol -Methyl Ethyl Ketone -Toluene

  26. 3. TOXIC Chemical Reagents • LD50 (LC50) – experimental value, lowest dose which kills 50% population of tested animals (rats, mice, guinea pigs…) – always indicated what animal and the route of exposure • LDLo – lowest published lethal dose (humans too) • Conversion factors for human doses: Rat x 0.142 Mose x 0.066 Guinea pigs x 0.179

  27. Classes of Toxic Chemicals

  28. Finding Toxicity Data: • www.hazard.comfor SDS • www.sigmaaldrich.com catalog, for SDS • Toxicity data is located in Sections11 in both: MSDS and SDS

  29. HgCl2 1 mg KCN 5 mg NaCN 6.4 mg HCN 10 mg HgI2 18 mg HgO 18 mg Sodium Azide 27 mg Mercury (elemental) 29 mg HgBr2 40 mg NaAsO2 41 mg Mercury Thiocyanate 46 mg Mercuric Sulfate 57 mg Hydrazine 60 mg Lead Acetate 71 mg Chromium trioxide 80 mg Cobalt Chloride 80 mg Cadmium Iodide 81 mg Chromium Sulfate 85 mg Cadmium Chloride 88 mg Lead Nitrate 93 mg “Our list” of chemicals with the lowest LD50

  30. Managing Chemical Wastes • Waste containers will be provided to all teaching labs, labeled and placed in secondary containers • Make sure that the containers are not overfilled, usually ~ 2” of the top. • O-chem. and upper division classes ensure proper collection and separation of different types of waste

  31. Waste jars in the proper secondary container

  32. Chemical Waste in Research Laboratories 1.Guidelines for waste collection 2. Forms to use

  33. Master list of X, A and P wastes • Master_X_A_P_alphabetical_order.xls

  34. GHS: Globally Harmonized System of Classification and Labeling of Chemicals -Initiated by UN Conference of Environment and Development in 1992 -First version developed by UN Experts in 2003 -Adopted in USA by OSHA in 2012 into Hazard Communication Standard or “HazCom” -Final implementation in USA: June 1, 2016 -What should we (end-users of chemicals) know about GHS is mainly: how to read and interpret the data on primary labels and SDS-s

  35. HazCom 2012 – Complete Schedule of Effective Dates

  36. What is different in GHS? • Hazard classification: 3 main classes of hazards: Physical; Health and Environmental; divided into subclasses • Hazard rating: uses term “Hazard Category” with numbers and letters; reversed rating by comparing to HMIS; • Labeling: new elements required • Safety Data Sheets (SDS) will replace MSDS

  37. GHS three main hazard classes and 29 subclasses • 1. Physical Hazard 16 subclasses(examples: Explosives, Flammables, Oxidizers, Organic Peroxides…etc.) • 2. Health hazard 11 subclasses (examples: Acute toxins, Skin corrosives, Carcinogens, Reproductive toxins…etc.) • 3. Environmental hazard 2 subclasses: Acute aquatic toxins & Chronic aquatic toxins More about hazard classes and subclasses located on these websites: http://www.sitehawk.com/ghs_hazard_physical.html http://www.ccohs.ca/oshanswers/chemicals/whmis_ghs/hazard_classes.html

  38. GHS hazard ratings: Categories GHS hazard rating system uses term: “Hazard Categories” , followed by a number, letter and (or) other description. • The number 1 and letter A indicates highesthazard; (reversed to HMIS !)(example: “Category 1.1” or “1.A” ) • The less hazardous chemicals have the higher numbers and subsequent letters; (highest number is 5 and letter G) • Some subclasses have as many as 5 levels of hazard categories and some may have only one or two.

  39. Information required on GHS Primary Labels 1.Product identifier 2. Pictograms! 3.Signal words 4.Hazard statements 5.Precautionary statements 6. Supplier information

  40. Pictograms • Graphical composition: diamond shape, red border, white background, black symbolic picture that is intended to convey specific hazard information; best resource: SDS • Each type of pictogram may be used for multiply hazard classes/subclasses • Single substance may include more than one pictograms; Exception: exclamation mark should never appear with skull bone

  41. Signal words “Danger” for more severe hazard categories. Always uses this pictogram: “Warning” for less severe hazard categories and very rarely usesexclamation point pictogram

  42. Hazard statements Standardized phrase assigned to each hazard class/subclass and it’s hazard category In order to keep these statements consistent, each of them has an unique code which starts with letter “H”, followed with 3 numbers; First number indicates the main class of hazard • “2” for Health Hazards:H200-H290 • “3” for Physical Hazard: H300-H373 • “4” for Environmental hazard; H400-H42 These codes are intended to be used for reference purposes only, are not part of the hazard statement text and should not be used to replace it! The codes are listed on SDS only and not on labels.

  43. Precautionary statements 5 parts: coded with letter “P” and 3 numbers; -General: “P1xx” -Prevention: “P2xx” -Response in case of spillage or exposure:“P3xx” -Storage: “P4xx” -Disposal: “P5XX” codes are listed in SDS only; Each of these five parts is required on a primary labels; (no codes)

  44. GHS primary label explained:

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