1552-42-7, Name is Crystal violet lactone, belongs to benzofurans compound, is a common compound. Application In Synthesis of Crystal violet lactoneIn an article, once mentioned the new application about 1552-42-7.
Leuco dye?developer?solvent composites with thermochromic properties were studied. The applied 1-dodecanol solvent shows beta crystalline, alpha solid (rotator) and liquid phases. The inclusion of the crystal violet lactone dye increases transition temperatures of all phases and strengthens the alpha phase. The benzyl 4-hydroxybenzoate developer causes opposite effects and prevents the appearance of the alpha phase. These consequences combine in ternary composites, where lower transition temperatures were obtained as in the solvent, but the alpha phase is formed more likely as expected due to the presence of the developer. The hydration of the composite strengthens its crystalline network, but makes alpha phase more unstable. The thermal properties were related to the temperature-dependent colour. Composites with well-resolved alpha and beta phases at cooling show a typical colour hysteresis. If only weak alpha phase or none at all was found in DSC curves, the colour hysteresis has an unusual shape with heating and cooling curves crossing each other. The hydration of the composite changes the colorimetric properties in accordance with the relation found for anhydrous composite. More conclusions and interrelations between the two properties require application of other analytical methods.
Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 1552-42-7
Reference：
Benzofuran – Wikipedia,
Benzofuran | C8H4147O – PubChem