酸式焦磷酸钠 Disodium pyrophosphate
(重定向自Disodium dihydrogen pyrophosphate)
酸式焦磷酸钠,化学式Na2H2P2O7。
酸式焦磷酸钠是一种白色单斜结晶性粉末或熔融状固体,溶于水,不溶于乙醇。稍有吸湿性,吸水后形成六水合物。水溶液用稀酸加热则水解成磷酸。加热至220°C以上时分解生成偏磷酸钠。
单词 | Disodium dihydrogen pyrophosphate |
释义 |
Disodium dihydrogen pyrophosphate
中文百科
酸式焦磷酸钠 Disodium pyrophosphate(重定向自Disodium dihydrogen pyrophosphate)
酸式焦磷酸钠,化学式Na2H2P2O7。 酸式焦磷酸钠是一种白色单斜结晶性粉末或熔融状固体,溶于水,不溶于乙醇。稍有吸湿性,吸水后形成六水合物。水溶液用稀酸加热则水解成磷酸。加热至220°C以上时分解生成偏磷酸钠。
英语百科
Disodium pyrophosphate 酸式焦磷酸钠(重定向自Disodium dihydrogen pyrophosphate)
Disodium pyrophosphate or sodium acid pyrophosphate is an inorganic compound consisting of sodium cations and pyrophosphate anion. It is a white, water-soluble solid that serves as a buffering and chelating agent, with many applications in the food industry. When crystallised from water, it forms a hexahydrate, but it dehydrates above room temperature. Pyrophosphate is a polyvalent anion with a high affinity for polyvalent cations, e.g. Ca. |
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