Iodine
Iodine (CAS: 7553-56-2, Formula: I2, MW: 253.81) is a lustrous, purple-black nonmetallic solid. As a key halogen element, it is indispensable in chemical synthesis, particularly for iodination reactions and C-X bond formation. Its applications span various scientific and industrial fields, serving as a crucial reagent in analytical chemistry and the production of diverse chemical compounds. Tech Serve Solutions supplies high-purity Iodine for demanding applications.
- IUPAC
- Iodum

Chemical Synthesis Reagent
Iodine is extensively used as a reagent in organic synthesis, facilitating iodination reactions and the formation of carbon-iodine bonds, crucial for creating complex molecules. It acts as a catalyst or reactant in various coupling reactions and is vital for synthesizing pharmaceuticals and agrochemicals.
Analytical Chemistry
In analytical chemistry, Iodine is employed in redox titrations, such as iodometry and iodimetry, to determine the concentration of oxidizing or reducing agents. Its distinct colour change serves as a clear endpoint indicator.
Disinfectant and Antiseptic Production
Iodine and its compounds are well-known for their antimicrobial properties, forming the basis of antiseptics and disinfectants used in healthcare and sanitation. Though TSS supplies the element, its derivatives are widely applied for this purpose.
Catalysis
Iodine compounds can serve as catalysts in various chemical transformations, including oxidation reactions and polymerization processes, enhancing reaction rates and selectivity in industrial chemical production.
| Molecular weight | 253.81 |
|---|---|
| Empirical formula | I2 |
| Assay | 99.999% trace metals basis |
| Grade | ReagentPlus® |
| Form | chips |
| Boiling point | 184 °C(lit.) |
| Density | 0.93 g/mL at 20 °C |
| Melting point | 113 °C(lit.) |
| Concentration | 0.05 M1/10 N |
| Vapour pressure | 0.31 mmHg (25 °C)1 mmHg (38.7 °C) |
| Vapour density | 9 (vs air) |
| Particle size | −10 mesh |


Hazard statements
- H312Harmful in contact with skin
- H332Harmful if inhaled
- H400Very toxic to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P314Get medical attention if you feel unwell
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 1759 8/PG 2 |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 20/21-50 |
| Safety statements (S) | 23-25-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Resistivity | 1.3E15 μΩ-cm |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Iodine used for?
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Iodine (CAS 7553-56-2) is primarily used as a reagent in chemical synthesis, particularly for iodination and C-X bond formation. It also finds applications in analytical chemistry as an indicator in titrations and historically in disinfectants and antiseptics.
What are the CAS number and formula for Iodine?
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The CAS number for Iodine is 7553-56-2, and its chemical formula is I2.
What grade and purity does Tech Serve Solutions supply for Iodine?
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Tech Serve Solutions supplies Iodine with a purity of 99.999% on a trace metals basis, in a ReagentPlus® grade.
What are the safety considerations when handling Iodine?
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Iodine is harmful if swallowed or inhaled (H312, H332) and is toxic to aquatic life (H400). Appropriate personal protective equipment, including a dust mask (type N95), eyeshields, face shield, and gloves, should be used. Handle in a well-ventilated area and avoid dust formation.
How is Iodine packed and shipped by TSS?
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Iodine is typically supplied as chips. Specific packing and shipping details for export are available upon request, adhering to international regulations for hazardous materials (UN 1759).
How can I request a sample or quote for Iodine?
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To request a sample or a quote for Iodine, please contact our sales team via the website or direct email, providing your specific requirements and delivery location.
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