柠檬酸钠（食品添加剂）

　　外文名：Sodium citrate
　　
　　别名：柠檬酸三钠、无水柠檬酸三钠
　　
　　化学式：C₆H₅Na₃O₇
　　
　　性状说明：是一种有机酸钠盐。外观为白色到无色晶体，有凉咸味，在空气中稳定。化学式为C6H5Na3O7，溶于水，难溶于乙醇，水溶液具有微碱性，常用作缓冲剂、络合剂、细菌培养基，在医药上用于利尿、祛痰、抗凝血剂，并用于食品、饮料、电镀、照相等方面。是生物试验的基本药剂之一。
　　
　　用途：柠檬酸钠无毒性、具有pH调节性能及良好的稳定性，因此可用于食品工业。柠檬酸钠用作食品添加剂，主要用作调味剂、缓冲剂、乳化剂、膨胀剂、稳定剂等；另外，柠檬酸钠同柠檬酸配比，用作各种果酱、果冻、果汁、饮料、冷饮、奶制品和糕点等的胶凝剂、营养增补剂及风味剂。
　　

　　注：食品级柠檬酸钠在使用和储存、运输等过程中需严格按照食品安全管理相关内容执行。

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