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
What Is Life in a number of popular movies: Martin Scorsese's "Goodfellas" (1990), during the "May 11, 1980" sequence; Tom Shadyac's "Patch Adams" (1998); and, more recently, Sam Mendes' "Away We Go" (2009). In late 2012, "What Is Life" was used in advance promotion for the film "This Is 40", directed by Judd Apatow, although it was omitted from the accompanying soundtrack album. According to "Rolling Stone": "Today, many people know it merely as a song from all those soundtracks: it's in "This Is 40", "Patch Adams", "Goodfellas" and many more. It's almost as ubiquitous as 'Let My Love Open the Door' or