Odium silicate is used as adhesive in metal casting , fireproof material , paper board , electric welding material , crt screen ; as water purifying agent , scale remover ; as washing aid . buffer in detergent ; as sealant in oil drilling ; as ore flotation agent , slurry thinner and leakage - blocking material in mining ; as bleacher aid , mordant , sizing material , impregnating agent in textile dye & printing ; as anti - corrosion agent and insecticide in wood processing ; as basic ingredient for coatings 硅酸钠被大量地用于制造工业作为填充剂，在金属浇铸中作为砂型粘结剂，版纸工业中被用作胶合剂，在耐火材料行业中用作粘结剂，在电焊条行业也用作粘结剂，在电子工业中可用作显像管成屏的粘结剂，在水处理中用作处理剂，防结垢剂等。在合成洗涤剂行业中用作助剂，在清洗剂行业中用作清洗及防腐缓冲剂，在石油开采中用作防止井喷材料，在矿山开发中用作堵漏材料、矿石浮选剂和泥浆稀释剂等。
