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Product Name: Potassium Iodate
Chemical Formula: KIO3
Synonyms: Iodic acid potassium salt
CAS Number: 7758-05-6
Recommended Use: Laboratory chemical, emergency radiation treatment
Manufacturer: Provided information from supplier should always be checked
Contact Information: Emergency telephone, address based on supplier or manufacturer
Classification: Oxidizing solid (Category 2), Acute toxicity oral (Category 4), Skin irritation (Category 2)
Label Elements: Pictograms—flame over circle, exclamation mark
Signal Word: Warning
Hazard Statements: May intensify fire; oxidizer. Harmful if swallowed. Causes skin irritation.
Precautionary Statements: Keep away from heat, sparks, and open flames. Wear protective gloves and eye protection. Wash skin thoroughly after handling. Avoid breathing dust.
Chemical Name: Potassium Iodate
Common Name: KIO3
Purity: Typically greater than 99%
Impurities: May contain trace moisture or other alkali metal salts
Inhalation: Move victim to fresh air, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash skin with plenty of water and soap
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing, seek immediate medical help
Ingestion: Rinse mouth, do not induce vomiting, seek medical advice
Most Important Symptoms: Nausea, skin irritation, respiratory discomfort
Advice for Medical Providers: Treat symptomatically, monitor respiratory and cardiovascular function
Suitable Extinguishing Media: Use water spray, foam, or dry chemical agents
Unsuitable Media: Carbon dioxide for large fires, since it may not cool down the oxidizer
Specific Hazards: Releases toxic fumes of iodine and potassium oxides under fire
Protective Equipment: Firefighters require self-contained breathing apparatus, chemical-resistant clothing
Firefighting Procedures: Fight fire from protected location, avoid inhaling fumes, use water spray to cool unopened containers
Personal Precautions: Evacuate area, avoid formation of dust, ventilate area
Protective Equipment: Wear dust mask, gloves, eye protection
Cleanup Methods: Sweep up material, place in suitable closest container for disposal, avoid raising dust, wash spill site thoroughly
Environmental Precautions: Prevent further leakage, avoid material entering drains or watercourses
Handling: Wear proper protective equipment, minimize dust generation, use only in well-ventilated areas
Storage Conditions: Keep container tightly closed in a dry, cool, secure location, away from combustibles, metals, and reducing agents
Storage Incompatibilities: Avoid storage with organic substances, acids, and finely divided metals
Exposure Limits: No established OSHA or ACGIH exposure limits, but use good laboratory practices
Engineering Controls: Local exhaust ventilation or chemical fume hood
Personal Protective Equipment: Safety glasses with side shields, protective gloves (nitrile/rubber), lab coat
Respiratory Protection: NIOSH-approved dust mask or respirator if dust becomes airborne
Hygiene Measures: Wash hands, forearms, and face thoroughly after handling material
Appearance: White crystalline powder
Odor: Odorless
Odor Threshold: Not applicable
pH: 4-6 (aqueous solution)
Melting Point: Decomposes above 560 °C
Boiling Point: Not applicable (decomposes)
Flash Point: Not flammable
Evaporation Rate: Not applicable
Flammability: Non-flammable, strong oxidizer
Vapor Pressure: Not volatile
Relative Density: 3.89 g/cm3
Solubility: Soluble in water (9.5 g/100 mL at 20 °C)
Partition Coefficient: Not available
Autoignition Temperature: Not applicable
Decomposition Temperature: Above 560 °C
Viscosity: Not applicable
Molecular Weight: 214.00 g/mol
Chemical Stability: Stable under recommended storage and handling conditions
Possibility of Hazardous Reactions: Can react vigorously with reducing agents, metals, organic materials
Conditions to Avoid: Heat, moisture, contact with combustible materials
Incompatible Materials: Strong acids, powdered metals, combustibles, organic substances
Hazardous Decomposition Products: Iodine vapors, potassium oxides, oxygen
Acute Toxicity: Oral LD50 (rat): about 2,780 mg/kg
Skin Corrosion/Irritation: Causes mild to moderate irritation
Serious Eye Damage/Irritation: Causes eye irritation
Respiratory Sensitization: Dust may cause irritation of nose and throat
Skin Sensitization: No data on sensitization
Symptoms: Nausea, vomiting, headache, skin redness
Chronic Effects: Potential thyroid effects due to iodine if ingested over long term
Mutagenicity / Carcinogenicity: No known carcinogenic or mutagenic effects
Other Data: Can cause methemoglobinemia; long-term or excessive inhalation/ingestion poses risk to thyroid function
Ecotoxicity: Harmful to aquatic organisms at elevated concentrations
Persistence and Degradability: Expected to be persistent due to inorganic nature
Bioaccumulation Potential: Iodine can be taken up by aquatic life, but bioaccumulation not significant for potassium iodate
Mobility in Soil: Highly soluble, likely to leach into groundwater
Additional Notes: Avoid release to environment, large spills may affect aquatic ecosystems
Waste Treatment Methods: Dispose as hazardous waste via licensed chemical disposal contractor
Contaminated Packaging: Rinse thoroughly before disposal, or handle as hazardous
Environmental Precautions: Do not discharge into drains or natural watercourses
UN Number: UN 1479
UN Proper Shipping Name: Oxidizing Solid, n.o.s. (Potassium iodate)
Hazard Class: 5.1 (oxidizer)
Packing Group: II
Labels Required: Oxidizer label
Special Transport Notes: Avoid transport with flammable or combustible materials.
Regulation References: Compliant with ADR/RID, IATA, IMDG transport regulations for hazardous goods
TSCA Status: Listed in the US Toxic Substances Control Act inventory
OSHA: Classified as hazardous under criteria for acute toxicity and oxidizer properties
SARA Title III: No specific reporting requirements
REACH Status (EU): Registered under REACH
Other International Regulations: Check local and national regulations for storage, use, and transport requirements
Labeling Requirements: Must carry hazard pictograms and clear labeling for workplace and transport safety
