Calmagite, identified by CAS number 3147-14-6, is a fascinating organic compound that plays a crucial role in analytical chemistry. Its effectiveness as a complexometric indicator is rooted in its unique molecular structure and chemical properties. Understanding these aspects is key for researchers and scientists who rely on this reagent for precise metal ion determinations.

Chemically, Calmagite belongs to the azo dye family, characterized by the presence of an azo group (-N=N-) linking aromatic rings. Its molecular formula is C17H14N2O5S, giving it a molecular weight of 358.37 g/mol. The molecule contains hydroxyl (-OH) and sulfonic acid (-SO3H) groups, which are instrumental in its chelating ability and solubility. The sulfonic acid group, in particular, renders Calmagite soluble in water, a critical attribute for its use in aqueous titration systems. It is also soluble in ethanol, providing flexibility in solution preparation.

The defining characteristic of Calmagite lies in its pH-dependent color changes and its affinity for specific metal ions. In its free form at certain pH ranges, it exhibits a red color. Upon binding with metal ions such as calcium and magnesium, it forms colored complexes, typically resulting in a blue hue. This distinct color transition at the titration endpoint makes it an invaluable tool for chemists. For instance, in the determination of water hardness, Calmagite helps pinpoint the exact moment when all calcium and magnesium ions have been complexed by EDTA.

NINGBO INNO PHARMCHEM CO.,LTD., as a dedicated manufacturer and supplier in China, ensures that our Calmagite product adheres to the highest purity standards, typically 99%. We understand the nuances of its chemical behavior and provide material that guarantees reliable performance. When you choose to purchase Calmagite from us, you are acquiring a thoroughly characterized reagent that will yield consistent results in your laboratory experiments. This commitment to quality makes us a preferred supplier for researchers and industrial chemists alike.

Exploring the chemical intricacies of Calmagite underscores its importance in quantitative analysis. If your work involves metal ion determination, titration, or water quality assessment, consider NINGBO INNO PHARMCHEM CO.,LTD. as your primary source. We are committed to providing high-quality Calmagite at competitive prices. Contact us to buy Calmagite and benefit from the expertise of a leading chemical manufacturer in China.