Sodium silicate (Na₂SiO₃) yog ib qho inorganic compound uas muaj silicon dioxide thiab sodium oxide. Nws yog feem ntau muab faib ua pawg hauv qab no raws li nws cov qauv thiab cov ntsiab lus dej:
1. Sodium metasilicate (anhydrous): Nws cov tshuaj formula yog Na₂SiO₃. Nws yog feem ntau siv nyob rau hauv siab -kub refractory cov ntaub ntawv los yog adhesives.
2. Sodium metasilicate nonahydrate (Na₂SiO₃·9H₂O): Muaj cov dej ntawm crystallization thiab muaj solubility siab, ua rau nws tsim nyog siv rau hauv cov tshuaj ntxuav tes thiab textile industries.
3. Sodium metasilicate pentahydrate (Na₂SiO₃·5H₂O): Nws yog qhov ruaj khov thiab feem ntau yog siv rau hauv ceramic glazes thiab dej kho.
4. Liquid sodium silicate (dej iav): Nws cov qauv (SiO₂/Na₂O ratio) feem ntau yog nyob nruab nrab ntawm 1.6 thiab 3.3. Nws yog dav siv nyob rau hauv lub tsev reinforcement thiab corrosion tiv thaiv.
In addition, the industry also produces sodium silicate with different properties by adjusting the modulus. For example, high modulus (>3) cov khoom lag luam muaj cov kua qaub zoo dua, thiab cov qauv qis (<2) products have stronger adhesion.