Safety Precautions Regarding Chemicals and Lab Equipment

Chemical Safety

Never taste or smell a chemical solution; use wafting to check for odors.

Pipette Use

Never use mouth suction for pipettes; always use rubber bulbs or pumps.

Glass Tubing

Do not force glass tubing into rubber stoppers; use glycerin as a lubricant.

Heating Safety

Follow proper procedures when using heating devices; remove flammable materials before lighting.

Flame Precautions

Never leave flames unattended and avoid dispensing flammable liquids near open flames.

Hot Glass Warning

Hot glass looks like cold glass; determine temperature by placing your hand close without touching.

Emergency Procedures

Turn off gas burners and electrical equipment during fire drills or emergencies; exit as directed.

Reagent Labeling

Always read reagent labels twice; do not use chemicals from unlabeled bottles.

Reagent Handling

Replace tops on reagent bottles immediately after use and return them to designated locations.

Chemical Disposal

Do not return unused chemicals to containers; follow instructor's directions for disposal.