Potassium periodate
- CAS No.
- 7790-21-8
- Chemical Name:
- Potassium periodate
- Synonyms
- POTASSIUM METAPERIODATE;ACS， 99.8%-100.3%;POTASSIUM PERIODATE;Potassium ｍ-Perioda;POTASSIUM M-PERIODATE;PotassiumPeriodateKIO4;Potassium periodate 99%;PotassiumMetaperiodateGr;potassium periodate, acs;Potassium metaperiodiate
- CBNumber:
- CB7738229
- Molecular Formula:
- H2IKO4
- Molecular Weight:
- 232.01
- MOL File:
- 7790-21-8.mol
- Modify Date:
- 2023/9/13 14:32:51
| Melting point | 582 °C |
|---|---|
| Boiling point | explodes [HAW93] |
| Density | 3.618 |
| vapor density | 7.9 (vs air) |
| storage temp. | 2-8°C |
| solubility | H2O: 0.01 M at 20 °C, clear, colorless |
| form | Powder/Solid |
| color | White to off-white |
| Specific Gravity | 3.618 |
| PH | pH (5g/l, 25℃) : 4.5～5.5 |
| Odor | Odorless |
| PH Range | 4.5 - 5.5 |
| Water Solubility | 0.42 g/100 mL (20 ºC) |
| Merck | 14,7654 |
| Stability | Stable. Strong oxidizer - contact with combustible materials may cause fire. Incompatible with organic material, combustible material, strong reducing agents, powdered metals. |
| CAS DataBase Reference | 7790-21-8(CAS DataBase Reference) |
| EPA Substance Registry System | Periodic acid (HIO4), potassium salt (7790-21-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |     GHS03,GHS05,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H271-H314-H372-H400 | |||||||||
| Precautionary statements | P210-P260-P273-P280-P303+P361+P353-P305+P351+P338 | |||||||||
| Hazard Codes | O,Xi | |||||||||
| Risk Statements | 8-36/37/38 | |||||||||
| Safety Statements | 17-26-36-37/39 | |||||||||
| RIDADR | UN 1479 5.1/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 3 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 5.1 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 28299000 | |||||||||
| NFPA 704 |
|
Potassium periodate price More Price(12)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 210056 | Potassium periodate ACS reagent, 99.8% | 7790-21-8 | 100G | ₹2749.55 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 210056 | Potassium periodate ACS reagent, 99.8% | 7790-21-8 | 500G | ₹12015.75 | 2022-06-14 | Buy |
| ALFA India | ALF-022896-22 | Potassium periodate, ACS, 99.8%-100.3% | 7790-21-8 | 100g | ₹6942 | 2022-05-26 | Buy |
| ALFA India | ALF-022896-14 | Potassium periodate, ACS, 99.8%-100.3% | 7790-21-8 | 25g | ₹2998 | 2022-05-26 | Buy |
| ottokemi | P 2377 | Potassium periodate , GR 99%+ | 7790-21-8 | 100gm | ₹2241 | 2022-05-26 | Buy |
Potassium periodate Chemical Properties,Uses,Production
Chemical Properties
colourless crystals or white crystalline powder
Physical properties
Colorless tetragonal crystals; density 3.618 g/cm3; melts at 582°C; slightly soluble in water at ordinary temperatures, 0.42 g/100mL at 20°C; moderately soluble in hot water, 4.4 g/100mL at 80°C.
Uses
For the colorimetric determination of Mn (oxidizes manganese compounds to permanganates), as oxidizing agentPotassium periodate is used as an oxidizing agent in organic synthesis and an analytical reagent for the determination of potassium and cerium. It is also used in colorimetric estimation of manganese. It reacts with ammonium cerium(IV) nitrate to prepare tris[trinitratocerium(IV)] paraperiodate which finds application as an oxidant.
Preparation
Potassium periodate can be prepared by oxidation of potassium iodate with a powerful oxidizing agent such as potassium permanganate, chlorine or bromine in basic solution:
IO3ˉ+ Cl2+ 2OHˉ→IO4ˉ+ 2Clˉ+ H2O
Also, the salt may be prepared by electrolysis.
Production Methods
Potassium periodate, KlO4, white solid, formed by electrolysis of potassium iodate under proper conditions.
General Description
Potassium (meta)periodate exhibits strong oxidizing properties in acidic medium.
Hazard
Fire risk in contact with organic materials, strong oxidizing agent. Strong irritant to tissue.
Purification Methods
Crystallise it from distilled water. Its solubility in H2O is 0.2% at 0o, 0.4% at 20o, 4.4% at 80o. and 7.9% at 100o. [Hill Inorg Synth I 171 1939, Schmeisser in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 325 1963.]
Potassium periodate Preparation Products And Raw materials
Raw materials
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| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| Advent Chembio Private Limited | 08046036709 | Mumbai, India | 110 | 58 | Inquiry |
| Samrat Remedies Limited | 08046036965 | Mumbai, India | 11 | 58 | Inquiry |
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