无色透明结晶，在空气中易风化，溶于水，不溶于醇，水溶液呈强碱性。
熔点  34 °C  
密度  1.46  
溶解度  H2O: 0.5 M at 20 °C, clear, colorless
水溶解性  210 g/L (20 ºC) 

99.99% :


外观Appearance                                           White Crystals 
X-射线衍射分析X-Ray Diffraction                 Conforms to Structure
纯度Purity                                                        ≥99.99% Based on Trace Metals Impurities of ICP
滴定纯度Titration by HCL                               98.5 - 101.5 % 
ICP:                                                                     Confirms Sodium Component Confirmed 
总痕量金属杂质total metallic impurities   ≤100ppm by ICP Atomic emission

危险品标志  Xi 
危险类别码  36 
安全说明  22-26 
危险品运输编号  3262 
WGK Germany  1
PackingGroup  III 

用作玻璃、造纸、肥皂、洗涤剂、纺织、制革等工业的重要原料  用作食品添加剂、去污剂 
密封保存