Product Name: Bis(4-Tert-Butylphenyl)Iodonium [(1S,4R)-7,7-Dimethyl-2-Oxobicyclo[2.2.1]Heptan-1-Yl]Methanesulfonate
Synonyms: Iodonium salt photoinitiator, Photoacid generator
CAS Number: 125051-32-3
Recommended Use: Material used in electronics, photolithography, and industrial polymerization processes
Supplier Contact: Customer service and technical support lines for the supplier’s chemical safety officer and 24-hour emergency number
Emergency Telephone: Refer to local, regional, or national poison control center
GHS Classification: Acute toxicity (oral), Eye irritation, Skin irritation
Hazard Statements: Harmful if swallowed, causes skin and eye irritation, possible respiratory hazards on prolonged exposure
Pictograms: Exclamation mark, Health hazard
Signal Word: Warning
Precautionary Statements: Avoid breathing dust or vapors. Use only outdoors or in well-ventilated area. Wear protective gloves, protective clothing, and eye or face protection. Wash thoroughly after handling. Avoid release to environment.
Chemical Name: Bis(4-Tert-Butylphenyl)Iodonium [(1S,4R)-7,7-Dimethyl-2-Oxobicyclo[2.2.1]Heptan-1-Yl]Methanesulfonate
Chemical Formula: C29H41IO4S
Component: Main component above 98% by weight
Impurities: Trace amounts of unidentified organic substances; below reporting thresholds based on current analytical methods
Additives: No intentional additives reported
Inhalation: Move affected person to fresh air. Rest in a position comfortable for breathing. Seek medical attention if symptoms appear and persist.
Skin Contact: Wash thoroughly with plenty of water and mild soap for at least fifteen minutes. Remove contaminated clothing. Get medical attention if irritation develops.
Eye Contact: Rinse immediately with copious amounts of water for several minutes, lifting eyelids occasionally. Remove contact lenses, if present. Seek medical attention for persistent irritation or redness.
Ingestion: Rinse mouth with water. Do not induce vomiting unless directed by medical personnel. Seek immediate medical advice if symptoms develop or quantity ingested is significant.
Suitable Extinguishing Media: Use carbon dioxide, dry chemical powder, or alcohol-resistant foam. Water spray may help cool containers.
Unsuitable Extinguishing Media: Avoid direct water stream, which may spread material.
Specific Hazards During Fire: Toxic fumes of iodine compounds, carbon oxides, and sulfur oxides released in combustion. Vapors may be heavier than air.
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective gear required. Approach fire from upwind and isolate area.
Additional Instructions: Remove all nearby ignition sources. Evacuate non-essential personnel.
Personal Precautions: Evacuate unnecessary personnel from the area; wear suitable protective gear, including gloves, eye protection, and if dust is generated, a particulate respirator.
Environmental Precautions: Prevent entry to drains, watercourses, or soil. Notify local environmental authorities if necessary.
Spill Clean-Up: Use inert absorbent materials such as sand or vermiculite for containment. Sweep into properly labeled waste container. Wash area thoroughly with plenty of water while avoiding run-off.
Reference to Other Sections: For disposal and personal protection, refer to sections on disposal considerations and exposure control.
Handling: Use in a chemical fume hood or area with adequate ventilation. Avoid breathing dust; refrain from creating aerosols. Wear protective clothing and avoid contact with skin and eyes. Use tools and containers designed for chemical use.
Storage: Store in original container, tightly closed, in a cool, dry, and well-ventilated location. Keep away from incompatible materials such as strong oxidizers and reducing agents. Protect from sunlight, humidity, and temperature extremes.
Specific End Uses: Reserved for industrial and laboratory use only; not suitable for consumer product applications.
Control Parameters: No established occupational exposure limits by OSHA, ACGIH, or NIOSH. Use best industrial hygiene practices.
Engineering Controls: Fume hood, exhaust ventilation; eyewash stations and safety showers available at work locations.
Individual Protection Measures: Chemical resistant gloves (nitrile, neoprene), tightly fitting safety goggles, impervious lab coats or coveralls.
