Iodic acid (HIO3), silver(1+) salt
Silver iodate
CAS: 7783-97-3
Molecular Formula: AgHIO3
Iodic acid (HIO3), silver(1+) salt - Names and Identifiers
| Name | Silver iodate |
| Synonyms | SILVER IODATE Silver iodate SILVER(I) IODATE Silver(1+)iodate silver(1+) iodate SILVER IODATE REAGENT Iodicacidsilver(1+)salt Iodicacid,silver(1+)salt iodicacid(hio3),silver(1++)salt Iodic acid (HIO3), silver(1+) salt |
| CAS | 7783-97-3 |
| EINECS | 232-039-6 |
| InChI | InChI=1/Ag.HIO3/c;2-1(3)4/h;(H,2,3,4)/q+1;/p-1 |
Iodic acid (HIO3), silver(1+) salt - Physico-chemical Properties
| Molecular Formula | AgHIO3 |
| Molar Mass | 283.78 |
| Density | 5.525g/mLat 25°C(lit.) |
| Melting Point | >200°C (dec.) |
| Water Solubility | Practically insoluble in water. Soluble in aqueous ammonia |
| Appearance | Powder |
| Specific Gravity | 5.53 |
| Color | White |
| Solubility Product Constant(Ksp) | pKsp: 7.50 |
| Merck | 14,8515 |
| Sensitive | Light Sensitive |
| Use | Used as a reagent for trace analysis of chlorine |
Iodic acid (HIO3), silver(1+) salt - Risk and Safety
| Risk Codes | R8 - Contact with combustible material may cause fire R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 1479 5.1/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 28432900 |
| Hazard Class | 5.1 |
| Packing Group | II |
Iodic acid (HIO3), silver(1+) salt - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Background | silver iodate itself is an oxidizing agent that is commonly used to measure small amounts of chloride in blood and as a pharmaceutical raw material. And can be used as a nucleating agent for artificial rainfall together with silver iodide and copper iodide. There are few reports on the preparation of silver iodate. Chinese Patent CN 1280199C discloses a preparation method of pure nano silver iodate. The silver nitrate solution is slowly added dropwise to the potassium iodate solution in the solution containing the more complex dispersant and complexing agent, and the solution is allowed to settle for a period of time, and nano-sized silver iodate particles are obtained after a series of treatments. This method has higher requirements on the production process, and the dispersant and complexing agent are expensive, which is not suitable for large-scale production, and the surface of the particles is coated by the dispersant, which affects the performance of the material, thus, the use of nucleating agents for artificial rainfall is emphasized in the patent. |
| Application | silver iodate is a strong oxidant. Silver iodate, together with silver iodide and copper iodide, can form a complex as a nucleating agent in artificial weather. The effect of making artificial rainfall composite catalyst by using the above compound powder of nanometer ultrafine particles is more prominent. |
| preparation | a. The following two solutions were prepared respectively: clear aqueous solution of silver nitrate containing: silver nitrate 0.4M/L, citric acid (complexing agent) 0.136M/L; A clear aqueous solution of potassium iodate containing: potassium iodate 0.4M/L, citric acid (complexing agent) 0.136M/L, sodium dodecylsulfonate (dispersant) 0.04M/L; B. The silver nitrate clear aqueous solution prepared above is slowly added dropwise to the potassium iodate clear aqueous solution at normal temperature and normal pressure, and at the same time, it is stirred thoroughly, and the precipitation of nano-silver iodate is obtained after being left to stand and settled; c. The nano-silver iodate precipitate is filtered, washed three times with water, and dried at a temperature of 80 to 100 ° C. For 1 to 2.5 hours to obtain a nano-silver iodate powder having a particle size of 55 to 80nm. |
| purpose | reagent for micro-analysis of chlorine |
Last Update：2024-05-21 12:15:27
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