Ken Stewart
Contributor
Ken Stewart is a retired educator of 31 years, with an honours degree in chemistry, physics, and mathematics. He brings extensive experience as a contributor to Encyclopædia Britannica from his many years of developing multiple resources for several major publishing companies worldwide, both in print and in online platforms.
Primary Contributions (31)
Potassium nitrate (KNO3), an ionic white crystalline salt made up of potassium ions and nitrate ions. Uses of potassium nitrate include the manufacture of fertilizers, pesticides, glass, fireworks, explosives, and rocket fuels. It is also used as a food preservative, and when added to meat it…
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