When used in the extemporaneous preparation of topical medications, it is supplied in the form of coal tar topical solution USP, which consists of a 20% w/v solution of coal tar in alcohol, with an additional 5% w/v of polysorbate 80 USP; this must then be diluted in an ointment base such as petrolatum.
Hiram Rhodes Revels, R-Miss. Revels was the first African-American to serve as a state senator, representing Mississippi. Revels was elected by the Mississippi State Senate to fill a vacant U.S. Senate seat, which was abandoned by Albert G. Brown when Mississippi seceded from the Union during the Civil War.
The first Asian-Pacific-American woman elected to Congress, Patsy Mink of Hawaii, won election to the House in 1964. The first African-American woman elected to Congress, Shirley Chisholm of New York, won election to the House in 1968. The first Hispanic-American woman elected to Congress, Ileana Ros-Lehtinen of Florida, won election to the House in 1989.