Intro and Lab Safety

1
Intro and Lab Safety
2
Course Overview

• The generic lab syllabus is available at
  http//iws.ccccd.edu/syllabus
• You will need to purchase
• - Goggles
• Optional gloves and an apron
• There is no book for this lab, all experiments
  are on-line
• All of these items are available in the bookstore

3
Learning Objectives

• You will learn how to observe, record and analyze
  data obtained from your lab work.
• You will learn safe and proper lab behavior,
  techniques and methods of chemical analysis.
• You will master fundamental skills of titration,
  test tube reactions, synthesis of a compound,
  calorimetry, and analysis of unknowns using wet
  lab methods.
• You will learn critical thinking skills and
  problem analysis.

4
My Addendum

• My addendum is available on my website at
  http//iws.ccccd.edu/cmolina.
• Also on my website you can access the schedule of
  experiments for this course.
• My box is located in the associate faculty office
  in room K245.
• The best way to reach me is via e-mail at
  cmolina_at_ccccd.edu

5
Grading

• Lab is 20 of your overall grade.
• In my lab your lab reports are worth 40, quizzes
  are worth 20, procedure is worth 15, and the
  lab practical is worth 25.
• See my addendum for details.

6
Attendance Policy

• Attendance to lab is mandatory.
• Missing four or more labs will result in a zero
  for lab. (see generic course syllabus for more
  info)
• Attendance will not be part of your grade but I
  will take attendance everyday and on your fourth
  absence you will get a zero for the lab portion
  of the course.

7
Emergency Procedures

• If there is an emergency you can notify lab
  personnel or call 911, there is a phone inside
  the prep area.
• Make sure to give the name of the college, the
  location, room number, and phone number you are
  calling from.
• Describe the emergency as clearly and calmly as
  possible.

8
Fire Emergency

• Always notify the instructor of any emergency.
• If possible, confine the fire we have fire
  blankets, fire extinguishers, and a safety
  shower.
• Evacuate the building if necessary.
• A person with burning clothes should be smothered
  by a fire blanket.
• Speed in washing a chemical burn is important!
  Be sure to flush with plenty of water. Use a
  sink or the safety shower.

9
Chemical Eye Injury

• Get to the eyewash immediately!
• Thoroughly wash your eye for at least 15mins.
• Eye injuries are easily prevented by wearing the
  proper safety goggles at all times during lab.

10
Cuts and Abrasions

• Always notify the instructor immediately.
• A first aid kit is available in all of the lab
  rooms.
• Cleanse wound using soap and water.
• If you are bleeding, firmly hold a sterile pad
  over the wound until it stops.

11
Spills

• Notify the instructor immediately of a large or
  possibly dangerous spill.
• There are acid and base spill bottles located at
  each sink to neutralize a spill before clean up.
• Spill pillows are located under the sinks to stop
  large spills from spreading.
• If a chemical that needs special disposal is
  spilled, notify the instructor.

12
Disposal

• Some chemicals require treatment before disposal.
• I will tell you how to properly dispose of each
  chemical you use.
• Properly labeled waste beakers will be provided
  for disposal if necessary.
• Never throw a chemical in the trash or pour it
  down the sink without permission from the
  instructor.

13
Right to Know

• The purpose of the Right to Know Laws is to
  inform the employee about possible hazards in the
  work place. This can be applied to students in
  the lab.
• There are six major components to these laws.
• The most important to you will be the MSDS and
  labeling of hazardous materials.

14
MSDS

• Material Safety Data Sheets
• MSDS are kept in the lab prep area. You can also
  find them on-line.
• They include valuable information about
  substances you will encounter in lab.

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MSDS Components

• Chemical name
• Hazardous components
• Physical characteristics- density, boiling point,
  flash points, etc.
• Physical hazards reactivity, flammability, etc.
• Health hazards signs or symptoms of exposure
• Primary routes of entry and target organs
• Exposure limits
• Precautions goggles, fume hood, etc.
• First aid and emergency procedures
• Name, address, and phone number of manufacturer

16
Safety Guidelines at CCCCD

• Proper lab attire is required at all times!
• Dos long pants or long skirts, close-toed
  shoes, tie back long hair
• Donts shorts or short skirts, bare mid-drifts,
  flip-flops or sandals, loose long hair, dangling
  jewelry
• You are NOT allowed in the laboratory without
  proper attire!!!!!!
• You may keep a pair of sweat pants and shoes in
  your drawer in case you forget to come to lab
  properly dressed.

17
Safety Guidelines at CCCCD

• Do NOT eat, drink, or smoke in the lab.
• NO food or drinks are allowed in the lab rooms.
• Finish ALL snacks and drinks before you come into
  the lab.
• If you bring in any food or drinks they will get
  thrown away.
• Doors can only be propped open 5mins before and
  after the start of lab.
• Never prop the door open when you leave the room!

18
Safety Guidelines at CCCCD

• Some duh or common sense guidelines
• Do not enter the lab under the influence of any
  chemical substance
• Do not work in the lab without faculty or lab
  staff supervision
• No practical jokes or pranks and no horse play
• Report all accidents or strange occurrences to to
  the lab instructor
• Perform only college authorized experiments
• Never taste chemicals

19
Safety Guidelines at CCCCD

• Always use fume hoods when working with caustic,
  noxious, or toxic chemicals
• Clean spills immediately
• Always point test tubes away from yourself and
  others
• Never directly smell a chemical
• Always add acid to water
• NEVER return leftover chemicals to the
  reagent/stock bottle

20
Safety Guidelines at CCCCD

• Never put anything in a reagent/stock bottle!
• This includes spatulas, pipets, and stir rods
• Things come out of the bottle but nothing ever
  goes in the bottle!!!!
• Do not use open flames near flammable substances

21
Clean-up

• Students are responsible for cleaning ALL
  glassware used
• All glassware, supplies, and equipment must be
  returned to its original location
• All lab benches, counters, cabinets, drawers,
  carts, fume hoods, and balances must be cleaned
  before you leave lab.
• Failure to do so will result in points being
  deducted from your procedure grade.

22
Community Cabinets Drawers

• Each lab bench has a community cabinet on each
  side.
• All chemistry classes use the glassware in these
  cabinets.
• An inventory list is taped on the inside of each
  drawer.
• ONLY equipment on this list should be in your
  cabinetno more no less!

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Community Cabinets Drawers

• Cabinet Checks
• I will inform you before lab begins that I will
  be performing cabinet checks at the completion of
  your experiment.
• If your cabinet is in PERFECT condition you will
  receive procedure points (extra credit)
• If your cabinet is NOT PERFECT you will have
  procedure points deducted.

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Community Cabinets Drawers

• Each pair is assigned a drawer.
• I will keep the keys to the drawers.
• You may collect the key at the beginning of lab
  to unlock your drawer. Return the key
  immediately. You may collect the key again at
  the end of lab to lock your drawer, then return
  it to me.
• You may store goggles, gloves, aprons, shoes,
  and/or sweat pants in your drawers.

25
For Next Week

• Come to lab prepared for a quiz over safety and
  density.
• Safety quiz will cover the video, handouts, and
  power point.
• Quizzes usually cover material in the
  introduction of the experiment, any important
  reactions or calculations, techniques used,
  safety precautions, and procedure.
• Bring your completed pre-lab typed and ready for
  me to sign.