Amy R
Lead acetate is very hazardous to someone's health. The purpose of this experiment is to determine if the amount of lead acetate in hair dyes exceeds the amount of lead acetate allowed by the government in paint. The purpose of the first procedure was to see how accurate the test was. A .05 M solution of lead acetate was prepared. A piece of filter paper was massed, and the lead acetate was dissolved in warm, distilled water. Then some sodium chromate was added to the solution. A precipitate of lead chromate basic formed and was filtered using a funnel, and put in the oven to dry. The paper was re-massed. The amount ot lead was calculated. Fifty four percent of the lead was recovered. The purpose of the second experiment was to find out the amount of lead acetate in various hair dyes. Three hair dyes were tested. The test was performed three times for each hair dye. Sodium chromate was added to a 10mL sample of each hair dye. It was filtered through a funnel, then put in the oven to dry. The paper was re-massed and the amount of lead was calculated.
The results were that the average amount of lead acetate in Grecian Formula 16 was eight times higher than the safety limit of lead acetate allowed by the government in paint. Youth Hair Creme was 29 times higher than the safety limit of lead acetate in paint. Just for Men contained no lead.