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Product Name: Menthol Crystal
Chemical Name: (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol
CAS Number: 2216-51-5
EC Number: 218-690-9
Synonyms: l-Menthol
Recommended Use: Flavors, pharmaceuticals, cosmetics, topical analgesics
Manufacturing/Supplier: Contact details vary by producer and distributor
Hazard Class: Eye irritant, skin irritant
GHS Label Elements: Warning, exclamation mark symbol
Hazards: May cause eye redness or watering upon contact, possible skin sensitivity leading to rash or discomfort, vapors can irritate respiratory passages, ingestion can cause gastrointestinal upset
Precautionary Statements: Avoid contact with eyes, skin, and clothing, utilize in well-ventilated areas
Ingredient: Menthol, natural or synthetic origin
Concentration: >99% by weight
Trace Impurities: Isomeric menthols, other related terpene derivatives present at levels less than 1%
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, seek medical attention for persistent irritation
Skin Contact: Wash with plenty of water and soap, remove contaminated clothing, medical attention if irritation persists
Inhalation: Move person to fresh air, allow comfortable breathing, medical help if symptoms (coughing, headache) remain
Ingestion: Rinse mouth, drink water to dilute, do not induce vomiting, see medical care for large ingestions or severe symptoms
Suitable Extinguishing Media: Water spray, dry powder, foam, carbon dioxide
Special Hazards: Combusts producing toxic fumes (carbon monoxide, carbon dioxide)
Protective Equipment for Firefighters: Full protective gear and self-contained breathing apparatus
Advice: Remove containers from fire area if safe, cool with spray
Personal Precautions: Wear protective gloves, avoid contact with eyes or skin, ventilate area
Environmental Precautions: Prevent entry into sewers, soil, and waterways
Spill Cleanup Methods: Collect spilled crystals mechanically, soak up residues with inert absorbent (sand, vermiculite), place in labeled waste containers for disposal
Safe Handling: Minimize dust generation, avoid inhalation, keep away from ignition sources, wear PPE
Storage Conditions: Store in tightly closed containers, away from direct sunlight, keep in cool, dry, well-ventilated locations, separate from oxidizers and acids
Incompatibilities: Strong acids, oxidizers
Occupational Exposure Limits: No established limits in most jurisdictions
Engineering Controls: Work in fume hoods or ventilated areas, use local exhaust
Personal Protection: Chemical safety goggles, gloves made of nitrile or PVC, lab coat, avoid open flames, wash hands after handling, do not eat or drink while working with material
Appearance: Colorless, transparent needle-like crystals
Odor: Strong, pronounced minty aroma
Odor Threshold: Recognizable at very low concentrations
Melting Point: 41–44°C
Boiling Point: 212°C
Solubility: Slight in water, freely soluble in alcohol, ether, chloroform, most organic solvents
Density: 0.890 g/cm³ at 25°C
Vapor Pressure: Low at room temperature
pH: Not applicable for solid crystal
Partition Coefficient (log Pow): Approx. 3.4
Flash Point: 93°C (closed cup)
Evaporation Rate: Negligible under ambient conditions
Chemical Stability: Stable under recommended storage conditions, may sublime slowly at room temperature
Incompatible Materials: Strong oxidizers, acids
Hazardous Decomposition: Under fire produces carbon oxides
Polymerization: Not expected to occur
Acute Toxicity: Oral LD50 (rat) approx. 3300 mg/kg, considered low toxicity in small quantities
Skin Sensitization: May cause allergic reaction with repeated exposure
Eye Damage: Causes moderate eye irritation
Inhalation: Overexposure may result in headache, dizziness, or respiratory discomfort
Chronic Effects: Prolonged or high exposure can lead to skin dryness, dermatitis in susceptible individuals
Aquatic Toxicity: Harmful to aquatic life at high concentrations
Persistence and Degradability: Expected to biodegrade in environment, not readily persistent
Bioaccumulation Potential: Low due to rapid metabolism
Mobility in Soil: Low, tends to volatilize and degrade
Disposal Methods: Dispose as non-hazardous chemical waste in accordance with local, regional, or national regulations
Containers: Triple rinse and recycle or incinerate properly
Spill residues: Place in sealed containers for appropriate disposal, avoid discharge to natural waters
UN Number: Not classified as dangerous goods under most transport regulations
Proper Shipping Name: Not regulated
Transport Hazard Class: Not applicable
Packing Group: Not assigned
Special Precautions: Keep containers upright, secure to avoid movement during transit, shield from excessive heat and moisture
International Inventory Status: Listed in TSCA (US), DSL (Canada), EINECS (EU), AICS (Australia), ENCS (Japan)
Labelling Requirements: GHS-compliant safety labeling, workplace chemical registers
Restrictions: Specific requirements may apply for pharmaceutical or food use according to FDA, EMA, and similar regulatory bodies
Other Regulations: Subject to workplace health and safety monitoring as determined by local jurisdiction, subject to REACH regulation in Europe for quantities over threshold
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
