The Effect of the Addition of Sodium Carbonate and Sodium Silicate on the Casting Properties of Clay Slip

Authors

F. E. Brown, Iowa State CollegeFollow
Chi-fang Lai, Iowa State College

Document Type

Research

Abstract

The addition of small amounts of Na₂CO₃, or of Na₂Sio₃ increases the plasticity of some clay slips and permits them to be cast when they contain a much smaller percentage of water. This permits a much more rapid casting. Casts were made and removed from the mould in 20 minutes. The time for a cast increased for successive casts as the mould became filled with water. After drying the original rate was possible. A mixture of Na₂CO₃ and Na₂Sio₃ was found to be superior to either alone. The use of these salts did not injure either the mould or the quality of the pieces cast. As many as 100 pieces were cast in one mould.

Publication Date

1926

Journal Title

Proceedings of the Iowa Academy of Science

Volume

33

Issue

1

First Page

170

Last Page

170

Copyright

©1926 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Brown, F. E. and Lai, Chi-fang (1926) "The Effect of the Addition of Sodium Carbonate and Sodium Silicate on the Casting Properties of Clay Slip," Proceedings of the Iowa Academy of Science, 33(1), 170-170.
Available at: https://scholarworks.uni.edu/pias/vol33/iss1/25