Chem100 Safety Quiz: Working With Glassware 9

CHEM 100 LEC/LAB

Can Cracked or Chipped Glassware Be Used in the Lab?

No, do not use it; get a replacement from the stockroom

What Causes Most Accidents related to Glassware in Chemistry Labs?

Inserting and removing glass tubes and thermometers from rubber stoppers

How Should Glass Tubing Be Inserted into a Rubber Stopper?

Lubricating the glass

Hold it near the end, close to the stopper

Protect your hands with a towel

Insert gently with a twisting motion, and do not force it

What Should You Do if Inserting Glass Tubing is Not Successful?

Ask the instructor for help

How Should Broken Glass Be Handled?

Notify the instructor

Follow directions

Do not touch it

Clean up only if instructed using a dustpan and brush

Place it in the labeled “Broken Glass” bin

Where Should Broken Glass Be Disposed of?

In the green and white bin labeled “Broken Glass.”

What Should Be Done after a Glass Breaks in the Lab?

Search the floor and lab bench for small pieces of broken glass

Should a Thermometer Be Shaken?

No; lay it on a towel to cool away from the edge of the lab bench

What Should You Do if a Ground Glass Stopper Is Frozen?

Report it to the instructor for replacement and do not force it off

How Should a Pipette Be Inserted into a Suction Bulb?

By holding the pipette near the bulb and gently placing it into the opening.