Ascent Petrochem Holdings Co., Limited

Knowledge

Material Safety Data Sheet for Methylcyclohexyl Acrylate

Identification

Product Name: Methylcyclohexyl Acrylate
Chemical Formula: C10H16O2
CAS Number: 24634-61-5
Synonyms: Cyclohexylmethyl Acrylate, 1-Methylcyclohexyl Acrylate
Intended Use: Chemical intermediate, monomer in polymer production, coatings, adhesives
Supplier Information: Company name, address, phone, emergency contact details
Recommended Restrictions: Industrial or professional use only. Not for household or consumer application.

Hazard Identification

GHS Classification: Flammable liquid, Skin irritant, Eye irritant, Sensitizer
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause allergy or asthma symptoms, harmful if inhaled or swallowed, flammable liquid and vapor
Pictograms: Flame, exclamation mark
Precautionary Statements: Avoid breathing vapors, use explosion-proof equipment, wash thoroughly after handling, wear protective gloves, keep away from ignition sources
Symptoms of Exposure: Redness, stinging, cough, dizziness, headache, allergic skin reaction, respiratory irritation
Other Risks: Vapors heavier than air, can accumulate and pose explosion risks near ground or in low areas

Composition / Information on Ingredients

Chemical Name: Methylcyclohexyl Acrylate
CAS Number: 24634-61-5
Concentration: >98%
Impurities: Trace stabilizers or residual monomers below 2%, typically not contributing to major hazardous properties

First Aid Measures

Inhalation: Move victim to fresh air, provide oxygen if breathing is difficult, seek medical attention for symptoms like wheezing or persistent coughing
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water for at least 15 minutes, use non-abrasive soap, seek medical advice for persistent redness or irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, consult emergency medical help if irritation persists
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person, immediately call poison center or physician
Notes for Physicians: Treat symptomatically, monitor respiratory and allergic reactions, consider bronchospasm or anaphylactic responses for people with known allergies to acrylates

Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, foam, dry chemical powder, do not use water jet due to risk of spattering
Unsuitable Extinguishing Media: Direct water stream may spread fire
Specific Hazards: Emits acrid smoke, carbon monoxide, carbon dioxide, and possibly toxic acrylic monomers under high temperatures
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective clothing to avoid inhalation and skin exposure
Special Precautions: Keep containers cool by spraying with water, use caution as run-off can create slippery surfaces, dispose of contaminated firefighting water according to regulations

Accidental Release Measures

Personal Precautions: Evacuate area, avoid contact with spilled material, ventilate zone, use explosion-proof electrical equipment
Protective Equipment: Chemical-resistant gloves, goggles, face shield, flame-retardant clothing, respirator in case of inadequate ventilation
Environmental Precautions: Prevent release into drains, sewers, groundwater or surface water sources
Methods for Cleaning Up: Absorb liquid with inert material like sand or earth, scoop into labeled containers for disposal, wipe spill site with water and detergent to remove residues, ventilate space after clean-up

Handling and Storage

Safe Handling Practices: Handle in a well-ventilated area, avoid inhalation or contact with skin and eyes, keep containers tightly closed when not in use, ground/bond container and receiving equipment to prevent static discharge
Protective Measures: Wear suitable chemical-resistant gloves and splash-proof eye protection, have emergency showers and eyewash stations close
Incompatibilities: Avoid contact with strong acids, bases, oxidizing agents
Safe Storage Conditions: Keep product in original, tightly closed container, store in a cool, dry place away from sources of ignition or direct sunlight, segregate from food and drink
Shelf Life: Typically 12 months under recommended storage conditions, check manufacturer data for specific advice

Exposure Controls and Personal Protection

Occupational Exposure Limits: No specific ACGIH or OSHA PEL, recommend using lowest feasible exposure by applying strict industrial hygiene practices
Engineering Controls: Local exhaust ventilation, explosion-proof air handling, enclose operations as much as possible
Personal Protective Equipment: Nitrile or neoprene gloves, chemical splash goggles, face shield, long-sleeved flame-retardant lab coat, protection suitable for flammable liquids
Respiratory Protection: NIOSH/MSHA approved organic vapor respirator if exposure limits might be exceeded or ventilation insufficient
Environmental Controls: Spill containment, regular inspection of storage, do not allow material to enter drains or waterways

