十水合焦磷酸钠

性状：无色透明结晶。在干燥空气中微有风化。密封保存。

技术条件

含量（Na4P2O7·10H2O）,%                                                                 ≥99.0

pH值（50g/L,25°C）                                                                             10.2~10.7

                                          杂质最高含量（以%计）

澄清度试验，号                                                                                       3

水不溶物                                                                                                 0.005

氯化物（Cl）                                                                                           0.001

硫酸盐（SO4）                                                                                       0.025

磷酸盐（PO4）                                                                                       0.3

铁（Fe）                                                                                                 0.001

砷（As）                                                                                                 0.00005

重金属（以Pb计）                                                                                   0.001

警告：强刺激性

安全措施：贮于阴凉通风处。皮肤（眼睛）接触，用流动清水冲洗。吸入，给输氧或作人工呼吸