Toluidine blue is an organic dye. It is a cyan to blue crystalline powder that is soluble in water and organic solvents.
Nature:
1. Appearance: toluidine blue is blue crystalline powder.
2. Solubility: It is soluble in organic solvents such as water, alcohol, ether and benzene, showing a blue solution.
3. pH range: toluidine blue appears red under acidic conditions of pH 3-4, and yellow under alkaline conditions of pH 11-12.
4. Easy oxidation: toluidine blue is easily oxidized by oxygen in the air to produce other compounds.
Purpose:
1. Chemical indicator: toluidine blue is commonly used as an indicator in chemical laboratories for determining pH, reducing agent concentration, and precipitation and precipitation of metal ions.
2. Dye: Toluidine blue can be used to dye textiles, leather and paper and other materials, giving them a vivid blue color.
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Molecular Formula | C15H16ClN3S |
Molar Mass | 305.82 |
Pwen k ap fonn | >200℃ |
Solibilite dlo | 3.82 g/100 mL |
Solubility | Water:1mg/ml |
Aparans | Powder |
Color | Dark green to black |
Maximum wavelength(λmax) | ['626 nm, 630 nm'] |
Merck | 14,9520 |
pKa | 2.4, 11.6(at 25℃) |
PH | 2.8 (H2O, 25℃) |
Storage Condition | Inert atmosphere,Room Temperature |
Estabilite | Stable. Incompatible with strong oxidizing agents. |
MDL | MFCD00011934 |
Physical and Chemical Properties | Alkaline blue 17 is dark green or black-gray powder with a bronze luster. Soluble in water (3.82g/100ml), blue-purple solution, slightly soluble in ethanol (0.57g/100ml), blue, slightly soluble in chloroform, almost insoluble in ether. |
Sèvi ak | This product is for scientific research only and shall not be used for other purposes. |
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