3,3”-(1-METHYLETHYLIDENE)BIS-7-OXABICYCLO[4.1.0]HEPTANE;（CAS#14513-43-0）

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I. Basic Identification Information
Full Chemical Name‌: 2,2-Dimethyl-1,3-propanediol Diacrylate
CAS Number‌: 14513-43-0
Core Properties‌: Bifunctional acrylate reactive diluent, colorless transparent low-viscosity liquid at room temperature, density 1.03 g/cm³, boiling point 296°C, flash point 130°C, one of the most widely used reactive diluents in UV-curable coating and ink systems
II. Clarified Safety Operation Requirements
Storage Safety‌: Seal and store in a cool, dry, dark area below 25°C, add 100-200ppm 4-Methoxyphenol as polymerization inhibitor for stable storage. Keep away from heat sources, open flames and strong oxidizing substances, avoid long-term high-temperature storage that may cause self-polymerization and gelation of acrylate double bonds
Operation Protection‌: Wear chemical-resistant nitrile gloves, goggles and activated carbon filter respirators during operation. Work in a fume hood to prevent liquid splashing from contacting skin and eyes, and avoid massive inhalation of volatile vapors
III. Confirmed Potential Risk Warnings
Skin Sensitization and Irritation Risk‌: Classified as a clear skin sensitizing substance (H317). Long-term direct contact can easily cause skin redness, itching and allergic dermatitis, and some sensitive people may develop allergic reactions after a single contact
Eye Damage Risk‌: Direct splashing of the liquid into eyes will cause moderate to severe irritation. Failure to handle it in time may result in corneal damage and temporary vision loss
Inhalation Irritation Risk‌: High-concentration vapors volatilized at high temperature will strongly irritate the respiratory tract, causing severe cough, sore throat and chest tightness
Self-polymerization Exothermic Risk‌: When heated above 200°C or exposed to peroxides and strong free radical initiators, a rapid self-polymerization exothermic reaction will occur, which may cause overpressure rupture of the container in severe cases
IV. Emergency Disposal Methods
In case of skin contact, immediately rinse with plenty of clean water and soap water for more than 15 minutes. Take off contaminated work clothes and thoroughly clean them before reuse
If the liquid accidentally enters eyes, immediately flip the eyelids and continuously rinse with running water for more than 15 minutes, then seek medical attention at the ophthalmology department in time
If high-concentration vapors are inhaled accidentally, immediately move to fresh air, keep the respiratory tract unobstructed, and seek medical attention immediately when breathing discomfort occurs
If accidentally ingested, do not induce vomiting. Immediately drink a large amount of warm water for dilution and seek medical attention in time