偏硅酸钠
【中文】白色粉粒状，易溶于水及稀碱液，不溶于醇和酸，水溶液呈碱性，露置空气中易吸湿潮解。用于配置各类洗剂、金属表面处理、陶瓷助磨剂、耐火剂原料、保塑保水剂原料、除油纺织印染助剂及纸张脱墨剂等，并可用作过氧化物漂白的稳定剂。参考指标：氧化钠21.5-23.0%、氧化硅21.0-22.5%、水不溶物≤0.20%、铁含量≤200ppm、白度≥75。包装：内塑外编，25kg/袋。运输和贮存：贮存在阴凉、通风、干燥处，运输过程中防潮、防雨、防曝晒。
【English】White powder or granules, readily soluble in water and dilute alkali solutions, insoluble in alcohol and acid, alkaline in aqueous solution, and easily hygroscopic and deliquescent when exposed to air. It is used in various detergents, metal surface treatment, ceramic grinding aids, refractory raw materials, water-retaining agent raw materials, degreasing textile printing and dyeing auxiliaries and paper deinking agents, and can also serve as a stabilizer for peroxide bleaching. Reference indices: Na2O 21.5-23.0%, SiO2 21.0-22.5%, water-insoluble matter no more than 0.20%, iron content no more than 200 ppm, whiteness no less than 75. Packing: inner plastic and outer woven bag, 25 kg per bag. Storage and transportation: keep in a cool, ventilated and dry place and protect from moisture, rain and sunlight.
