Grade 11 Review - Lab Safety

levels of danger

• caution

• warning

• dangerous

  the more sides, the more dangerous

routes of entry into the body

• inhalation

• injestion

• absorption

what does this symbol represent?

health hazard

• suspected of causing serious health issues

what does this symbol represent?

toxic

• toxic LONG-TERM if continually exposed

• less serious than health hazard symbol

beaker tongs

• used to handle beakers w hot liquids

graduated cylinder

• used to accurately measure volumes of liquids

Erlenmeyer flask

• prevents spillage when swirled due to the narrow top

iron ring

• connects to a ring stand to provide a stable, elevated platform for the reaction apparatus

wire gauze

• sits on the iron ring to provide a platform for a beaker or an Erlenmeyer flask and spread the heat evenly on the bottom of the glassware

retort stand

• provides a safe way to perform reactions that require heating using a bunsen burner

utility clamp

• used to secure test tubes (maybe other glassware) to the ring stand

beaker

• use to hold solids or liquids that are heated or reacted

flint lighter

• for igniting burners

evaporting dish

• used to evaporate excess liquid from a solid

glass stirring rod

• used to manually sir solutions or transfer a single drop of liquid

pipet

• to transfer liquid