Products
| Mordant Black 3 | |
| Product name | Mordant Black 3 |
| Chinese name | 1-(1-羟基-2-萘偶氮)-2-萘酚-4-磺酸钠；C.I.羊毛铬蓝黑B；媒染剂黑3；沙罗克罗黑6B；依来铬蓝黑B；鉻藍黑；媒介黑 3；酸性媒介蓝黑T |
| English name | Mordant Black 3 |
| Molecular formula | C20H13N2NaO5S |
| Molecular weight | 416.38 |
| CAS No. | 3564-14-5 |
| Product photo |  |
| Structure |  |
| chemical properties | Soluble in acetone, insoluble in toluene, and the alcohol solution is cherry red. When the water is hot, it is black, red brown, and then it is brown and black, and then it is dark blue. The sulfuric acid solution is deep blue, and the precipitation is diluted with water. |
| Appearance | Brown black powder |
| Melting point | |
| Content | >98% |
| Moisture | |
| Packing | 1kg，5kg，25kg |
The other explanation |
Purpose: to do complex titration indicator. The metal ions such as calcium, magnesium, manganese, zinc and other metal ions, such as calcium, magnesium, manganese, zinc and so on, are used to determine the hardness of water. |
