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.
With her election to the U.S. Senate in 2012, Mazie K. Hirono of Hawaii became the first woman of color to serve in both chambers. 1  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.