Other grades of this product :
| 1,5-Naphthalenedisulfonic acid Basic information |
| 1,5-Naphthalenedisulfonic acid Chemical Properties |
| Melting point | 242.5°C (rough estimate) | | Boiling point | 400.53°C (rough estimate) | | density | 1.7040 | | vapor pressure | 0Pa at 25℃ | | refractive index | 1.5630 (estimate) | | storage temp. | Store below +30°C. | | pka | -0.60±0.40(Predicted) | | color | Crystals or plates | | Water Solubility | 90.52g/L at 25℃ | | LogP | -0.94 | | CAS DataBase Reference | 81-04-9(CAS DataBase Reference) | | EPA Substance Registry System | 1,5-Naphthalenedisulfonic acid (81-04-9) |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 22-24/25-45-36/37/39-26 | | RIDADR | UN 2585 | | WGK Germany | 1 | | HazardClass | 8 | | PackingGroup | III | | HS Code | 2904100090 | | Toxicity | LD50 orl-rat: 30 g/kg GISAAA 45(3),73,80 |
| 1,5-Naphthalenedisulfonic acid Usage And Synthesis |
| Chemical Properties | White powder | | Flammability and Explosibility | Notclassified | | Safety Profile | Very low oral toxicity. Whenheated to decomposition it emits toxic fumes of SOx. Seealso SULFONATES. |
| 1,5-Naphthalenedisulfonic acid Preparation Products And Raw materials |
| Raw materials | Sulfuric acid-->Naphthalene-->4-aminonaphthalene-1,5-disulphonic acid-->Chlorosulfonic acid | | Preparation Products | Direct Blue 71-->1,5-Dihydroxy naphthalene-->Reactive Red M-3BE-->trisodium 2-[[6-[(4,6-dichloro-1,3,5-triazin-2-yl)methylamino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]naphthalene-1,5-disulphonate-->trisodium 2-[[6-[(4-amino-6-chloro-1,3,5-triazin-2-yl)methylamino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]naphthalene-1,5-disulphonate-->NAPHTHALENE-1,7-DISULFONIC ACID-->1,6-Naphthalenedisulfonic acid-->Naphthalene-2-sulfonic acid |
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