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DMPA

  • Post Date:

    Jan 03,2013
  • Expiry Date:

    Jul 02,2013
  • Detailed Description:

    Cas No. :4767-03-7 Specs:DMPA-Ⅰ (coarse) size 0.250-0.425mm ≥90%

    Dimethylolpropionic Acid (DMPA)

    Molecular formula

     C5H10O4

    Structural formula

    Dimethylolpropionic Acid (DMPA)

    Molecular weight

     134.13

    Cas No

    4767-03-7

    Properties

      odorless, free flow white crystal
      Melting point :185-190℃; Density:0.84.

    Technical indexes

     Assay (%)                    ≥99
     Moisture (%)                  ≤0.2
     Ash (%)                     ≤0.03
     Residual aldehyde (%)              ≤0.01
     Hydroxyl value (mgKOH/g)            810-860
     Fe (PPM)                    ≤5
     Na (PPM)                    ≤30
     K (PPM)                     ≤10
     P(as phosphate) (PPM)               ≤10
     Si(as silicate) (PPM)                ≤1
     Sulfate ion (PPM)                ≤10
     Solubility test in acetone-triethylamine        clear

    Uses

    It can be used in water soluble PU system, water soluble alkyd resin, polyester resin, epoxy ester coating, PU elastomer and powder coating. Now, it is mainly used in coating of water soluble PU system, adhesive and leather coating agent.

    Specification

    DMPA-Ⅰ (coarse) size 0.250-0.425mm ≥90%,
    DMPA-Ⅱ (refined) size 0.250-0.425mm ≤30%
    0.150-0.250mm ