title: [Physico-chemical characteristics of commercial thiazine dyes. 2. Qualitative and quantitative investigations on the impurity of the dye stuffs and the "unsolubility" for the achievement of higher purity].
mesh_terms: D002712:Chlorides / Q000032:analysis; D004396:Coloring Agents; D003460:Crystallization; D007501:Iron / Q000032:analysis; D008751:Methylene Blue / Q000032:analysis; D011188:Potassium / Q000032:analysis; D012964:Sodium / Q000032:analysis; D012995:Solubility; D013053:Spectrophotometry; D013431:Sulfates / Q000032:analysis; D013843:Thiazines / Q000032:analysis; D015032:Zinc / Q000032:analysis
chemical_list: D002712:Chlorides; D004396:Coloring Agents; D013431:Sulfates; D013843:Thiazines; D012964:Sodium; D007501:Iron; D015032:Zinc; D011188:Potassium; D008751:Methylene Blue
vernacular_title: Physikalische-chemische Eigenschaften von kommerziellen Thiazinfarbstoffen. 2. Qualitative und quantitative Untersuchungen über die Verunreinigungen der Farbstoffe und das "Umlösen" zum Erhalt eines höheren Reinheitsgrades.