Description: This thesis explores the chemical contents of post oak and willow trees. Samples of each tree are compared to determine the amount of sulfur, phosphorus, potassium, sodium, silicon, iron, aluminum, calcium, magnesium, and manganese in them. Results indicated usefulness of each tree to humans.

Description: The object of this study is to determine the effect, if any, of the copper and iron intake upon the hemoglobin levels of student nurses on self-chosen diets.

Description: Report issued by the Bureau of Standards over the measurements of critical ranges of pure iron wire. The methods and materials used for the measurements are discussed. This report includes tables, and illustrations.

Description: This article discusses nanoparticle-assisted microwave absorption by single-wall carbon nanotubes. Abstract: We report the effects of microwave irradiation on both unpurified and purified iron-catalyzed high-pressure disproportionation (HiPco)-grown single-walled carbon nanotubes (SWNTs) in ultrahigh vacuum. Under microwave irradiation, we observe that unpurified HiPco SWNTs quickly reach temperatures of approximately 1850 ºC. As a result, H2, H2O, CO, CO2, and CH4 gases are observed, and the Fe catalyst nanoparticles melt and coalesce into larger crystallites approximately four times their original diameter. In contrast, carbon black and purified HiPco SWNTs heat up to temperatures of 500-650 ºC. We propose that the significant heating of unpurified HiPco SWNTs is due to the Fe catalysts.

Description: This article discusses stepwise reduction of dinitrogen bond order by a low-coordinate iron complex. Conversion of atmospheric N₂ into NH₃ is one of the most important chemical processes, because ammonia is the industrial and biological precursor to many nitrogen-containing compounds. Large-scale transformation of N₂ and H₂ into ammonia is performed in industry by the Haber-Bosch process, using "potassium-promoted" porous iron. A view of the N₂-reducing active site of iron-molybdenum nitrogenase, which contains unusual iron atoms with only three sulfur donors, is shown in Chart 1. The presence of iron in the active sites of this and other nitrogenases suggests that iron is again important for activating dinitrogen. Thus iron plays a major role in both natural and industrial N₂ reduction catalysis.