Beginner Topic 878 of 1102 Analytical, Lab & Spectroscopy
Laboratory Safety
Wearing goggles, knowing hazards and handling chemicals correctly prevent accidents.
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In-depth explanation of Laboratory Safety
Laboratory safety rests on knowing the hazards of every chemical before using it, which is why the safety data sheet should be read first. Personal protective equipment such as splash goggles, a lab coat and suitable gloves protects the eyes and skin, while a fume hood captures vapours from volatile or toxic substances. Students must learn where the eyewash station, safety shower and fire extinguisher are, and must never taste, sniff or directly smell a chemical. Concentrated acid is always added slowly to water with stirring, because the mixing is strongly exothermic and adding water to acid can cause violent spattering. Long hair and loose clothing must be tied back near flames, and every accident, however minor, should be reported immediately.
Going deeper: Laboratory Safety
Key ideas: Before any practical, identify the hazards, the PPE needed, the emergency equipment and the waste route. For acid or base on skin, rinse with running water for at least 15 minutes. Heat liquids in test tubes pointing away from people, and never heat a closed system. Use a fume hood for volatile or toxic reagents, and keep flammables away from flames and hot plates.
Common mistakes and connections: A common error is wearing contact lenses or open shoes, or removing goggles early because the reaction looks finished. Another is returning unused reagent to the stock bottle, which contaminates it. Neutralizing a spill with the wrong agent can generate heat or gas. Connects to hazard symbols, flash point and waste disposal.
Worked example and use case
Adding concentrated sulfuric acid slowly to water with stirring to avoid boiling and spattering.
Frequently asked questions about Laboratory Safety
What is Laboratory Safety?
Wearing goggles, knowing hazards and handling chemicals correctly prevent accidents.
Is Laboratory Safety a beginner, intermediate or advanced topic?
Laboratory Safety is a beginner topic in Analytical, Lab & Spectroscopy. It needs no earlier chemistry lessons and is a good starting point.
What should I learn before Laboratory Safety?
Study these earlier topics in Analytical, Lab & Spectroscopy first: Scientific Method.
What comes after Laboratory Safety?
The next topics in Analytical, Lab & Spectroscopy are Chemical Hazard Symbols and Measurement and Units.
Can I practise Laboratory Safety with quizzes?
Yes. The interactive lesson includes a self-check question on Laboratory Safety, and the Analytical, Lab & Spectroscopy quiz draws on every topic in this area.
Where Laboratory Safety fits in Analytical, Lab & Spectroscopy
Laboratory Safety is topic 2 of 99 in Analytical, Lab & Spectroscopy.