C.I.Acid Red 88
Acid Red 88
CAS: 1658-56-6
Molecular Formula: C20H13N2NaO4S
C.I.Acid Red 88 - Names and Identifiers
C.I.Acid Red 88 - Physico-chemical Properties
| Molecular Formula | C20H13N2NaO4S |
| Molar Mass | 400.38 |
| Density | 1.508[at 20℃] |
| Melting Point | 280 °C |
| Water Solubility | 1.5g/L at 20℃ |
| Appearance | powder to crystal |
| Color | Yellow to Amber to Dark red |
| Storage Condition | Room Temprature |
| MDL | MFCD00004070 |
| Physical and Chemical Properties | Dark red powder. Soluble in water, its aqueous solution is red. Soluble in ethanol, ethylene glycol ether, acetone-soluble. In concentrated sulfuric acid was Blue Purple, diluted to produce yellow-brown precipitation; In concentrated nitric acid was red-yellow; In dilute sodium hydroxide solution was red-brown. The color of copper and iron ions was dark. |
| Use | Mainly used for wool, silk, nylon fabric dyeing and wool, silk fabric direct printing |
C.I.Acid Red 88 - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| RTECS | QK2420000 |
| HS Code | 32041200 |
C.I.Acid Red 88 - Reference Information
| color index | 15620 |
| LogP | -0.546 at 22℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | acid red 88 is an azo acid dye, which can be used for dyeing wool, silk and nylon, as well as direct printing of silk and wool fabrics, as well as dyeing of wool/brocade blended fabrics with poor dyeing fastness. It can also be used for coloring leather, paper, soap, wood products, cosmetics and medicine. |
| Production method | Using 1-amino -4-naphthyl sulfonic acid and 2-naphthol as raw materials, 1-amino -4-naphthyl sulfonic acid diazotization, coupled with 2-naphthol to obtain the product. The finished product is salted out, filtered, dried and crushed. |
Last Update：2024-04-10 22:29:15
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