ChemCafe — science, chemistry and physics made simple

Understanding the Periodic Table: Styles and Organization The Periodic Table organizes chemical elements in a structured way, typically by increasing atomic number and by element properties such as valency. Various...

PPM to Percentage Conversion: Clear Explanation Parts per million (ppm) converts to percentage by dividing ppm by 10,000. This means 1 ppm equals 0.0001%. The direct formula is: Percentage (%)...

Ether Used for Anesthesia USP Grade by Mallinckrodt Chemical Works Ether used for anesthesia USP grade by Mallinckrodt Chemical Works refers to a high-purity diethyl ether produced under standards set...

Books to Learn Analytical Chemistry Some good books that teach analytical chemistry include “Quantitative Chemical Analysis” by Harris, “Fundamentals of Analytical Chemistry” by Skoog, West, and Holler, “Practical HPLC Method...

How to Best Clean Metal The best way to clean metal depends on the type of dirt and the metal surface involved. Using appropriate solvents and cleaning agents ensures effective...

Why Isn’t Water Flammable? Water is not flammable because it is the stable end product of hydrogen combustion, consisting of hydrogen and oxygen atoms bound in a low-energy, chemically stable...

Women in STEM and Nails: Balancing Personal Style and Lab Safety Women in STEM fields encounter varied policies and perceptions regarding nails, particularly nail polish and acrylics, due to lab...

The Total Synthesis of Tetrodotoxin with Dr. David Konrad The total synthesis of tetrodotoxin, achieved by Dr. David Konrad and collaborators in the Trauner group, involves a highly efficient 22-step...

How Dangerous is Whinks Rust Stain Remover? Whinks Rust Stain Remover contains 1.5%-2% hydrofluoric acid (HF), a chemical known for its toxic properties but used safely at low concentrations in...