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iodine

CAS No.: 29972-72-3

Formula: I2

Molecular Weight: 257.81000

Suppliers: All(0) China Suppliers(21) Products(29)

Description
Basic Info
Price

What is iodine

**Introduction to Iodine** Iodine is a vital chemical element with the symbol *I* and atomic number 53. It is a lustrous, purple-black solid at room temperature that sublimes into a violet gas. Essential for human health, iodine is a key component of thyroid hormones, which regulate metabolism, growth, and development. Naturally found in seawater, soil, and certain foods like fish and dairy, iodine is widely used in dietary supplements, disinfectants, and medical imaging. It also plays a crucial role in water purification and industrial applications. Due to its antiseptic properties, iodine solutions like povidone-iodine are commonly used in wound care. A trace element, iodine is indispensable for both biological and industrial processes.

Preparation Process: Iodine can be prepared through several methods: 1. **From Caliche Ore**: Crushed caliche ore is treated with sodium bisulfite to extract sodium iodate (NaIO₃), which is then reduced with sodium hydrogen sulfite (NaHSO₃) to precipitate iodine. 2. **From Seaweed Ash**: Burned seaweed ash is leached with water, and the resulting solution is treated with manganese dioxide (MnO₂) and sulfuric acid (H₂SO₄) to liberate iodine vapor, which is then condensed. 3. **Laboratory Method**: Potassium iodide (KI) is reacted with manganese dioxide and concentrated sulfuric acid, producing iodine vapor that sublimes upon heating. 4. **Industrial Electrolysis**: Sodium iodide (NaI) or potassium iodide (KI) solutions are electrolyzed to produce iodine at the anode. Purification is achieved by sublimation.

Usage Scenarios: Iodine is a versatile compound with numerous applications across various fields. In medicine, it serves as a powerful antiseptic for wound disinfection and surgical site preparation. It is also used in contrast agents for medical imaging, such as X-rays and CT scans. In nutrition, iodine is essential for thyroid hormone production, preventing disorders like goiter and hypothyroidism. Industrially, iodine is employed in the synthesis of dyes, pharmaceuticals, and catalysts. It plays a role in water purification and as a stabilizer in nylon production. Additionally, iodine compounds are used in analytical chemistry for titration and as a reagent in laboratory tests.

iodine Basic Info

Chemical Name iodine

Synonyms -

CAS No. 29972-72-3

Molecular Formula I2

Molecular Weight 257.81000

PSA 0.00000

LogP 1.77140

iodine Price

Here is a rough price range for iodine in the listed countries. Note that prices can vary based on purity, quantity, and market conditions:

1. **United States**: $20–$50 per kg
2. **China**: $10–$30 per kg
3. **Russia**: $15–$40 per kg
4. **Germany**: $25–$60 per kg
5. **India**: $10–$25 per kg
6. **Japan**: $30–$70 per kg
7. **Brazil**: $20–$50 per kg
8. **South Korea**: $25–$55 per kg
9. **Philippines**: $15–$35 per kg
10. **United Kingdom**: $30–$65 per kg
11. **France**: $25–$60 per kg
12. **Mexico**: $20–$45 per kg
13. **Canada**: $25–$55 per kg
14. **South Africa**: $15–$40 per kg
15. **Egypt**: $10–$30 per kg
16. **Turkey**: $15–$35 per kg
17. **Thailand**: $10–$30 per kg
18. **Indonesia**: $10–$25 per kg

If no specific data is available for a country, it is marked as "No results." These ranges are approximate and subject to change.