General Lab Safety and Equipment Review

Flashcards covering general laboratory safety rules, Bunsen burner operation, WHMIS pictograms, and common science laboratory equipment based on the lecture notes.

Safety Goggles

Protective eyewear worn in the laboratory to shield the eyes from chemical splashes, heat, and hazardous debris.

Fire Blanket

Safety equipment used specifically to smother and extinguish a fire on a person's body or clothing.

Emergency Shower

Laboratory safety fixture used to rapidly rinse off large quantities of corrosive chemicals from a person's body.

Eye Wash Station

Laboratory equipment designed to continuously flush and wash corrosive or harmful substances out of the eyes.

Safety Flame

The yellow flame produced by a Bunsen burner when the air intake collar is fully closed.

Heating Flame

The hot blue flame produced by a Bunsen burner when the air intake collar is opened to allow oxygen to mix with gas.

Air Intake Collar (Virole)

The adjustable metal ring at the base of a Bunsen burner chimney turned to control airflow and change the flame type.

Bunsen Burner Chimney

The vertical metal tube of a Bunsen burner where gas and air mix before being ignited at the top.

Gas Adjustment Valve

The control valve on a Bunsen burner used to regulate the amount of gas delivered and adjust the flame height.

Acid-to-Water Dilution Rule

The safety procedure requiring acid to ALWAYS be added to water (never water to acid) to prevent violent splashing and heat reactions.

Chemical Wafting

The safety technique of using your hand to wave vapors toward your nose to detect odors without inhaling chemical fumes directly.

Test Tube Heating Angle

Holding a test tube at a $45^\circ$ angle, pointing the open end away from all individuals, and moving it constantly while heating.

Broken Glass Container

A dedicated disposal container reserved exclusively for swept-up broken glassware to prevent injury and contamination.

Unused Chemical Disposal Rule

The principle that unused chemicals must NEVER be returned to their original container to avoid cross-contamination.

WHMIS Compressed Gas

A hazard symbol identifying gases stored under pressure that may explode if heated, dropped, or punctured.

WHMIS Oxidizing Material

A hazard symbol identifying substances that can ignite or intensify a fire by supplying oxygen or stimulating combustion.

WHMIS Corrosive

A hazard symbol indicating materials that can chemically erode metals as well as cause severe burns to human skin, eyes, and lungs.

WHMIS Acute Toxicity

A hazard symbol (represented by a skull and crossbones) indicating substances that can be toxic or lethal following short-term exposure to small amounts.

WHMIS Health Hazard

A hazard symbol for chemical agents that can cause serious long-term health risks, including cancer, birth defects, or organ damage.

Beaker

A wide, cylindrical glassware container with a pour spout used to hold, mix, and provide rough volume estimates of liquids.

Erlenmeyer Flask

A cone-shaped glassware container with a narrow neck designed for holding and swirling liquids without risking splashes or gas escaping easily.

Graduated Cylinder

A tall, narrow container marked with milliliter graduations used to make precise liquid volume measurements.

Scoopula

A metal spoon-like utensil used to transfer small quantities of solid chemical powders onto a balance.

Watch Glass

A circular, slightly concave piece of glass used as a cover for beakers or to hold small samples for observation.

Test Tube Clamp

A spring-loaded tool used to securely hold and transport single test tubes, especially when hot.

Beaker Tongs

Specialized tongs with rubber-coated grips designed for safely lifting and moving heated beakers.

Voltmeter

An electronic device used in physics and chemistry labs to measure electrical potential difference or voltage in a circuit.

Natural Fibers Safety Concept

The recommendation to wear clothing made of natural fibers such as cotton and wool during lab work due to their high fire resistance compared to synthetics.