Hazel Bishop

Hazel Bishop

By: Jessica Nguyen

The life of Hazel Bishop

Founder of the cosmetics company Hazel Bishop, Inc., Hazel Gladys Bishop was an American chemist who invented the first long-lasting lipstick. Working alongside leading dermatologist, Dr. A. Benson Cannon, who later helped Bishop launch the hypoallergenic cosmetics line known as Almay, Bishop would go on to work as an organic chemist for the Standard Oil Development Company to design fuels for airplanes during World War II. Eventually, Bishop began working with dyes that would stain color into the skin, launching her product by 1949 ultimately bringing in more than $10 million annually. In 1962, Bishop left this business to run on its own and found success as a financial analyst after joining the Wall Street brokerage firm of Cache and Company.

Born: August 17, 1906Died: December 5, 1998 (age 92) Nationality: American Education: Barnard College Occupation: Chemist

Example Problem:

You want to create a moisturizing lotion with a water-based consistency. To mix water and oil in a cosmetic product, you need an "emulsifier," which acts like a bridge between the two substances, allowing them to blend together without separating. Explain through a learned chemistry concept why water and oil don't mix.

Learning Level: Understanding

SOLUTION

A Difference in Molecular Properties: Polarity

Water is a polar molecule with a partial (+) charge on the hydrogen atoms and a (-) charge on the oxygen atom. This results in a molecular dipole because of uneven distribution of e-. Oil is composed of nonpolar molecules which have even distribution of e-'s and no significant dipole moment. Polar molecules tend to dissolve well in other polar substances ("like dissolves like"), while nonpolar dissolve well in nonpolar substances. Therefore, water and oil don't mix.

Work Cited

Hazel Bishop | Lemelson. lemelson.mit.edu/resources/hazel-bishop.