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Product Name: Potassium Iodide
Chemical Formula: KI
CAS Number: 7681-11-0
Manufacturer: [Company Information]
Recommended Use: Laboratory chemical, pharmaceutical aid, nutritional supplement, radiation exposure prophylaxis
Emergency Contact: [Emergency Phone Number]
Synonyms: Potassium monoiodide, iodide of potash, potassium salt of hydrogen iodide
Classification: Eye irritation, skin irritation, acute toxicity (oral and inhalation), specific target organ toxicity
GHS Label Elements: Exclamation mark, Health hazard
Hazard Statements: Causes skin and serious eye irritation; harmful if swallowed or inhaled; may cause thyroid dysfunction on repeated exposure; dust may cause respiratory irritation
Precautionary Statements: Avoid inhaling dust, wash hands thoroughly after handling, wear protective gloves and eye protection; avoid unnecessary contact with skin or eyes; do not eat, drink, or smoke during use
Potential Health Effects: Allergic reactions, gastrointestinal upset, thyroid effects, eye and skin irritation, possible skin rashes from long-term contact; sensitive populations such as those with pre-existing thyroid disorders face higher risks
Main Ingredient: Potassium Iodide — 99% or greater
Other Components: Trace impurities may include sodium iodide, moisture (water)
Common Additives: None listed for laboratory or reagent-grade material
Molecular Weight: 166 g/mol
Eye Contact: Rinse immediately with plenty of water for 15 minutes, lifting upper and lower eyelids; seek medical attention if irritation persists
Skin Contact: Wash thoroughly with soap and water; remove contaminated clothing; obtain medical advice if symptoms develop
Inhalation: Move person to fresh air; monitor for difficulty breathing or coughing; seek medical attention if symptoms persist or worsen
Ingestion: Rinse mouth with water; do not induce vomiting; seek immediate medical attention, especially for vulnerable populations
Most Important Symptoms: Cough, irritation of eyes or skin, sore throat, gastrointestinal upset, headache, possible allergic response
Notes for Medical Personnel: Treat symptomatically; monitor thyroid function if large exposure suspected
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Hazards From Combustion: Emits toxic iodine fumes, potassium oxides, and may release hydrogen iodide gas in fire conditions
Protective Equipment: Firefighters use full protective clothing, self-contained breathing apparatus
Special Precautions: Move containers from fire area if possible; avoid inhaling fumes; potential for evolving corrosive or toxic vapors makes respiratory protection critical
Explosion Data: Material not explosive under normal conditions, though dust clouds could ignite if strong ignition source present
Personal Protection: Wear dust mask, protective gloves, goggles, laboratory coat; remove all sources of ignition; avoid breathing dust
Environmental Precautions: Prevent entry into waterways, sewers, or soil; use barriers or absorbent materials to contain
Spill Cleanup: Sweep up and place in suitable container for disposal; ventilate area; wash residue with plenty of water
Decontamination: Clean surfaces thoroughly with water; do not use acids, which may release toxic fumes
Emergency Procedures: Notify environmental management authorities if major release contaminates the environment
Storage Requirements: Keep in tightly closed container; store in cool, dry, well-ventilated area; protect from light, moisture, and incompatible substances such as acids and oxidizers
Handling Precautions: Minimize dust generation and accumulation; use only with adequate ventilation; avoid contact with eyes, skin, and clothing; ensure good laboratory hygiene by washing hands before eating or drinking
Incompatible Materials: Strong acids, alkali metals, strong oxidizers, strong reducing agents; can react violently when mixed improperly
Storage Temperatures: Room temperature; avoid excess heat above 40°C and protect from freezing
Special Considerations: Store separately from chemicals that can generate fire or toxic gases with iodides
Permissible Exposure Limits: OSHA and ACGIH have not established workplace limits specific for potassium iodide; general dust limits apply
Engineering Controls: Use local exhaust; laboratory fume hood for dust-generating activities; general area ventilation
Personal Protective Equipment: Safety goggles, nitrile or neoprene gloves, laboratory coat; dust mask or P2 respirator for heavy dust exposure
