Physical Sciences and Mathematics Commons^™

Effects Of Temperature & Ph On Bpa Leaching In Oral Hygiene Products Using Fluorescence Spectroscopy, Mady Rottinghaus

Honors Theses

No abstract provided.

Determination Of Bisphenol A (Bpa) In Infant Oral Hygiene Devices Using Fluorescence Spectrophotometry, Kaitlyn Thomason

Honors Theses

Bisphenol A (BPA) is an organic, solid substance that is structurally similar to estradiol, a naturally-occurring form of the female sex hormone estrogen. Since the 1957 discovery that BPA can function as an effective hardener, BPA-based plastics have been used to make a variety of consumer goods, such as water bottles, baby bottles, DVDs, eyeglass lenses, and medical devices, while BPA-based epoxy resins have been used to coat the insides of various food and drink containers, to line the insides of water pipes, and to create the thermal ink found on paper sales receipts. In recent years, however, numerous studies …

Making Meyers Clear: An Exploration Of The Chemistry And Art Of Ceramic Glazes, Sara Catherine Williams

Honors Theses

For both seasoned potters and students, looking at a line of unglazed bisque-ware can be a terrifying moment. Terrifying because you know that if you choose the wrong glazes, all of your hard work up until now could be wasted. The form of any clay creation, be it functional or artistic, is equal in importance with the glaze. Bad forms cannot be covered with good glazes, but good forms may be ruined with them. It is through the pairing of the two that a truly beautiful piece is made.

During my undergraduate years and much of my life I have …

The Chronopotentiometry Of Bismuth, Cynthia Elaine Wilson

Honors Theses

Whenever a constant current electrolysis is performed without stirring, the potentials of the electrodes change with time because the concentrations change at the surfaces of the electrodes. The principle of chronopotentiometry is based upon the idea that since the current is kept constant, the electrolysis proceeds at a constant rate. When the electrolysis circuit is closed, the concentrations of the substances taking part in the electrochemical reaction at the surface of the electrode start to vary. The electrode takes up the equilibrium potential as given by the Nernst equation provided the reaction is reversible. If the transport of the substances …

Chronopotentiometry Of Metals, Lana Sue Legrand

Honors Theses

For a long time now the general characteristics of potential-time curves in constant current electrolysis have been known and studied. In 1901 Sand derived his equation giving a relationship for the transition time, providing that the solution is unstirred and linear diffusion is the controlling factor.