Physical and Chemical Properties

Physical State: Liquid
Color: Clear to pale yellow
Odor: Ester-like, sharp
Odor Threshold: Not established
Boiling Point: 195-200°C
Melting Point: -45°C
Flash Point: 66°C (closed cup, approximate)
Evaporation Rate: Slower than ether
Vapor Pressure: Approx. 0.6 mmHg at 25°C
Vapor Density: 5.3 (air = 1)
Density: 0.97 g/cm³ at 20°C
Solubility: Insoluble in water, soluble in most organic solvents
Partition Coefficient (log Kow): Estimated 2.6 - 3.1
Viscosity: 3-7 mPa·s at 25°C
Decomposition Temperature: 240°C
Auto-ignition Temperature: 285°C

Stability and Reactivity

Chemical Stability: Stable under standard handling, can polymerize if contaminated or heated
Conditions to Avoid: Heat, direct sunlight, flames, sparks, incompatible chemicals (acids, oxidizers, bases)
Incompatible Materials: Peroxides, strong oxidizers, acidic or alkaline substances may trigger decomposition or violent reaction
Hazardous Decomposition Products: Acrylic monomers, carbon monoxide, carbon dioxide, small amounts of formaldehyde or other organic vapors possible
Hazardous Polymerization: May occur with heat, light, or accidental mixing with incompatible chemicals; storage with stabilizers reduces risk

Toxicological Information

Acute Toxicity: LD50 (oral, rat) >2000 mg/kg; LD50 (dermal, rabbit) >2000 mg/kg
Skin Corrosion/Irritation: Moderate corrosive effect, can cause inflammation and blistering after prolonged contact
Eye Damage/Irritation: Marked irritation, corneal damage possible with unprotected eyes
Respiratory Sensitization: Occasional cases of asthma-like symptoms in workers, based on acrylate group
Skin Sensitization: Common allergenic potential for acrylate monomers, repeated contact increases risk of dermatitis
Chronic Effects: Prolonged or repeated exposure may cause irreversible changes in skin, respiratory system sensitization possible, no known carcinogenic effect in humans at occupational exposures
Other Relevant Data: No significant neurotoxicity or reproductive toxicity documented at expected workplace levels

Ecological Information

Ecotoxicity: Harmful to aquatic organisms, possible long-term adverse effects in the aquatic environment
Mobility: Slightly mobile in soil, low solubility limits groundwater impact but runoff may affect surface waters
Persistence and Degradability: Inherently biodegradable, but may persist long enough to cause local impact
Bioaccumulative Potential: Moderate bioaccumulation potential (log Kow 2.6 - 3.1), not expected to concentrate dramatically in food chains
Other Adverse Effects: Esters like this can contribute to ozone precursor loads if released to the atmosphere in significant amounts, and produce sharp odors that impact local communities

Disposal Considerations

Disposal Methods: Collect in suitable sealed containers, send to incineration at licensed hazardous waste facility, never pour into drains or sewers
Contaminated Packaging: Clean thoroughly before recycling or dispose as hazardous waste
Special Precautions: Follow local, regional, national, and international regulations, document waste handover, avoid uncontrolled discharges at all steps
Waste Codes: Typically covered under organic solvent or hazardous chemical waste regulations; consult local authority for specific coding

Transport Information

UN Number: 1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (Methylcyclohexyl Acrylate)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Labels: Flammable liquid symbol required
Special Precautions for User: Secure well to prevent tipping, ventilate transport area, never transport with foodstuffs or incompatible cargo
Environmental Hazards: Not a marine pollutant under standard UN rules, but national regulations may vary

Regulatory Information

TSCA Status (USA): Listed
REACH (EU): Registration number required for supplied quantity above 1 tonne per year
Other Global Regulations: Subject to chemical control laws in most industrialized nations
OSHA Status: Regulated for flammability and workplace hazards
SARA 313: Not listed, but check local TRI requirements
WHMIS (Canada): Classified as flammable and irritant, subject to standard workplace hazard disclosures
Label Elements: Standard pictograms, hazard wording, precautionary statements as required by region