The impure potassium carbonate obtained by leaching wood ashes, and evaporating the lye, or as a white crystalline pearl-ash. It has previously been an important source of potassium compounds, and previously used in making soap, glass, etc.
Synonym: caustic potash.
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... 1. Appearance of identification: the addition of lime nitrogen fertilizer nitrogen slightly light brown, the other white uniform Jiejing Zhuang, potash fertilizer for the white crystals, but the Canadian potash fertilizer for the reddish-brown. General phosphate fertilizer was powdery, mostly ...
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