Hygiene Practices: Change contaminated clothing; wash thoroughly after use; do not use near food or beverages
Monitoring: Regular checks for airborne dust; monitor thyroid function for chronically exposed workers if medically necessary
Appearance: White, odorless, crystalline powder or granules
Odor: Odorless
Solubility: Highly soluble in water (140 g/100 ml at 20°C); soluble in glycerol; sparingly soluble in alcohol
pH: 6.0 – 9.0 (10% aqueous solution)
Melting Point: 681°C
Boiling Point: Decomposes before boiling
Density: 3.13 g/cm³
Vapor Pressure: Negligible at room temperature
Flash Point: Not flammable
Evaporation Rate: Not applicable
Partition Coefficient: Not available
Explosive Properties: Not explosive under normal use
Chemical Stability: Stable under normal conditions; prolonged exposure to air leads to slow oxidation and yellow discoloration from free iodine formation
Reactivity: Reacts with acids, releasing toxic hydrogen iodide gas and free iodine
Hazardous Reactions: Strong oxidizers speed decomposition; contact with alkali metals may cause violent reactions
Decomposition Products: Iodine, hydrogen iodide, potassium oxide
Conditions to Avoid: Exposure to moisture, heat, acids, and oxidizers
Polymerization: Will not occur
Routes of Exposure: Inhalation, ingestion, skin, eyes
Acute Toxicity: Oral LD50 (rat) ~ 2,770 mg/kg
Chronic Effects: Prolonged or repeated exposures may impact thyroid function, cause skin eruptions, or trigger allergic response
Symptoms: Headache, nausea, abdominal pain, vomiting, cough, skin rashes, tear flow increase, potential fever
Sensitization: Skin may become sensitized after regular exposure
Target Organs: Thyroid, skin, eyes, respiratory tract
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, or OSHA
Reproductive Toxicity: Not enough evidence for specific warnings; use caution in pregnant or lactating users due to thyroid function impact
Ecotoxicity: Toxic to aquatic organisms; long-term effect on aquatic environments not thoroughly documented, though iodide ions interfere with natural water chemistry
Persistence and Degradability: Breaks down by dissociation in water; forms iodides, which persist and may accumulate in soils and aquatic environments
Bioaccumulation: Low potential for bioaccumulation in mammals; accumulation in plants or aquatic organisms possible
Mobility in Soil: Highly soluble and mobile in water, may leach to groundwater
Other Adverse Effects: Disruption of algae and microorganism populations in contaminated environments; may contribute to eutrophication in water bodies
Disposal Methods: Dispose of in accordance with local, state, and federal regulations; chemical residues to be handed to licensed waste disposal contractors
Incineration: Only permitted with proper emission scrubbing due to release of toxic iodine compounds
Waste Treatment: Large-scale wash water should be treated before discharge to sewer or environment
Container Disposal: Decontaminate containers before recycling or dispose as hazardous waste
Precautions: Do not flush to surface water; avoid release to environment without treatment
Special Instructions: Maintain all documentation for disposal for regulatory compliance
UN Number: Not regulated as a hazardous material for ground, air, or sea transport
Proper Shipping Name: Potassium Iodide
Hazard Class: Not classified as dangerous for transport under current US DOT or IATA regulations
Packing Group: Not applicable
Environmental Hazard: Not listed as marine pollutant
Transport Precautions: Keep container tightly sealed, protect from moisture, use standard chemical containers
TSCA: Listed in the United States Toxic Substances Control Act inventory
OSHA: Hazardous by definition under Hazard Communication Standard; requires labeling and communication
SARA Title III: Not an Extremely Hazardous Substance; not subject to specific reporting under Sections 302, 313
California Proposition 65: Not listed
EPA: Not regulated as hazardous waste at federal level, though local state classifications may vary
WHMIS (Canada): Classified as toxic material
ECHA (EU): Registered, follows REACH; Safety Data Sheet required for commercial transactions
Labeling Requirements: Chemical name, warning symbol for irritant, hazard and precaution statements per GHS/CLP standards
Workplace Controls: Employers must provide training and documentation on safe handling and emergency procedures
