In 2012, mintage numbers were reduced by over 90%, in line with a similar reduction for the Presidential Dollars, due to large stockpiles of unused dollar coins.he coin was first suggested as a replacement for the Susan B. Anthony dollar, which proved useful for vending machine operators and mass transit systems despite being unpopular with the public.
Butyl rubber is a synthetic rubber, a copolymer of isobutylene with isoprene. The abbreviation IIR stands for isobutylene isoprene rubber. Polyisobutylene, also known as PIB or polyisobutene, (C 4 H 8) n, is the homopolymer of isobutylene, or 2-methyl-1-propene, on which butyl rubber is based.
Butanediol is a chemical that is used to make floor stripper, paint thinner, and other solvent products. It's illegal to sell butanediol for use as medicine. Nevertheless, butanediol is sometimes used as a substitute for other illegal substances such as gamma butyrolactone (GBL) and gamma hydroxybutyrate (GHB). Unfortunately, butanediol is just as dangerous as GBL and GHB. Butanediol has been used to stimulate growth hormone production and muscle growth; and for bodybuilding, weight loss, and trouble sleeping (insomnia). Stimulating growth hormone production and muscle growth.