Alchemical Symbols Page #4
This page lists all the various symbols in the Alchemical Symbols category.
Alchemical symbols, originally devised as part of alchemy, were used to denote some elements and some compounds until the 18th century. Note that while notation like this was mostly standardized, style and symbol varied between alchemists, so this page lists the most common.
Symbols in this category:
Calcination (also referred to as calcining) is a thermal treatment process in absence of air applied to ores and other solid materials to bring about a thermal decomposition, phase transition, or removal of a volatile fraction. The calcination process normally takes place at temperatures below the melting point of the product materials. Calcination is not the same process as roasting. In roasting, more complex gas–solid reactions take place between the furnace atmosphere and the solids.
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"Alchemical Symbols." Symbols.com. STANDS4 LLC, 2021. Web. 25 Oct. 2021. <https://www.symbols.com/category/9/Alchemical+Symbols>.