The price you see initially for chemicals is the 1 pound price. Most chemicals have the following quantity-based discounts:
buy 5 to 9 pounds, save $0.20 per pound
buy 10 to 24 pounds, save $0.30 per pound
buy 25 to 49 pounds, save $0.40 per pound
buy at least 50 pounds, save $0.60 per pound
Chemicals with a * after the name are also available in full bag quantities in the Dry Clays section.