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AR Grade Iodine

Updated: 2026-08-21

Overview

AR Grade Iodine (Analytical Reagent Grade) is a high-purity form of iodine, meeting strict chemical standards for laboratory and industrial use. It is characterized by its distinctive dark violet crystalline appearance and metallic luster. Iodine is a halogen element with significant applications across multiple industries, particularly in analytical chemistry, pharmaceuticals, and disinfectants. The AR grade designation ensures minimal impurities, making it suitable for precise chemical reactions and formulations.

Physical and Chemical Properties

碘化铵 白色结晶粉末 化学分析 99%AR试剂级 可开票 12027-06-4广东大小化工有限公司

AR Grade Iodine has a molecular weight of 253.81 g/mol and a density of 4.93 g/cm³. It sublimes readily at room temperature, producing a violet vapor, and has a melting point of 113.7 °C. Its solubility in water is limited, but it dissolves well in organic solvents like ethanol, ether, and chloroform. Iodine acts as a strong oxidizing agent and reacts with many metals and organic compounds. Its high purity (≥99.5%) makes it ideal for sensitive applications where impurity interference must be minimized.

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Main Applications

In laboratories, AR Grade Iodine is used as a reagent in titrations, starch tests, and other analytical procedures. It is essential in preparing iodine solutions for chemical analysis. The pharmaceutical industry utilizes iodine in synthesizing antiseptics, contrast agents, and thyroid medications. Additionally, it serves as a disinfectant in water treatment and medical settings. Industrial applications include dye manufacturing and electronic material production.

Safety and Storage

3-甲基丁酸2-甲基丁酯 2445-77-4 100ml/瓶 ≥98.0% 云星生物广东云星生物技术有限公司

AR Grade Iodine is corrosive and toxic, requiring careful handling. Use personal protective equipment (PPE) like gloves and goggles to prevent skin and eye contact. Avoid inhalation of vapors. Store iodine in tightly sealed, amber-glass or opaque containers to protect it from light and moisture. Keep away from incompatible materials such as reducing agents and ammonia. Proper ventilation is crucial in storage areas to prevent vapor accumulation.

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B2B Procurement Guide

When procuring AR Grade Iodine, prioritize suppliers who provide certified purity analysis (≥99.5%) and proper documentation, including SDS and COA. Verify the CAS number (7553-56-2) to ensure product authenticity. Bulk purchases may offer cost savings, but ensure the supplier can accommodate proper packaging to prevent sublimation during transit. Consider suppliers with experience in handling and transporting hazardous chemicals safely.

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