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 African American invited to the White House was Frederick Douglas, who was asked to come by Republican President, Abraham Lincoln in 1864. The first to be invited to â¦ an official function was Booker T. Washington. He was invited to a dinner by Republican President Theodore Roosevelt in 1901. The first African American to be voted into the White House as President of the United States is Democrat, Barack Obama who was elected in 2008.