IODINE PEARLS USP GRADE ANTIMICROBIAL & INTERMEDIATE

Description of Iodine Pearls USP

At Quimiconsult we offer USP grade IODINE PEARLS, a high-purity biocide composed of solid elemental iodine supplied in the form of pearls with a minimum iodine assay of 99.5%. This material is mainly used as a raw material and chemical intermediate in the formulation of iodophor products, industrial disinfection solutions and other systems that require a reliable source of active iodine. The pearl form allows safer handling and more controlled dosing than fine powders, while its low impurity level contributes to consistent performance in industrial and formulation processes.

Iodine pearls USP stand out for their high active iodine content and relatively low volatility, which allows a stable, predictable antimicrobial effect when incorporated into suitable matrices (for example, iodophors). These characteristics, together with a maximum non-volatile residue of 0.01%, make the product suitable for industrial, pharmaceutical, veterinary and food industry applications (sanitization of equipment and surfaces) and professional sanitization, always as an ingredient/intermediate and not as a final product for direct application.

Iodine Pearls USP are available in Monterrey, Nuevo León, with shipping throughout Mexico and technical support.

Iodine crystal details and properties

Quimiconsult's Iodine Pearls USP come as spheres of elemental iodine (I₂), stable at 25°C, with an iodine assay between 99.5 and 100.5% and CAS number 7553-56-2. The violet-black color and characteristic luster are typical of high-purity metallic iodine. The product meets strict impurity limits: chlorine/bromine (as Cl) ≤ 50 ppm, non-volatile residue ≤ 0.01 %, iron ≤ 10 ppm, sulfate ≤ 75 ppm and heavy metals ≤ 10 ppm, key parameters for ensuring reproducibility and quality in downstream formulations and processes.

The molecular formula I₂ and approximate molecular weight of 253.81 g/mol are consistent with the use of iodine pearls USP as an industrial chemical intermediate and biocide, where a reliable source of high-purity elemental iodine is required. For production operations and scaled formulations, the product is sold in an industrial 25 kg package, in drums designed for safe handling and controlled storage, which simplifies logistics, inventory control and dosing in industrial processes, ensuring batch-to-batch consistency and operational efficiency in production plants and professional formulation.

Properties

Iodine pearls have a smooth surface and metallic luster, which reduces dust generation and allows controlled handling. They are slightly soluble in water and soluble in organic solvents such as ethanol and acetone, a property that allows their efficient incorporation into iodophor systems and other formulations where active iodine must be released in a controlled way. The release of active iodine is suitable for industrial disinfection processes and for use as a reagent/intermediate in synthesis and analysis.

Thanks to their stability and low non-volatile residue, USP iodine crystals maintain their purity during prolonged storage when handling recommendations are followed, which is critical for laboratories, formulators and industrial plants that require batch-to-batch consistency.

Applications of resublimed iodine (Iodine Pearls USP)

The biocidal, oxidizing and reactive properties of iodine pearls USP make them a strategic input for many industries that require a primary source of high-purity elemental iodine for controlled processes at industrial scale. Their main use is as a raw material in the formulation of iodophor solutions and industrial disinfection systems, in which active iodine is released gradually and predictably, enabling effective microbiological control of surfaces, equipment and process areas within professional formulations.

In the pharmaceutical and wellness industry, iodine pearls are used as a chemical intermediate in the manufacture of drugs, functional excipients and supplements, as well as in the production of povidone-iodine, tinctures and other iodine preparations, always as an industrial raw material integrated into validated formulations. In food and beverages, their use is strictly limited to the industrial sanitization of equipment, process lines and surfaces, without being incorporated as a food ingredient, contributing to food safety and microbiological control programs in production plants.

From a scientific, analytical and technological perspective, iodine pearls USP are widely used as an industrial and analytical reagent in chemical analysis, volumetric titrations (including Karl Fischer), redox processes, synthesis of iodides and iodinated compounds, as well as in microbiological staining and quality control testing. These applications make them a key input in industrial laboratories, research and development (R&D) centers and quality assurance departments, where high purity, stability and batch-to-batch reproducibility are critical requirements.

