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Product Name: Iodine Pentoxide
Chemical Formula: I2O5
Synonyms: Diiodine pentoxide, Iodic anhydride
CAS Number: 12029-98-0
Recommended Uses: Laboratory reagent, oxidizer in analytical chemistry
Supplier Information: Details provided on manufacturer’s packaging
Contact for Emergency: Refer to local poison control center, fire department, or supplier emergency number
GHS Classification: Oxidizing solid (Category 2), Acute Toxicity Oral (Category 4), Skin Corrosion/Irritation (Category 2), Eye Damage/Irritation (Category 2A)
Signal Word: Danger
Hazard Statements: Causes serious eye irritation, harmful if swallowed, causes skin irritation, may intensify fire through oxidizing properties
Pictograms: Flame over circle, exclamation mark
Precautionary Statements: Avoid breathing dust, wash skin thoroughly after handling, wear protective gloves and eye protection, keep away from heat and ignition sources
Potential Health Effects: Eye, skin, and respiratory tract irritation, risk of gastrointestinal disturbance if ingested, may aggravate pre-existing conditions involving thyroid function
Chemical Descriptor: Iodine Pentoxide
Concentration: 100%
CAS Number: 12029-98-0
Impurities or Additives: None indicated for reagent grade
Exposure Limits: No occupational exposure limits set for I2O5, but iodine dust limits may apply
Molecular Weight: 333.81 g/mol
Inhalation: Move person to fresh air, support breathing as needed, seek medical attention for persistent symptoms
Ingestion: Rinse mouth with water, do not induce vomiting, seek medical help without delay
Skin Contact: Remove contaminated clothing, wash skin thoroughly using plenty of water and mild soap, seek attention if irritation persists
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present, call for immediate medical help if irritation continues
Important Symptoms: Redness, burning, soreness of affected tissues, coughing possible for inhalation exposure, stomach pain or nausea if swallowed
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, flood area with water to cool containing vessels
Unsuitable Extinguishing Media: Avoid foam or regular dry powder because these may react with the substance
Hazards from Combustion: Releases toxic iodine vapors and possible oxides of iodine
Personal Protective Equipment: Full turnout gear with self-contained breathing apparatus
Specific Fire Hazards: Contains strong oxidizer, enhances combustion of flammable materials nearby
Advice for Firefighters: Approach from upwind, isolate hazard area, prevent runoff from entering drains or waterways
Explosion Sensitivity: May react with organics or combustibles to yield heat and gases
Personal Precautions: Wear respiratory protection and chemical-resistant gloves, avoid breathing dust, ensure adequate ventilation
Environmental Precautions: Prevent release to sewers, surface waters, or soil
Cleanup Methods: Scoop or sweep spilled material into appropriate container for disposal, avoid dry sweeping if dust can be raised, use damp cloth or vacuum with HEPA filter, label waste containers appropriately
Decontamination: Wash affected area with water, ventilate space after spill clean-up, dispose of contaminated cleaning materials as hazardous waste
Emergency Procedures: Notify safety personnel, evacuate non-essential personnel, follow site spill control protocols
Safe Handling: Use only in well-ventilated areas, avoid dust generation, minimize contact with skin, eyes, and clothing, keep containers tightly closed when not in use
Storage Conditions: Store in dry, cool, and well-ventilated place, out of direct sunlight and away from sources of ignition or heat
Segregation: Isolate from combustible substances, reducing agents, acids, and organic materials
Storage Container: Use corrosion-resistant, clear or amber glass containers with tight-fitting lids, avoid reactive metals or plastics
Storage Life: Stable when kept away from moisture, heat, and incompatibles
Other Precautions: Post visible warning signage, inspect storage area regularly for leaks or degradation of containers
Engineering Controls: Work in chemical fume hood, local exhaust ventilation for open handling
Eye Protection: Chemical splash goggles or face shield
Hand Protection: Nitrile or butyl rubber gloves sufficient, change gloves if contaminated
