白色结晶状粉末。易溶于水和稀碱液中；不溶于醇和酸。水溶液呈碱性。露置空气中易吸湿潮解。具有去垢、乳化、分散、湿润、渗透性及PH值缓冲能力。
对采用溶液结晶法制取五水偏硅酸钠进行了研究。
The preparation of sodium metasilicate pentahydrate using aqueous crystallization method is studied.
概述了五水偏硅酸钠的市场现状，介绍了以废硅胶为原料生产五水偏硅酸钠的实验方法。
The present market of sodium metasilicate pentahydrate was outlined, and then the experimental technique of preparing sodium metasilicate pentahydrate from the waste silica gel was introduced.
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