In the field of technology and advanced materials, elemental iodine is used in the manufacture of polarizing films for LCD screens, specifically as a reagent in the doping process of polyvinyl alcohol (PVA) films. In this application, iodine takes part in the formation of polyiodide complexes that enable the molecular alignment responsible for the polarizing effect, an essential component of LCD technology. In this context, iodine pearls USP are used as a process raw material, not as a final component of the device, and their high purity and impurity control are essential to ensure uniformity and optical performance in the industrial production of polarizers.

In agrochemicals and animal nutrition, iodine pearls are used as a chemical intermediate in the manufacture of iodinated compounds intended for mineral premixes, nutritional supplements and animal feed additives. These derivatives help ensure an adequate supply of iodine in livestock species, supporting the metabolism, growth and reproductive health of the animals. Likewise, in the livestock sector, iodine pearls are incorporated as an active ingredient in industrial disinfectants and sanitizing solutions for facilities, equipment and production systems, supporting the prevention of contamination and disease in animal production environments.

Additionally, in other technological and industrial sectors, iodine pearls USP are used as a reagent in specialized chemical processes, advanced synthesis, manufacture of functional materials and research and development activities, where their controlled oxidizing behavior and ability to take part in specific chemical reactions are fundamental.

Storage of iodine pearls and crystals

To preserve the quality, purity and stability of iodine pearls USP, store the product in its original 25 kg industrial container, tightly closed and protected from direct light. Storage should be in a cool, dry, well-ventilated place, away from heat sources, moisture, reducing materials, metals and amines that could affect its stability or promote unwanted reactions.

During industrial handling, use protective gloves and goggles, together with proper practices for handling oxidizing chemicals. When these recommendations are followed, iodine pearls, which are stable at room temperature, can be stored for long periods without significant degradation, maintaining their performance in industrial and professional formulation processes.

Other names for elemental iodine and their uses

Elemental iodine is the technical and commonly accepted name in basic chemistry, industrial chemistry and compound synthesis for the element in its molecular form I₂. Under this name, iodine is identified as a reactive, oxidizing and biocidal substance, widely used as a chemical intermediate in formulation processes, advanced synthesis and controlled industrial applications. This term usually appears in scientific literature, technical data sheets and regulatory documentation to refer to the element in its pure state.

The term resublimed iodine is used mainly in the pharmaceutical and specialty chemicals industry to describe iodine that has been purified through resublimation processes, which achieve high purity levels and a minimal content of impurities and non-volatile residues. This name is associated with applications where iodine quality is critical, such as the manufacture of iodinated derivatives, iodophor formulations and other industrial processes that require strict specifications, as is the case with USP grade iodine pearls.

The terms crystalline iodine and iodine crystal are common in technical, scientific and educational settings, and are used to describe the solid, crystalline form of elemental iodine. These expressions highlight its stable physical structure, its characteristic violet-black color and its behavior as a molecular solid. In industrial contexts, these names help distinguish it from iodine solutions or derived compounds, emphasizing that it is the element in the solid state.

For its part, the name iodine pearls is used mainly by industrial formulators and operations teams to describe the physical form of the product, which is key to safe handling, controlled dosing, transport and large-scale storage. The pearl or spheroidal crystal form reduces dust generation, makes in-plant handling easier and improves inventory control, making it especially suitable for industrial operations and professional formulation.

Taken together, expressions such as elemental iodine, resublimed iodine, crystalline iodine, iodine pearls and iodine crystal refer to the same USP grade elemental iodine, differing only in the technical, industrial or descriptive context in which they are used. At Quimiconsult, all these names correspond to a high-purity product, intended exclusively for industrial applications, professional sanitization, technological processes and chemical intermediation, and supplied in an industrial 25 kg package, ensuring consistency, traceability and operational efficiency.