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山东科兴化工 Shandong Kexing Chem

Kexing is a high-tech enterprise integrating
the research and development, production

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  • Dimethyl phthalate (DMP)

    Dimethyl phthalate (DMP)

    [Alias] Dehydrate ester; mosquito repellent oil; dimethyl phthalate
    [Molecular formula] C 10 H 10 O 4
    [Molecular weight] 194.19
    [CAS No.] 131-11-3
    [Physical and chemical properties] It is a colorless and transparent oily liquid with a slight aromatic smell. It can be miscible with organic solvents such as ethanol, ether, acetone, cyclohexanone, methyl ethyl ketone, methanol, n-butanol, toluene, and insoluble in water and petroleum ether.
    [Purpose]
    This product is a plasticizer that has strong dissolution power for a variety of resins. It can be soluble in a variety of cellulose resins, natural rubbers, synthetic rubbers, and vinyl resins. It has good film forming, adhesion and waterproofness, and has high light and thermal stability. It is often combined with diethyl phthalate for cellulose acetate films, varnishes, transparent papers and molding powders. A small amount is used in the production of nitrocellulose and can also be used as a plasticizer for nitrile glue.
    This product can also be used as a solvent for mosquito repellent oil (crude oil), polyvinyl fluoride coating, methyl ethyl ketone peroxide and DDT. When used as a plasticizer for rubber, it has no effect on the vulcanization of rubber and the product has good cold resistance.
    [Packaging Specifications]: 200L plastic bucket or iron bucket.
    [Storage precautions]
    Store in a cool and ventilated warehouse. Stay away from fire and heat sources. It should be stored separately from the oxidant and should not be mixed. Equipped with corresponding varieties and quantities of fire-fighting equipment. The storage area should be equipped with appropriate materials to contain leaks.
    【Technical Parameters】:

    Item Industrial grade Chemical purity Analytical pure
    Ester content, % ≥99.0 99.0~100.5 99.5~100.5
    Acidity (C 8 H 6 O 4 ), % ≤0.01 ≤0.01 ≤0.01
    Moisture, % ≤0.10 ≤0.05 ≤0.05
    Color (platinum-cobalt colorimetric), number ≤30 ≤25 ≤20
    Relative density (d420) 1.191~1.195 1.191~1.195 1.118~1.122
    Refractive index (n20D) 1.500~1.505 1.500~1.505 1.500~1.505
    Ash, % ≤0.01 ≤0.01 ≤0.01
    Thermal stability (platinum-cobalt colorimetric), ≤60 ≤50 ≤50
    Flash point, ℃ ≥130 ≥130 ≥130