👉 Variolation is a technique in chemistry used to determine the identity of an unknown compound by observing the color and shape of its vapor, rather than directly comparing it with known compounds. This method was first developed by German chemist Friedrich Wöhler in the early 19th century and has since been widely used for identifying various substances. Variolation is particularly useful for determining the identity of organic compounds, which are typically difficult to identify through traditional analytical methods.
