性狀無氣味，有毒。在干燥熱空氣中風(fēng)化，約160℃時(shí)失水，灼燒后轉(zhuǎn)化為碳酸鹽而不呈明顯碳化。溶于3份水，微溶于乙醇。密度:2.13
                  
                  備注: 以上描述，僅作參考，并不表示您收到的產(chǎn)品，與此項(xiàng)描述完全相符，產(chǎn)品的出廠標(biāo)準(zhǔn)，請(qǐng)參見質(zhì)量標(biāo)準(zhǔn)。
                  質(zhì)量標(biāo)準(zhǔn)
                   GB/T695-94
                  項(xiàng)目ltem                                                    分析純       化學(xué)純
                                                                                       (AR)         (CP)
                  含量(K2C2O4•H2O)Assay,%               ≥ 99.8         99.5
                  pH(50g/L溶液,25℃)pH of water solution   7.2-8.2      7.2-8.2
                  澄清度試驗(yàn)Clarity                        合格         合格    
                  水不溶物lnsoluble matter in water,%   ≤ 0.003        0.02
                  氯化物(Cl)Chloridea,%                 ≤ 0.001        0.005
                  硫化合物(S)Sulfale compounds,%        ≤ 0.01         0.03
                  總氮量(N)Total nitrogen,%             ≤ 0.002        0.005
                  磷酸鹽(PO4)Phosphate,%                ≤ 0.001        0.005
                  鈉(Na)Sodium,%                        ≤ 0.02         0.05
                  鐵(Fe)Iron,%                          ≤ 0.0005       0.001
                  重金屬(以Pb計(jì))Heavy metals,%          ≤ 0.0005       0.001
                  易碳化物質(zhì)Readily carbonizable substance 合格         合格
                  貯存密封避光保存。
                  用途化學(xué)分析，防止血液凝固的檢定，照相去污。