Prev. Article Next Article Table of Contents

Demo

Observation of magnetic repulsion acting on a nitrogen bubble on a water surface: A simple experiment studying diamagnetic property of nitrogen

Citing Articles

Your current credentials do not allow retrieval of the full text.

Purchase the full-text

PDF/HTML,
figures/images,
references and tables,
(where available)

Yukinori Matsuyama , Takashi Yasuoka , Syunmei Mitsuzawa and Tunetaka Sasaki

Department of Chemistry, Tokai University, Kitakaname, Hiratsuka-shi, Kanagawa-ken 259-12, JAPAN

J. Chem. Educ., 1997, 74 (8), p 943

DOI: 10.1021/ed074p943.1

Publication Date (Web): August 1, 1997

Abstract

Observation of the paramagnetic property by a simple experiment showing the attraction of an oxygen bubble on the water surface to a magnet has been reported. In this article, we report the opposite behavior magnetic repulsion observed for a nitrogen bubble by the same method. A nitrogen bubble of 1-0.5cm diameter is produced by using a syringe on the surface of a dilute soap solution placed in a Petri dish in the atmosphere. A permanent magnet with 4500 gauss is made to approach the bubble from a 45 angle to the water surface. As the distance between the magnet and the bubble approaches 0.3cm, the bubble will be seen to be repelled by the magnet. The present experiment may become more attractive and instructive for students of college chemistry and physics, if it is demonstrated together with the experiment of the attraction of an oxygen bubble to the magnet.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Demonstrations

Keywords (Feature):

Tested Demonstrations

Keywords (Subject):

Nitrogen

View: Hi-Res PDF | PDF w/ Links

Citing Articles

Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.

This article has been cited by 1 ACS Journal articles (1 most recent appear below).

Paramagnetism Paradoxes: Projectable Demonstrations
Ed Vitz , , Charles Malerich
Journal of Chemical Education2008 85 (4), 529
- Paramagnetism Paradoxes: Projectable Demonstrations
  Ed Vitz , , Charles Malerich
  Journal of Chemical Education2008 85 (4), 529
  Drops of oil in Mn(SO4)(aq) and drops of the solution in oil show opposite effects when brought near a rare earth magnet. Oxygen, nitrogen, and air bubbles atop water show expected attraction, repulsion, and null behavior, respectively. Air bubbles atop ...
  Abstract | Hi-Res PDF | PDF w/ Links