Products
| Acid Red 73 | |
| Product name | Acid Red 73 |
| Chinese name | 6-羟基-5-(4-苯基偶氮苯基偶氮)萘-2,4-二磺酸钠;酸性红 73;酸性大红105;酸性大红GB;酸性大红GR;藏花猩红 3B;酸性红73 |
| English name | Acid Red 73 |
| Molecular formula | C22H14N4Na2O7S2 |
| Molecular weight | 556.48 |
| CAS No. | 5413-75-2 |
| Product photo |  |
| Structure |  |
| chemical properties | Red solution is dissolved in water, soluble in alcohol and soluble fiber, soluble in acetone, insoluble in other organic solvents. Diluted generated in sulfuric acid with reddish purple, red and brown precipitate; When nitric acid is blue, the olive brown turned orange. The aqueous solution of concentrated hydrochloric acid to generate dark brown precipitate, adding sodium hydroxide solution generated dark brown precipitate. When dyed in copper, iron ion color darker. The characteristic of discharge. |
| Appearance | Yellow light red powder |
| Melting point | |
| Content | |
| Moisture | |
| Packing | 25kg |
The other explanation |
Mainly used for dyeing of wool, silk, paper and leather, can also be used for plastic, electrochemical coloring of aluminum and cement |
