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Hydrothermal study in the system Na2O-CaO-SiO2-H2O at 300°C

✍ Scribed by Yaozhong Xi; L.S. Dent Glasser

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
383 KB
Volume
14
Category
Article
ISSN
0008-8846

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✦ Synopsis

Using silicic acid, fused quartz, CaO, NaOH, ~-CS, NS, NC2S3, N2CS3 (2) as starting materials, reaction products are pectolite, B-NS 2, xonotlite, foshagite, NC2S2H, CH, C6S2H3, quartz and NS. Pectolite is the predominent phase; its formation requires a minimum amount of water as solvent. Pectolite and NC2S2H are the only two quaternary products in the system.

The reactivity of the starting materials, conditions of formation and the importance of the aqueous phase, including the way it is added, are discussed.

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