Assertion: sodium carbonate | /r/CreatedBy | the process
Facets:
value: from crystals
type: OTHER
Source sentences:
text: This invention results from the discovery that soda ash, relatively free of organic impurities, can be produced from crystals containing organic impurities by the process hereinafter described.
text: In 1938 large deposits of the mineral trona were discovered near the Green River in Wyoming from which sodium carbonate can be extracted more cheaply than produced by the process.