Neopentanediol dimethacrylate NPGDMA
    CAS No.                           1985-51-9
    EINECS No.                    217-856-8
    MF                                     C13H20O4
Quality standard 
    Purity                                min. 99.0% (GC)
    Acid content                    max.0.02% (acid-base titr., calculated as MAAC)
    Watercontent                  max.0.03%
    Color                                max.20 (Pt-Co)
    Stabilization                    50±5 ppm MEHQ (HPLC) 
Physical data 
    Appearance                    clear, colorless or yellowish liquid
    Odor                                 ester-like
    Molecular weight           240.0 g/mol
    Density                            1.000 g/cm3 (20℃)
    Refractive index             1.451 (20℃)
    Boiling point                   +114℃(1014 mbar)
    Solidfication                    -30℃
    Viscosity                          8.0 mPa.s (20℃)
    Flashpoint                      +105.0℃
    Solubility (20℃)            < 0.2%(ester in water)
Principal Use
    Neopentanediol dimethacrylate is an important crosslinking agent widely used in the fields of organic glass,coating,sol-speed and rubber industries.
Packaging
    Plastic drums or stainless steel tank，200kg net weight.
Transportation and Storage
     Avoid shine rain and high temperature in transportation.Store the products in cool, shady and ventilated conditions, keep far away from fire.6 months from date of delivery at a maximum storage   temperature of 30℃.
General hints
     Flammable ! Polymerization may be initiated by contamination with peroxides, aze compounds,heavy metal ions, tert. Amines, Scompounds. Polymerization is also induced by light. Atmospheric oxygen   saturation in the monomer is necessary for stability. Storage temperatures should not exceed 35.