Skin and Body Protection: Wear lab coat with long sleeves, closed-toed shoes, and appropriate chemical-resistant apron
Respiratory Protection: NIOSH-approved respirator if exposure limits approached or exceeded, especially during spill response
Hygiene Practices: Wash hands thoroughly after handling, do not eat, drink, or smoke while working with the substance
Environmental Controls: Use containment trays or secondary barriers, regularly check for leaks and spills
Physical State: Solid
Appearance: White, crystalline powder
Odor: Odorless
Melting Point: Decomposes at 350°C, does not melt cleanly
Boiling Point: Not applicable; decomposes
Solubility in Water: Slightly soluble
Density: About 4.98 g/cm3
pH (aqueous solution): Acidic when dissolved
Vapor Pressure: Not volatile under standard conditions
Flash Point: Not flammable itself, but acts as an oxidizer
Partition Coefficient: Not measurable due to decomposition
Reactivity: Reacts with water and reducing agents to yield iodine and other hazardous products
Chemical Stability: Stable under normal storage conditions, decomposes with moisture, light, or extreme temperatures
Reactivity: Strong oxidizer, reacts vigorously with organic materials, reducing agents, finely divided metals, and acids
Conditions to Avoid: Contact with moisture, excessive heat, open flames, direct sunlight, contamination with incompatible materials
Hazardous Decomposition: Iodine vapors, oxides of iodine
Polymerization: Will not polymerize
Incompatible Materials: Organic compounds, sulfur, phosphorus, finely divided metals, ammonium compounds
Acute Toxicity Oral (LD50): Approximately 780 mg/kg (rat)
Inhalation Exposure: May cause respiratory tract irritation, symptoms include coughing, shortness of breath
Dermal Exposure: Prolonged or repeated contact can cause irritation, redness, or burns
Eye Contact: Severe irritation, risk of permanent eye damage without prompt flushing
Chronic Health Effects: Long-term exposure may lead to thyroid dysfunction, allergic sensitization, and dermatitis
Carcinogenicity: Not listed as carcinogen by IARC, NTP, or OSHA
Mutagenicity: Data not sufficient to classify
Specific Target Organ Toxicity: May target the thyroid gland due to iodine content
Ecotoxicity: Harmful to aquatic organisms, especially invertebrates and fish
Persistence and Degradability: Can persist as iodate or reduce to elemental iodine, may alter aquatic ecosystems
Bioaccumulation Potential: Iodine can accumulate in the tissues of plants and animals
Mobility in Soil: Moderate; leaches through soil as iodate, some sorption to organic matter possible
Other Adverse Effects: May contribute to eutrophication and water quality issues, disrupts thyroid function in exposed wildlife
Waste Disposal Methods: Collect and label waste in chemically compatible containers, do not mix with incompatible substances
Regulatory Requirements: Dispose following federal, state, and local environmental regulations, consult hazardous waste identification criteria
Sewage Disposal: Prohibited, never discharge to drain
Container Disposal: Triple rinse containers, puncture, and manage as hazardous waste
Recommended Treatment: Neutralize with reducing agent under controlled conditions, consult a licensed hazardous waste disposal service
Special Considerations: Keep records of quantity and disposal method, avoid disposal practices that risk release to the environment
UN Number: 1479
UN Proper Shipping Name: Oxidizing solid, n.o.s. (Iodine Pentoxide)
Transport Class: 5.1 (Oxidizer)
Packing Group: II
Hazard Label: Oxidizer
Marine Pollutant: Yes
Special Precautions for User: Keep containers upright and secure, prevent damage or contact with combustibles during transport
Transport Regulations: Conform to ADR/RID, IMDG, IATA guidelines for oxidizing solids
TSCA: Listed
SARA Title III: Not listed as extremely hazardous
OSHA: Covered by Hazard Communication Standard
State Regulations: Subject to right-to-know requirements in applicable states
WHMIS (Canada): D2B (Toxic), C (Oxidizing material)
REACH (Europe): Registration required for commercial import/use
Labeling Requirements: GHS hazard pictograms, signal word, hazard and precautionary statements
Other Information: Users should consult local, regional, and national guidelines for safe chemical management, regular safety training recommended for staff handling this material
