Acid-Base Cements: Their Biomedical and Industrial by Alan D. Wilson;John W. Nicholson

By Alan D. Wilson;John W. Nicholson

There was a failure to acknowledge acid-base cements as a unmarried, well-defined classification of fabric. This publication makes an attempt to therapy this example by way of unifying the topic and treating this diversity of fabrics as a unmarried category. Following a quick ancient review, an introductory bankruptcy defines those cements as fabrics which are shaped through reacting a simple powder with an acidic liquid to yield a salt-like matrix. the character of the cementation technique and the cement-forming acids and bases are mentioned. different chapters are dedicated to the tools of analysis, the constitution of water and straightforward polyelectrolyte concept.

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Additional resources for Acid-Base Cements: Their Biomedical and Industrial Applications (Chemistry of Solid State Materials)

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The problem is entirely one of choosing a definition which is of greatest use in the study of a particular field of acid-base chemistry. One point that needs to be borne in mind is that a concept of acids and bases is required that is neither too general nor too restrictive for the particular field of study. 2 History of acid-base concepts From early times acids were recognized by their properties, such as sourness and ability to dissolve substances, often with effervescence. The story of Cleopatra's draught of a pearl dissolved in vinegar illustrates this point (Pattison Muir, 1883).

Wygant, J. F. (1958). Cementitious bonding in ceramic fabrication. In Kingery, W. D. ) Ceramic Fabrication Processes, pp. 171-88. New York: John Wiley & Sons. Yatsimirskii, K. (1970). Acid-base and donor-acceptor properties of ions and molecules. Theoretical and Experimental Chemistry (USSR), 6, 376-80. 1 Introduction The setting reaction for the great majority of acid-base cements takes place in water. ) This reaction does not usually proceed with formation of a precipitate but rather yields a substance which entrains all of the water used to prepare the original cement paste.

The Lewis definition covers all AB cements, including the metal oxide/metal oxysalt systems, because the theory recognizes bare cations as aprotic acids. It is also particularly appropriate to the chelate cements, where it is more natural to regard the product of the reaction as a coordination complex rather than a salt. Its disadvantages are that the definition is really too broad and that despite this it accommodates protonic acids only with difficulty. The Usanovich theory The Usanovich theory is the most general of all acid-base theories.

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