Assertion: alkaloid's material | /r/MadeOf | other by-products
Facets:
value: as the main impurities
type: MANNER
Source sentences:
text: Crack is a lower purity form of free-base cocaine that is usually produced by neutralization of cocaine hydrochloride with a solution of baking soda (sodium bicarbonate, NaHCO 3 ) and water, producing a very hard/brittle, off-white-to-brown colored, amorphous material that contains sodium carbonate, entrapped water, and other by-products as the main impurities.