PRODUCT Properties
| Melting point: | 123-126 °C(lit.) |
| Boiling point: | >360 °C(lit.) |
| Density | 1.2828 (rough estimate) |
| refractive index | 1.6500 (estimate) |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| Colour Index | 11000 |
| pka | 2.82(at 25℃) |
| color | Yellow crystals or orange needles with blue case from EtOH |
| Water Solubility | 29.59mg/L(25 ºC) |
| Merck | 14,419 |
| BRN | 1913042 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
Description and Uses
This azoic coloring can be reduced in paraphenylenediamine (PPD). It ean be found in some semipermanent hair dyes, and patch tests are frequently positive (about 30%) in hairdressers with hand dermatitis. Because of cross-sensitivity, the detection of sensitization to p-aminoazobenzene may be assumed by a PPD test.
as a dye for lacquer, varnish, wax products, oi! stains and styrene res ins; in insecticides; used as an intermediate in the manufacture of Acid Yellow, diazo dyes and indulines.
Safety
| Symbol(GHS) |    GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H302-H317-H350-H410 |
| Precautionary statements | P202-P273-P280-P301+P312-P302+P352-P308+P313 |
| Hazard Codes | T,N,Xi |
| Risk Statements | 45-50/53-36/37/38-20/21/22-46 |
| Safety Statements | 53-45-60-61-36/37/39-26-22 |
| RIDADR | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | BY8225000 |
| HazardClass | IRRITANT |
| PackingGroup | III |
| HS Code | 29270000 |
| Toxicity | LD50 intraperitoneal in mouse: 200mg/kg |
