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.
By State. A total of 127 African-Americans have been elected U.S. Representative in the history of the country. Illinois â the only state to elect two blacks to the Senate in the popular vote era â has elected the largest number with 15. California is next with 12 followed by South Carolina and New York with 10 and Georgia and North Carolina with eight.