RXSOL
Application
| Products | : | Methyl Red ACS Reag Ph. Eur , pH indicator |
| C.I. No. | : | 13020 |
| C15H 15N3O2 | : | M.W. 269.30 |
| Absorption maxima | : | |
| 1 (pH 4.5) | : | 523-526 nm |
| 2 (pH 6.2) | : | 427-437nm |
| Clarity of alcohol solution | : | passes test |
| : | ||
| Absorptivity (on dried sub.) | : | |
| (A 1 % 1cm at 1max pH 4.5) | : | 1330 -1430 |
| (A1 %1cm at 2max ph 6.2) | : | 700 - 800 |
| Visual transition | : | From pH 4.2 pink |
| interval | : | to pH 5.5 orange |
| : | to pH 6.2 yellow | |
| Melting point | : | 179 -182 oC |
| Loss on drying (at 1100C) | : | Max. 5.0% |
| : |
Dosage
Technical Specifications
| Physical State | Solid |
| Appearance | dark red to purple |
| Odor | none reported |
| pH | Not available |
| Vapor Pressure | Negliglble |
| Vapor Density | Not available |
| Evaporation Rate | Negligible |
| Viscosity | Not available |
| Boiling Point | Not available |
| Freezing/Melting Point | 179-182 deg C |
| Decomposition Temperature | Not available |
| Solubility | Insoluble in water |
| Specific Gravity/Density | Not available |
| Molecular Formula | C15H15N3O2 |
| Molecular Weight | 269.30 |