Respiratory Protection: NIOSH-approved particulate respirator where dust or aerosol forms.
Environmental Exposure Controls: Avoid environmental contamination; employ spill control plans where applicable.
Appearance: Off-white to pale yellow crystalline powder, slightly pungent odor
Melting Point: Typically ranges from 170°C to 185°C
Boiling Point: Decomposition occurs before boiling
Solubility: Slightly soluble in water; good solubility in polar organic solvents (acetonitrile, DMF, DMSO)
Odor: Mild, aromatic odor
Vapor Pressure: Not measurable at ambient temperature
pH: Not applicable
Partition Coefficient: No data available
Flash Point: Not applicable (solid)
Density: Approximately 1.34 g/cm³
Viscosity: Not applicable
Other Physical Data: Stable under recommended storage conditions, may appear slightly hygroscopic
Chemical Stability: Stable under ambient conditions recommended for handling and storage.
Reactivity: Inert toward most materials stored and handled correctly.
Hazardous Reactions: Contact with strong reducing agents or uncontrolled heating breaks down compound, releasing fumes.
Conditions to Avoid: Moisture, open flames, sources of ignition, temperature extremes, intense UV or visible light.
Incompatible Materials: Strong oxidizing and reducing agents; alkalis and acids in concentrated forms.
Hazardous Decomposition Products: Iodine, sulfur dioxide, carbon monoxide, carbon dioxide, and various organic fragments.
Routes of Exposure: May enter body through ingestion, inhalation, or via skin and eyes.
Acute Effects: Irritation to skin, eyes, and respiratory tract. Swallowing can produce gastrointestinal issues.
Chronic Effects: Repeated skin contact could lead to sensitization. Prolonged inhalation may have adverse respiratory outcomes.
Toxicity Data: LD50 (oral, rat): estimated greater than 2000 mg/kg; detailed animal data limited.
Carcinogenicity: Components not listed as carcinogenic by NTP, IARC, or OSHA.
Other Effects: Limited data; no known mutagenic or reproductive hazards in available reports.
Ecotoxicity: Moderately toxic to aquatic organisms; releases could affect waterway systems through bioaccumulation of organic iodine.
Persistence and Degradability: Compound demonstrates moderate persistence; slow to degrade in soil and aquatic systems.
Bioaccumulation Potential: Possibility of accumulation in aquatic habitats due to molecular characteristics.
Mobility in Soil: Limited; predominantly sticks to particulates and organic content.
Other Adverse Effects: No evidence of ozone depletion or endocrine disruption from currently available studies.
Disposal Methods: Collect material in sealed container for hazardous chemical disposal via incineration at permitted facility.
Contaminated Packaging: Dispose of packaging through hazardous waste process; remove labels if recycled.
Local Regulations: Comply with all regulatory and licensing requirements; contact local authorities for guidance on regional requirements.
Sewage Disposal: Never discharge into sewers or natural waterways.
Additional Advice: Employ a licensed professional waste disposal service for handling significant quantities or spills.
UN Number: UN3077 (if regulated as environmentally hazardous under specific shipment conditions)
Transport Hazard Class: 9 (Miscellaneous Dangerous Substances; according to applicable regulations for significant shipment quantities)
Packing Group: III
Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s. (contains Bis(4-Tert-Butylphenyl)Iodonium salt)
Marine Pollutant: Yes, under international guidance (IMDG Code)
Special Transport Precautions: Secure against movement; maintain dry, sealed containers; prevent breakage and spillage during loading and transit.
OSHA Status: Not regulated specifically, but handled as a hazardous chemical under Hazard Communication Standard.
TSCA Inventory: Present
SARA Title III: Not listed as an extremely hazardous substance or Section 313 chemical.
REACH Status (EU): Under research and notification for uses in the European market; consult Safety Data Sheet for specific compliance.
Other Applicable Regulations: Subject to requirements from local, regional, and international authorities when stored, transported, or disposed. Always verify current legal obligations when handling or distributing.
