CHEM 225 Organic Chem I Lab Final Review (Safety)

What are the best practices for safely handing waste in the lab?

- Always wear appropriate Personal Protective Equipment - Check labels or instructions before any disposal

Identify the types of information that are necessary to communicate with emergency responders.

- Any other hazards present in the lab - How the incident happened - Any chemicals involved in an incident

Why should Bunsen burners not be used when heating organic materials?

Many organic materials are flammable and could cause a fire.

If you drop or break glassware in lab, first _______________. Then, __________________. Finally, place all that material into the _________________.

get thick gloves or dustpan; carefully collect all the broken glassware; broken glass container

What should you do after finishing work with a reagent bottle?

- Close the bottle. - Return the bottle to its proper storage location.

How should students prepare to use chemicals in the lab?

- Locate the spill kits and understand how they are used. - Become familiar with the chemicals to be used, including exposure or spill hazards.

What information needs to be included on a chemical waste label?

- Relative amounts of chemical compounds in the container - The date the waste container was filled completely - Names of the chemical compounds present in the container

Which signs are typically posted in areas of active lab work?

- Safety equipment signs - Chemical storage signs - Sign prohibiting food and drink - Personal protective equipment (PPE) sign

What should you do every time before you leave the lab?

- Wash your hands - Remove your gloves - Remove you labcoat, if you are wearing one.

What should you do to prepare for lab to avoid accidents while in lab?

- Remove long earrings - Remove loose bracelets - Tie back or secure flowy sleeves - Remove long necklaces - Tie back or secure long hair

Identify the section in which each type of information can be found on a Safety Data Sheet. 1. Possible dangers and health effects 2. Recommendations in case of accidental contact with the chemical 3. Chemical name and formula 4. Incompatibility or reactivity with other chemicals 5. Recommended personal protective equipment (PPE)

1. Hazards Identification 2. First Aid Measures 3. Identification 4. Handling and Storage 5. Exposure Controls/Personal Protection

Match each lab incident to the item of PPE that will protect you from it. Each item of PPE will only be used once. 1. While transferring a solution from a flask to a beaker, the solution accidentally spills down the front of the lab bench. 2. While pulling an empty beaker off the shelf at the beginning of lab, it slips out of your hand onto the floor. 3. While picking up a buret, an unknown solution left by a previous solution drips onto your hand. 4. While checking on a stirring solution, the solution splashes up towards you face.

1. Lab coat 2. Closed-toe shoes 3. Gloves 4. Goggles

Determine where to dispose of each type of waste. 1. Syringe tips 2. Broken flask 3. Titrant solution 4. Unused solid reagent

1. Sharps container 2. Box lined with puncture resistant bag 3. Nalgene bottle with cap 4. Solid waste container

What is generally the best approach when liquid from a large reagent bottle is needed in an experiment?

Pour some of the reagent from the bottle into a beaker, then use as needed in the procedure.

What is the safest option in the lab if you need your vision to be corrected?

Wear corrective glasses or lenses under your safety goggles for the whole experiment, but always check with your TA or Instructor for your school's policy

When should you remove your goggles in the lab room?

When everyone in the room is done handling any chemicals or glassware

When should you start a new chemical waste container in the lab?

When the contents of the current container are a couple inches below the bring of the container

When should you put on disposable gloves for work in the lab?

Before handling any glassware or chemicals for the experiment

What do the colors stand for in the NFPA diamond?

Blue = Health Red = Flammability Yellow = Reactivity White = Special Hazards

What is the main precaution to take if a Gas Cylinder sign is present in the lab?

Visually check that the gas cylinder is restrained but keep a safe distance from it.

Changing gloves often will minimize the spread of chemicals. To properly remove gloves, first, _____________, and then, ________________. Then insert ____________ between the interior edge of the second glove and the skin, and remove the second glove.

grasp the exterior of one glove with a gloved hand; peel off the first glove; a bare finger

What information is needed in order to be prepared for an emergency?

- Contact information for emergency personnel - Location of lab phone and first aid kit - Understanding of where to go should an emergency occur - Location of all exits

Determine which PPE you will likely use in a general chemistry lab.

- Goggles - Gloves - Labcoat

Most laboratory chemical spills are cleaned up in a similar manner, but acid and base spills require an extra step. What is this extra step?

Neutralize the spill before cleaning it up

when an alarm sounds in the laboratory, it is important to respond ___________ and remain _________. Listen for any other instructions, turn off any ____________ in use, and be prepared to leave immediately.

calmly; quiet; equipment

What information is necessary to review in order to be considered familiar with the Safety Data Sheet (SDS) of a substance?

- Handling, storage, and reactivity information - Hazard warnings - Personal protection and first aid recommendations - Identification and description of substance

What are good sources of information about the hazards that affect waste disposal in a chemistry lab?

- The chemical Safety Data Sheets - The chemical bottle labels - Your instructor's directions

Fill in the words to complete each step in liquid spill cleanup. 1. Surround the area with ___________ ___________, then cover the spill. 2. Scoop up the material and place in a _________ __________. 3. Place the bagged waste in a __________ ___________ __________. 4. Wipe down the area with ___________ & ___________.

1. absorbent material 2. plastic bag 3. solid waste container 4. detergent and water

Identify the safety equipment designed to deal with each emergency listed. 1. Fire on a person 2. Cuts or minor burns 3. Chemicals on clothes 4. Large fire on the benchtop 5. Chemicals in eyes

1. fire blanket 2. first aid kit 3. safety shower 4. fire extinguisher 5. eyewash station

Identify the equipment best suited for extinguishing each type of fire. 1. Small benchtop fire 2. Clothing fire 3. Large fire on floor

1. overturned beaker 2. fire blanket 3. fire extinguisher

It is often helpful to remember the acronym PASS when using a fire extinguisher. Fill in the word that corresponds with each letter to complete the steps needed for operation of this device. P: ________ the pin. A: ________ the nozzle at the base of the fire. S: ________ the lever slowly. S: ________ the spray from side to side over the fire.

Pull Aim Squeeze Sweep