Calcium Oxide, chemical formula CaO, is produced by calcining limestone, hence it is called calcined lime or quicklime, and it appears as a white powder.
Calcium Oxide is a basic oxide, sensitive to moisture, easily absorbing carbon dioxide and water from the air. When reacting with water, the resulting Calcium hydroxide (Ca(OH)₂) solution is a moderately strong base, capable of neutralizing acidic substances.
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"Bang, bang, bang..."
Bag after bag of Calcium Oxide piled up in Richard's courtyard, building up like a small mountain.
Long after, the stacking was complete.
"How is it, my dearest friend—Lord Richard, are you satisfied with this delivery? I'm telling you, what I've acquired for you this time is absolutely top quality, not a single impurity. And, I haven't overcharged you at all. I swear this—I swear on the name of my ancestors!" Alex leaned close to Richard, his face full of sincerity, but no matter how sincere he seemed, there was always an undeniable cunning.