Assertion: impure sodium carbonate | /r/HasProperty | obtained
Facets:
value: from the ashes of plants
type: OTHER
Source sentences:
text: When in 1791 the French chemist and surgeon Nicolas Leblanc (1742–1806) patented a process for mass-producing sodium carbonate, natural "soda ash" (impure sodium carbonate that was obtained from the ashes of plants that are rich in sodium):p36 was replaced by this artificial version.:p46