Sodium periodate
SIGALD/311448 - ACS reagent, ≥99.8%
Synonym: Sodium (meta)periodate
CAS Number: 7790-28-5
Empirical Formula (Hill Notation): INaO4
Molecular Weight: 213.89
EC Number: 232-197-6
MDL Number: MFCD00003534
Linear Formula: NaIO4
Product Type: Chemical
| assay | ≥99.8% |
| 99.8-100.3% dry basis (ACS specification) | |
| cation traces | Mn: ≤3 ppm |
| form | crystalline powder |
| grade | ACS reagent |
| impurities | ≤0.02% other halogens (as Cl) |
| InChI | 1S/HIO4.Na/c2-1(3,4)5;/h( |
| InChI key | JQWHASGSAFIOCM-UHFFFAOYSA |
| mp | 300 °C (dec.) (lit.) |
| pH | 3.5-5.5 (25 °C, 107 g/L) |
| Quality Level | 200 ![]() |
| reaction suitability | reagent type: oxidant |
| SMILES string | [Na+].[O-]I(=O)(=O)=O |
| storage temp. | room temp |
| Application: | Sodium periodate can be used as an oxidizing agent: • In the selective oxidation of sulfides to sulfoxides. • For the oxidative cleavage of a variety of 1,2-diols to generate aldehydes or ketones. • In the oxidation of diaryl, dialkyl, and aryl alkyl selenides to the respective selenoxides. • In the selective alkene epoxidation and alkane hydroxylation reactions. • In the selective oxidation of activated cellulose to obtain dialdehyde cellulose (DAC) by cleavage of the bond between C2 – C3 in the glucose unit. • It can also be used as an iodinating agent for the iodination of arenes and halo compounds. |
| General description: | Sodium periodate is an inorganic salt commonly used as an oxidizing agent for various organic substrates and a co-oxidant in a few other oxidation reactions. The oxidation of sodium periodate takes place in a water medium, but an organic co-solvent is used for organic substrates that are insoluble in water. |
| Packaging: | 2.5 kg in glass bottle |
| Packaging: | 5, 100, 500 g in glass bottle |
| Symbol | ![]() ![]() ![]() GHS03,GHS05,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H271 - H314 - H372 - H410 |
| Precautionary statements | P210 - P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | O,T,C,N |
| Risk Statements | 8-34-48/25-50 |
| Safety Statements | 17-26-36/37/39-61 |
| RIDADR | UN3085 - class 5.1 - PG 1 - acidic - EHS - Oxidizing solid, corr |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.8%; 99.8-100.3% dry basis (ACS specification) |
| mp | 300 °C (dec.) (lit.) |
| Storage Temp. | room temp |
| UNSPSC | 12352302 |





