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Common Name: Dicyclohexyl Peroxydicarbonate Chemical Family: Peroxydicarbonate esters Physical Appearance: Milky-white or pale suspension in water, faint odor Intended Use: Polymerization initiator in plastics manufacturing CAS Number: 28061-84-1 Molecular Formula: C14H22O6 Synonyms: DCHP, DCHPC
Classification: Organic peroxide, type E; Sensitizer Label Elements: Explosive thermal decomposition, may ignite with moderate heat Hazards: May cause thermal burns and skin sensitization, risk to the eyes and respiratory system if mist inhaled, moderate aquatic toxicity Personal Risk: Combustion risk at higher temperatures, potential for exothermic runaway if improperly handled or contaminated
Dicyclohexyl Peroxydicarbonate: 30-42% Water: 58-70% Stabilizers: Minor, potentially surfactants or dispersants Impurities: May include minimal traces of reactants, not typically significant in risk profile
Eyes: Rinse gently with clean water for at least 15 minutes, seek medical attention if irritation develops Skin: Remove contaminated clothing, wash skin with plenty of soap and water, get advice if redness or discomfort persist Inhalation: Move person to fresh air, assist breathing if difficulty develops, consult a physician promptly Ingestion: Rinse mouth, do not induce vomiting, obtain immediate medical evaluation Awareness: Early intervention helps avoid escalation of minor symptoms
Suitable Extinguishing Media: Use foam, dry powder, or CO2, avoid direct water streams due to reactivity Specific Dangers: Thermal decomposition releases toxic gases including carbon monoxide and carbon dioxide, fire can spread rapidly in storage PPE for Firefighters: Complete chemical protection including positive pressure breathing apparatus Additional Advice: Cool containers with gentle spray if feasible, avoid run-off contamination, contain area well
Containment: Stop release at the source, use inert absorbents such as sand, avoid materials like sawdust that might initiate reaction Personal Safety: Isolate area, use chemical-resistant gloves and splash-proof goggles Cleanup: Collect residue in designated organic peroxide-compatible containers, ventilate area thoroughly Environmental Protection: Prevent entry to drains or water systems, notify regulatory authorities of significant spills
Handling: Keep containers tightly closed, open only in well-ventilated areas, avoid friction, shock, and contamination with incompatible materials Storage: Store at low temperatures, best below 10°C, separate from flammable materials and oxidizers, use explosion-proof equipment Employee Responsibility: Train personnel in chemical risk, use dedicated tools and PPE, never mix with unknown substances
Ventilation: Local exhaust preferred in work zones, supplement with general ventilation Respiratory Protection: Use approved masks for organic vapors if aerosol generation is possible Skin Protection: Full chemical-resistant gloves, laboratory coat or coveralls, boots Eye Protection: Tight-fitting safety goggles plus a face shield if splashing is likely Hygiene: No eating or smoking in work areas, thorough handwashing after handling Engineering Controls: Use screens or barriers to shield operators if possible
State: Liquid suspension Color: Milky-white or off-white Odor: Mild, not especially pungent Boiling Point: Not applicable, decomposes before boiling Flash Point: Below typical ambient range, self-accelerating decomposition temperature usually below 75°C Solubility: Limited solubility in water, formulated as stable dispersion Stability: Sensitive to heat and contamination
Reactivity: Reacts strongly with strong acids, alkalies, oxidizers, most metals Chemical Stability: Requires stable cool temperatures, avoid strong light and vibration Decomposition: Produces significant pressure, danger of explosion if confined Incompatible Materials: Heavily reactive with combustible materials and metallic powders
Routes of Exposure: Inhalation of mist, skin contact, accidental ingestion Acute Effects: Causes irritation to eyes and skin, risk of burns with prolonged contact Chronic Effects: Sensitization or allergic reactions may follow repeated exposure Carcinogenicity: Not classified as a known carcinogen by internationally recognized authorities Toxicity Threshold: No established occupational exposure limit; caution and general chemical hygiene are key
Aquatic Impact: Harmful to fish and invertebrates in direct releases, can disrupt local eco-balance Persistence: Organic peroxides break down in the environment but may briefly pose toxicity until degraded Mobility: Stable in water-bound dispersions, unlikely to bioaccumulate Biodegradability: Incomplete, transformation products can still impact local systems
Preferred Methods: Incinerate under controlled conditions, never landfill untreated product Precautions: Keep away from ignitable or incompatible waste streams, never flush to drains Legal Requirements: Follow local or national hazardous waste directives, use licensed handlers Preparation: Decontaminate any materials or equipment before disposal, document waste disposition clearly
Classification: Organic Peroxide Type E, requires special handling and labeling Packaging: Use official certified containers appropriate for organic peroxides Precautions: Prevent container rupture by maintaining low temperatures, avoid shock or compression Environmental Hazard: Marked as marine pollutant due to potential aquatic risk on spillage
Labeling: Mark as organic peroxide, hazard pictograms required for storage or transport Regulations: Subject to international transport controls such as IMDG, DOT, IATA for hazardous chemicals Worker Protection: Compliance with chemical handling directives demanded by regulatory agencies Notification: Report accidental releases or misuse according to local law Training: Workers should know chemical’s risks and emergency responses
