A China Dish, also known as an Evaporating Dish, is a standard piece of equipment found in every school and professional chemistry laboratory.
Material: Porcelain (heat resistant and chemically inert).
Other Name: Evaporating Dish.
Primary Use: Evaporation of solvents from a solution.
Appearance: Shallow bowl with a small spout/lip.
A china dish is a small, shallow, bowl-like container with a small pouring lip. It is made of porcelain (a type of high-quality ceramic, traditionally associated with 'China', hence the name).
Porcelain is used because it is highly heat-resistant (can withstand direct flame or high temperatures on a wire gauze) and is chemically inert (won't react with the chemicals placed inside it).
A china dish is a shallow porcelain bowl used in chemistry labs primarily for evaporating liquids from solutions.
Porcelain is highly heat-resistant, meaning it can be heated directly over a Bunsen burner without cracking, and it does not react with most chemicals.
Valency of Iron (Fe) โ Variable Valency, Ferrous, and Ferric States
Iron exhibits variable valency. Learn about the most common valencies of Iron: +2 (Ferrous) and +3 (Ferric), their electron configurations, and examples.
Valency of Potassium, Lead, Bromide and Key Elements
Learn the valency of Potassium (1), Lead (2 or 4), and Bromide (1). Understand the concept of variable valency in chemistry with a clear table.
What is the Valency of Magnesium?
Learn the valency of Magnesium (Mg). Understand its atomic number, electronic configuration (2,8,2), and why it loses 2 electrons to form the Mg2+ ion.
Define Valency: Examples of Silicon and Oxygen
Learn to define valency. Understand how to determine the combining capacity of an element using the examples of Silicon (valency 4) and Oxygen (valency 2).
Valency of Silver (Ag) โ Electron Configuration and Exceptions
Learn about the valency of Silver (Ag). Discover why silver commonly exhibits a valency of +1, its electron configuration, and its rare +2 state.
Turn this guide into revision flashcards, a practice exam, or an AI-generated podcast โ free, no signup required.