


| Name | Specifications | Packing | Price | Delivery | 
| Chromotropic acid disodium salt dihydrate | AR | 1kg | RMB 2728 | Consulting service | 
| Chromotropic acid disodium salt dihydrate | 98% | 250g | RMB 1317.8 | 促销 | 
| Chromotropic acid disodium salt dihydrate | 98% | 50g | RMB 334.4 | 促销 | 
| Chromotropic acid disodium salt dihydrate | ACS | 25g | RMB 206.8 | 现货 | 
| Chromotropic acid disodium salt dihydrate | AR | 25g | RMB 96.8 | 现货 | 
项目                                                    ACS级
名称Item                                             (ACS Grade)
澄清度Clarity of solution                             passes test
对硝酸盐灵敏度试验Sensitivity to nitrate              passes test
对甲醛灵敏度试验Sensitivity to formaldehyde           passes test
草酸盐(C2O4)Oxalate                                   passes test
磷酸盐(PO4)Phosphate                                  ≤0.001%
硫酸盐(SO4)Sulfate                                    ≤0.002%
铁(Fe)Iron(Fe)                                        ≤3ppm
铅(Pb)Lead(Pb)                                        ≤2ppm
易炭化物Substances carbonizable by hot sulfuric acid  passes test
98%:
外观Appearance                              类白色至灰色或浅棕色粉末
红外光谱鉴别Infrared spectrometry           Conforms
含量assay                                   ≥98.0% (中和滴定)  
水中不溶物Insoluble matter in H2O           <0.02 %  
甲醛分析NO3 andformaldehyde-analysys test   passes
硫酸盐Sulfate                               ≤0.02%
水water                                     8-10%
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