Hangzhou Wencheng Chemical Biotech Co., Ltd.

1,6-Hexanediol dimethacrylate
1,6-Hexanediol dimethacrylate
1,6-Hexanediol dimethacrylate

1,6-Hexanediol dimethacrylate

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  • Category

    Acrylate series

  • Describe

    1,6-Hexanediol dimethacrylate (HDDMA) is a commonly used bifunctional methacrylate cross-linking monomer, which is widely used in photocuring, thermal curing and free radical polymerization systems to enhance hardness, strength and cross-linking density.

  • Cas No.

    6606-59-3

  • Purity

    mixture

  • Synonym(s)

    HDDMA

Physical and chemical properties

  • 1. Chemical Identity
    • Chemical Name: 1,6-Hexanediol dimethacrylate
    • IUPAC Name: Hexane-1,6-diyl bis(2-methylprop-2-enoate)
    • Synonyms: HDDMA, Hexamethylene dimethacrylate, 1,6-Hexamethylene glycol dimethacrylate
    • CAS Number: 6606-59-3
    • EC Number: 229-551-7
    • Molecular Formula: C14​H22​O4​
    • Molecular Weight: 254.32 g/mol
  • 2. Physical Properties
    • Appearance: Clear, colorless liquid.
    • Odor: Mild, characteristic, ester-like.
    • Melting Point: -50 °C (-58 °F)
    • Boiling Point: >260 °C (>500 °F) at 1013 hPa
    • Density: 0.988 g/cm³ at 20 °C
    • Solubility:
    • In Water: 0.1 g/L at 20 °C (Practically insoluble)
    • In Organic Solvents: Soluble in many common organic solvents.
    • Vapor Pressure: <0.01 hPa at 20 °C
    • Viscosity: 7 - 9 mPa·s at 20 °C
  • 3. Chemical Properties and Stability
    • Stability: Stable under recommended storage conditions. Typically supplied with a polymerization inhibitor (e.g., MEHQ).
    • Incompatibilities: Incompatible with strong oxidizing agents, strong bases, strong acids, reducing agents, peroxides, and free-radical initiators.
    • Hazardous Polymerization: May occur if not properly inhibited or if exposed to high temperatures, direct sunlight, UV radiation, or contaminants. Polymerization is a highly exothermic reaction.
    • Hazardous Decomposition Products: Combustion may produce toxic fumes of carbon monoxide (CO) and carbon dioxide (CO2​).
  • 4. Other Key Data
    • Flash Point: 124 °C (255 °F) - Closed cup
    • Refractive Index (n20/D): ~1.458
 

MSDS

1,6-Hexanediol dimethacrylate--MSDS     Download
 

Certificates Of Analysis

1,6-Hexanediol dimethacrylate--COA      Download
 

Application

1. The field of photocurable coatings includes 1. UV curing coatings such as wood, metal, plastic surface coatings, floor wear-resistant coatings, mobile phone shell coatings, 2. 3D printing photosensitive resins (photolithography SLA/DLP technology).

2. Photocurable ink systems include 1. Packaging printing, 2. Circuit board printing such as flexible circuit board (FPCB) conductive ink.

3. Adhesive and sealant applications 1. Industrial adhesives, electronic component adhesives, photocurable adhesives, display OCA optical adhesives, LED chip adhesives, hard disk read/write head structural adhesives, photoresists, optical glass adhesives, display optical film layers. 2. Anaerobic adhesives.

4. Modified polymers 1. Heat-resistant and chemical-resistant plastics such as polymethyl methacrylate PMMA modification, flexible elastomers such as automotive sealants and medical catheters.

5. Electronic chemicals 1. Semiconductor photoresists, wafer bonding adhesives, chip bump photoresists, 2. Liquid crystal display technology such as LCD encapsulation adhesives.

6. Medical materials
Including dental composite resins such as braces 3D printing resins, dental filling materials, dental adhesives, crown light-curing materials, denture base materials, and orthodontic light-curing adhesives.

Safety Information

  • This information is a summary based on the Globally Harmonized System of Classification and Labelling of Chemicals (GHS).
  • 1. GHS Classification
    • Skin Irritation (Category 2)
    • Eye Irritation (Category 2A)
    • Skin Sensitization (Category 1)
    • Specific Target Organ Toxicity — Single Exposure (Category 3), Respiratory System
  • 2. GHS Label Elements
    • Pictogram:
      • Exclamation Mark (GHS07)
    • Signal Word: Warning
    • Hazard Statements (H-Statements):
      • H315: Causes skin irritation.
      • H317: May cause an allergic skin reaction.
      • H319: Causes serious eye irritation.
      • H335: May cause respiratory irritation.
    • Precautionary Statements (P-Statements):
    • Prevention:
      • P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
      • P272: Contaminated work clothing should not be allowed out of the workplace.
      • P280: Wear protective gloves, eye protection, and face protection.
    • Response:
      • P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
      • P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
      • P333 + P313: If skin irritation or rash occurs: Get medical advice/attention.
      • P337 + P313: If eye irritation persists: Get medical advice/attention.
      • P362 + P364: Take off contaminated clothing and wash it before reuse.
    • Storage:
      • P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
    • Disposal:
      • P501: Dispose of contents/container to an approved hazardous waste disposal plant.
  • 3. Summary of Primary Hazards
    • Health Hazards: Causes irritation to the skin, eyes, and respiratory system. It is a known skin sensitizer, meaning repeated or prolonged contact can lead to the development of an allergic skin reaction (contact dermatitis).
    • Environmental Hazards: While not classified as hazardous to the aquatic environment under GHS, large spills should be prevented from entering waterways.
    • Reactivity Hazards: The product is a reactive monomer that can undergo hazardous polymerization if not properly stabilized and handled. It should be stored away from heat, light, and contaminants.

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