Material Safety Data Sheet 
Iodine pentoxide, 98%  五氧化二碘，碘酐
Section 1 - Chemical Product and Company Identification 
MSDS Name: Iodine pentoxide, 98% 
Catalog Numbers: 21250-0000, 21250-0250, 21250-1000 
Synonyms: Iodic anhydride 
Company Identification:  Acros Organics BVBA
Janssen Pharmaceuticalaan 3a
2440 Geel, Belgium 
Company Identification: (USA) Acros Organics
One Reagent Lane
Fair Lawn, NJ 07410 
For information in the US, call:  800-ACROS-01
For information in Europe, call: +32 14 57 52 11
Emergency Number, Europe: +32 14 57 52 99
Emergency Number US: 201-796-7100
CHEMTREC Phone Number, US:  800-424-9300
CHEMTREC Phone Number, Europe:  703-527-3887 
Section 2 - Composition, Information on Ingredients 
CAS# Chemical Name: % EINECS#
12029-98-0 Iodine pentoxide 98% 234-740-2
Hazard Symbols: O C 
       
Risk Phrases: 34 8 
Section 3 - Hazards Identification 
EMERGENCY OVERVIEW 
Causes burns. Contact with combustible material may cause fire. 
Potential Health Effects
Eye: Causes eye burns. 
Skin: Causes skin burns. 
Ingestion: Causes gastrointestinal tract burns. 
Inhalation: Causes chemical burns to the respiratory tract. 
Chronic: 
Section 4 - First Aid Measures 
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. 
Skin: Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. 
Ingestion: Do not induce vomiting. Get medical aid immediately. 
Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. 
Notes to Physician: Treat symptomatically and supportively. 
Section 5 - Fire Fighting Measures 
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Strong oxidizer. Contact with other material may cause fire. 
Extinguishing Media: Use foam, dry chemical, or carbon dioxide. 
Section 6 - Accidental Release Measures 
General Information: Use proper personal protective equipment as indicated in Section 8. 
Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. 
Section 7 - Handling and Storage 
Handling: Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood. 
Storage: Do not store near combustible materials. Store in a cool, dry place. Store in a tightly closed container. Corrosives area. 
Section 8 - Exposure Controls, Personal Protection 
Engineering Controls: 
 Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. 
Exposure Limits
 CAS# 12029-98-0
 
Personal Protective Equipment 
Eyes: Wear chemical splash ggles. 
Skin: Wear appropriate protective gloves to prevent skin exposure. 
Clothing: Wear appropriate protective clothing to prevent skin exposure. 
Respirators: Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
 
Section 9 - Physical and Chemical Properties 
 
Physical State: Powder
Color: white to light yellow 
Odor: odorless 
pH: 1.1 (10% aq. solution) 
Vapor Pressure: Not available 
Viscosity: Not available 
Boiling Point: Not available 
Freezing/Melting Point: Not available 
Autoignition Temperature: Not available 
Flash Point: Not available 
Explosion Limits: Lower: Not available
Explosion Limits: Upper: Not available
Decomposition Temperature: 
Solubility in water: Soluble
Specific Gravity/Density: 
Molecular Formula: I2O5 
Molecular Weight: 333.8 
Section 10 - Stability and Reactivity 
Chemical Stability: Stable under normal temperatures and pressures. May decompose when exposed to light. 
Conditions to Avoid: Incompatible materials, light, combustible materials. 
Incompatibilities with Other Materials Strong reducing agents, strong acids, finely powdered metals. 
Hazardous Decomposition Products Hydrogen iodide. 
Hazardous Polymerization Will not occur. 
Section 11 - Toxicological Information 
RTECS#: CAS# 12029-98-0: None listed
 
LD50/LC50: RTECS: Not available. 
Carcinogenicity: Iodine pentoxide - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.
 
Other: The toxicological properties have not been fully investigated. 
Section 12 - Ecological Information 
Not available Section 13 - Disposal Considerations 
Dispose of in a manner consistent with federal, state, and local regulations. 
Section 14 - Transport Information 

 IATA  IMO  RID/ADR 
Shipping Name:  OXIDIZING SOLID, CORROSIVE, N.O.S.*  OXIDIZING SOLID, CORROSIVE, N.O.S.  OXIDIZING SOLID, CORROSIVE, N.O.S. 
Hazard Class:  5.1 (8)  5.1 (8)  5.1 (8) 
UN Number:  3085  3085  3085 
Packing Group:  III  III  III 

Section 15 - Regulatory Information 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: O C 
Risk Phrases:
R 34 Causes burns. 
R 8 Contact with combustible material may cause fire. 
 
Safety Phrases:
S 17 Keep away from combustible material. 
S 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S 36/37/39 Wear suitable protective clothing, gloves and eye/face protection. 
S 45 In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).  
 
WGK (Water Danger/Protection)
CAS# 12029-98-0: Not available
 
Canada
CAS# 12029-98-0 is listed on Canada's DSL List
 
US Federal
TSCA
CAS# 12029-98-0 is listed on the TSCA Inventory.