A4982212
Iodic acid , AR,99.5% , 7782-68-5
CAS NO.：7782-68-5
Empirical Formula: HIO3
Molecular Weight: 175.91
MDL number: MFCD00011348
EINECS: 231-962-1
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 110°C (dec.) |
| Density | 4.63 g/cm3 |
| solubility | Water (Slightly) |
| pka | 1.28±0.53(Predicted) |
| form | Solid |
| color | White to off-white |
| Specific Gravity | 4.629 |
| PH | pKa1= 0.70(25℃) |
| Water Solubility | 269 g/100 mL (20 ºC) |
| Sensitive | Light Sensitive |
| Merck | 14,5012 |
| Stability: | Stable. Incompatible with strong reducing agents, alcohols, organic materials. Light-sensitive. |
| InChI | 1S/HIO3/c2-1(3)4/h(H,2,3,4) |
| InChIKey | ICIWUVCWSCSTAQ-UHFFFAOYSA-N |
| SMILES | OI(=O)=O |
| CAS DataBase Reference | 7782-68-5(CAS DataBase Reference) |
| EPA Substance Registry System | Iodic acid (7782-68-5) |
Description and Uses
Iodic acid is used in analytical chemistry laboratories to standardize solutions of both weak and strong bases using methyl red or methyl orange as the indicator. It acts as a key starting material to synthesize sodium or potassium iodate, thereby increasing the iodine content of salt.
Safety
| Symbol(GHS) |   GHS03,GHS05 |
| Signal word | Danger |
| Hazard statements | H272-H290-H314 |
| Precautionary statements | P210-P220-P280-P234-P260-P264-P370+P378-P390-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P305+P351+P338-P406-P405-P501 |
| Hazard Codes | O,C |
| Risk Statements | 8-34 |
| Safety Statements | 17-26-36/37/39-45 |
| RIDADR | UN 3085 5.1/PG 2 |
| WGK Germany | 3 |
| F | 8 |
| TSCA | TSCA listed |
| HazardClass | 5.1 |
| PackingGroup | II |
| HS Code | 28111980 |
| Storage Class | 5.1B - Oxidizing hazardous materials |
| Hazard Classifications | Ox. Sol. 2 Skin Corr. 1B |
| REACH Registrations | Active |
| Limited Quantities | 1.0 kg (2.2 lbs) (solid) |
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) |
