Low-Cost Magnetic Stirrer from Recycled Computer Parts with Optional Hot Plate

被引：8

作者：

Guidote, Armando M., Jr. ^{[1
]}

Pacot, Giselle Mae M. ^{[1
]}

Cabacungan, Paul M. ^{[2
]}

机构：

[1] Ateneo Manila Univ, Dept Chem, Sch Sci & Engn, Loyola Sch, Quezon City 1108, Philippines

[2] Ateneo Manila Univ, Ateneo Innovat Ctr, Sch Sci & Engn, Loyola Sch, Quezon City 1108, Philippines

来源：

JOURNAL OF CHEMICAL EDUCATION | 2015年 / 92卷 / 01期

关键词：

High School/Introductory Chemistry; Public Understanding/Outreach; Hands-On Learning/Manipulatives; First-Year Undergraduate/General; Laboratory Instruction; Laboratory Equipment/Apparatus;

D O I：

10.1021/ed500153r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Magnetic stirrers and hot plates are key components of science laboratories. However, these are not readily available in many developing countries due to their high cost. This article describes the design of a low-cost magnetic stirrer with hot plate from recycled materials. Some of the materials used are neodymium magnets and CPU fans from discarded computers and recycled electrical components from old circuit boards. This prototype was compared with a commercial magnetic stirrer with hot plate. It was noted that high temperatures were reached at similar rates, and the stirring speed was also comparable between the two. With this prototype, which costs 80% less than. commercials ones, magnetic stirrers with hot plate can be readily available to enhance teaching and learning in science laboratories that need them most.

引用

页码：102 / 105

页数：4