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Phloxine B
Phloxine B (commonly known simply as phloxine) is a Solubility, water-soluble red dye used for coloring drugs and cosmetics in the United States and coloring food in Japan. It is derived from fluorescein, but differs by the presence of four bromine atoms at positions 2, 4, 5 and 7 of the xanthene ring and four chlorine atoms in the Phenyl group, carboxyphenyl ring. It has an Absorption (electromagnetic radiation), absorption maximum around 540 nm and an Emission spectrum, emission maximum around 564 nm. Apart from industrial use, phloxine B has functions as an antimicrobial substance, viability assay, viability dye and staining, biological stain. For example, it is used in hematoxylin-phloxine-saffron (HPS stain, HPS) staining to color the cytoplasm and connective tissue in shades of red. Antimicrobial properties Lethal dosage levels In the presence of light, phloxine B has a bactericide, bactericidal effect on gram-positive strains, such as ''Bacillus subtilis'', ''B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solubility
In chemistry, solubility is the ability of a substance, the solute, to form a solution with another substance, the solvent. Insolubility is the opposite property, the inability of the solute to form such a solution. The extent of the solubility of a substance in a specific solvent is generally measured as the concentration of the solute in a saturated solution, one in which no more solute can be dissolved. At this point, the two substances are said to be at the solubility equilibrium. For some solutes and solvents, there may be no such limit, in which case the two substances are said to be " miscible in all proportions" (or just "miscible"). The solute can be a solid, a liquid, or a gas, while the solvent is usually solid or liquid. Both may be pure substances, or may themselves be solutions. Gases are always miscible in all proportions, except in very extreme situations,J. de Swaan Arons and G. A. M. Diepen (1966): "Gas—Gas Equilibria". ''Journal of Chemical Physics'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
