Unformatted text preview: which is the process by which fine particles clump together into “floc”. The floc of calcium hydroxide could settle to the bottom of the liquid. The calcium hydroxide solution is saturated and if shaken the solid will be on the bottom. 5. Preparing methylcellulose solution with cold water is difficult because it forms a sticky film around the powder and inside will remain dry. Hence, in order to prepare a methylcellulose solution you need to mix the powder with hot water. Once, the methyl cellulose particles are well dispersed in water and and cool down this dispersion while stirring, which will cause dissolution of the methylcellulose particles. 6. The calcium hydroxide is responsible for the pH of calamine lotion....
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- Fall '10
- Poison Ivy, Zinc oxide, Calamine, Andrea Kam