Assertion: potassium nitrate's use | /r/HasProperty | wide
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Source sentences:
text: Other potassium compounds of economic value include potassium nitrate, also known as saltpetre, or nitre, KNO 3 , which has wide use as a fertilizer and in fireworks and explosives and has been used as a food preservative; potassium chromate, K 2 CrO 4 , which is employed in tanning leather and dyeing textiles; and potassium sulfate, K 2 SO 4 , which is used in the production of fertilizers and potassium alums.