Oxidizers & Peroxides
REACH
Sodium periodate
CAS Number
7790-28-5
EC Number
232-197-6
What is Sodium periodate?
Sodium periodate (CAS 7790-28-5), also known as sodium metaperiodate, is a strong inorganic oxidizing agent used in industrial and laboratory-scale processes.
Where is Sodium periodate used?
- Pharmaceutical and biochemical manufacturing: oxidizes polysaccharides and glycoproteins
- Analytical and pharmaceutical synthesis: standard reagent
- Carbohydrate and glycol chemistry: selectively cleaves diol bonds
- Water treatment: biocide and oxidant controlling microbial growth
- Industrial effluent systems: breaks down organic contaminants
- Textile processing: modifies cellulose fibers, improving dye uptake and enabling functional finishing treatments
- Paper and pulp operations use it as a selective bleaching agent to improve brightness without degrading the underlying fiber structure.
Good to know: High-purity grades meeting reagent or ACS specifications are intended for pharmaceutical and analytical use.
Commercial specifications
- Technical grade for industrial use; high-purity grades meeting reagent or ACS specifications
- Packaging from small laboratory quantities to bulk industrial supply
- Moisture-controlled packaging standard for oxidizer-grade material
Other Names (Synonyms)
sodium m-periodate|periodic acid, sodium salt|Sodium metaperiodate|98W4A29X43|NaIO4 compound|RefChem:931926|Periodic acid (HIO4), sodium salt (1:1)
What are the physical properties of Sodium periodate?
Melting Point 300 °C (dec.) (lit.)
Boiling Point 300°C
Density 3.86 g/cm³ (solid)
Appearance white powder
Color White to almost white
Odor Odorless
Form Solid
Water Solubility 80 g/L (20 ºC)
Vapor Pressure 0Pa at 20℃
pH 3.5-5.5 (25℃, 0.5M in H2O)
Log P -1 at 20℃
How is Sodium periodate classified and handled safely? Learn More
Danger
GHS03· Oxidizing GHS05· Corrosive GHS06· Toxic GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H271 May cause fire or explosion; strong Oxidizer
H272 May intensify fire; oxidizer
H301 Toxic if swallowed
H302 Harmful if swallowed
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P220 Keep away from clothing and other combustible materials.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
Which trade and regulatory codes apply to Sodium periodate?
HS Code 28299080
UN Number 3087
ADR Class 5.1
Packing Group II
Storage Class 5.1A - Strongly oxidizing hazardous materials
WGK (Germany) 3