NSC 148355
4-(2-pyridylazo)resorcinol
CAS: 1141-59-9
Molecular Formula: C11H9N3O2
NSC 148355 - Names and Identifiers
NSC 148355 - Physico-chemical Properties
| Molecular Formula | C11H9N3O2 |
| Molar Mass | 215.21 |
| Density | 1.2579 (rough estimate) |
| Melting Point | 192-202°C(lit.) |
| Boling Point | 355.48°C (rough estimate) |
| Flash Point | 218.8°C |
| Water Solubility | Soluble in water (partly), and ethanol (slightly). Insoluble in ether, and low-polarity solvents. |
| Solubility | Slightly soluble in water, soluble in alcohol and ether, easily soluble in acidic and alkaline aqueous solutions, and its sodium salt is easily soluble in water |
| Vapor Presure | 2.73E-08mmHg at 25°C |
| Appearance | Brown or orange powder |
| Color | Orange |
| BRN | 184665 |
| pKa | 8.18±0.35(Predicted) |
| Storage Condition | room temp |
| Refractive Index | 1.4930 (estimate) |
| MDL | MFCD00006256 |
| Use | This product is for scientific research only and shall not be used for other purposes. |
NSC 148355 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | 2811 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29333990 |
| Hazard Class | 6.1 |
| Packing Group | III |
NSC 148355 - Introduction
Complexometric titration indicator, determination of bismuth, cadmium, copper, gallium, mercury, indium, manganese, nickel, lead, thorium, thallium (III), zinc, lanthanide ions, etc. Photometric determination of bismuth, cobalt, copper, gallium, indium, lanthanide, manganese, molybdenum, niobium, nickel, neptunium, osmium, lead, palladium, rhodium, ruthenium, scandium, tantalum, thallium (III), titanium, uranium and vanadium.
Last Update：2022-10-16 17:12:20
NSC 148355 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| uses | reagents for photometric determination of transition metals, such as Bi3, Co2, Fe3, Pd 2, Ni2, NbO, In3, La3, Tn4, plasma developer. EDTA combined with titration to determine Al3, Bi3, Ca3, Cu2, Ga7 and other metal indicators, lead nitrate solution precipitation titration MoO, PO, WO and other indicators. |
Last Update：2024-04-10 22:29:15
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