Britannica
Sources used in this answer
Why was making potash from burned wood unsustainable?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
![A periodic table element box for potassium shows atomic number 19, symbol K, atomic weight 39.0983, electron configuration [Ar]4s1, and name potassium. Icons indicate it is an alkali metal, solid at room temperature, body-centered cubic crystal structure, and has strongly basic higher-valence oxides. A key explains the symbols for alkali metals, solid state, body-centered cubic structure, and strong basicity.](https://cdn.britannica.com/81/22381-050-E3372C94/properties-Potassium.jpg)
potassium
Properties of potassium.
The production of potash from burned wood was unsustainable due to the extreme inefficiency of the process and the massive amount of raw material required. To produce just 1 kg (2.2 pounds) of potash, it was necessary to burn approximately 700 kg (about 1,500 pounds) of beech wood or up to 2,000 kg (about 4,400 pounds) of spruce wood.1
This high consumption of timber made the practice environmentally and logistically untenable, leading the global industry to shift toward large-scale geological mining of potassium-rich minerals by the mid-19th century.12