A4268720
Azo Violet Indicator , Alcohol solution 0.1%(W/V) , 74-39-5
Synonym(s):
4-(4-Nitrophenylazo)-resorcinol;Azoviolet;Magneson I
CAS NO.：74-39-5
Empirical Formula: C12H9N3O4
Molecular Weight: 259.22
MDL number: MFCD00007310
EINECS: 200-808-5
| Pack Size | Price | Stock | Quantity |
| 125ml | RMB199.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 195-200 °C (dec.)(lit.) |
| Boiling point: | 402.47°C (rough estimate) |
| Density | 1.3450 (rough estimate) |
| refractive index | 1.5700 (estimate) |
| storage temp. | Store below +30°C. |
| form | Powder |
| pka | 8.05±0.35(Predicted) |
| color | Orange-red to red |
| Odor | Odorless |
| Water Solubility | Soluble in dilute sodium hydroxide. Insoluble in water. |
| Merck | 14,5695 |
| BRN | 674709 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong bases. |
Description and Uses
4-(4-Nitrophenyl)azoresorcinol is used for the detection of magnesium with which it yields a bright blue color in alkaline solution and it also used to determine molybdenum with which it forms a red-violet complex: Nikitina, Andrianova, C.A. 75, 136789v (1971).
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a |
| Hazard Codes | Xi |
| Risk Statements | 36/38 |
| Safety Statements | 26-36 |
| WGK Germany | 3 |
| RTECS | VH2810000 |
| TSCA | Yes |
| HS Code | 29270000 |
