| Melting point |
178-182 °C |
| Boiling point |
64.7 °C |
| density |
0.791 |
| Fp |
12 °C |
| storage temp. |
Store at RT. |
| solubility |
H2O: soluble |
| form |
Solid |
| pka |
2.3, 5.0(at 25℃) |
| color |
White to yellow or beige, darkening on exposure to light |
| PH |
8.2 (10g/l, H2O, 25℃) |
| PH Range |
Red (1.2) to orange (3.4);Red (4.2) to yellow (6.3) |
| Water Solubility |
Soluble in water. Slightly soluble in ethanol. |
| λmax |
437nm, 410nm, 493nm |
| BRN |
4065488 |
| Stability: |
Stability Reported to be unstable, but this is probably a mistake on a commercial MSDS sheet. Incompatible with strong oxidizing agents. |
| Major Application |
optical fibers, liquid crystal cells, holography, inks, toner, corrosion inhibitor, detergent |
| CAS DataBase Reference |
845-10-3(CAS DataBase Reference) |
| EPA Substance Registry System |
Benzoic acid, 2-[[4-(dimethylamino)phenyl] azo]-, sodium salt(845-10-3) |
China
