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.
1 The first black female U.S. Representative was Shirley Chisholm, Congresswoman from New York, 1969â1983. 2  U.S. Senator: Hiram Revels became Senator from Mississippi from Feb. 25, 1870, to March 4, 1871, during Reconstruction. 3  Edward Brooke became the first African-American Senator since Reconstruction, 1966â1979.