Iron(II) sulfate was used in the textile industry for centuries as a dye fixative. It is used historically to blacken leather and as a constituent of ink. The preparation of sulfuric acid ('oil of vitriol') by the distillation of green vitriol (Iron(II) sulfate) has been known for at least 700 years. Together with other iron compounds, ferrous sulfate is used to fortify foods and to treat and prevent iron deficiency anemia. Constipation is a frequent and uncomfortable side effect associated with the administration of oral iron supplements. Stool softeners often are prescribed to prevent constipation. Ferrous sulfate was used in the manufacture
The Oil Palace the center. Unfortunately, Manziel died in 1956 and the 56,000 square-foot building’s construction came to a halt. In 1981, Bobby Manziel, Jr. picked up where his father left off by converting the unfinished arena into what it is today. In November 1983, after years of remodeling, the construction was complete and thousands attended the opening ceremony to watch Barbara Mandrell perform. On March 10, 2018, a $2 million renovation was unveiled for a concert starring Jamey Johnson. The Oil Palace The Oil Palace is a 6,960-seat multi-purpose arena located on Texas State Highway 64 just outside the eastern city limits