O Alum is available at most drug stores. It is used as an astringent to shrink mucus membranes. 3 Nitrate of ammonia fertilizer is available at most garden supply stores.
Corn starch is available at most markets and is used extensively in cooking.
27 H 28 Br 2 O 5 S Aquarium pH test kits often employ bromthymol blue because it changes color in the 6.0-7.6 range. The lighter fluid in hand-held fire starters or cigarette lighters is usually liquid butane. 2 Bleaching powder and some swimming pool disinfectant s contain calcium hypochlorite. Available from cleaning or swimming pool supply companies. In the past quicklime was a material plasterers used in making plaster.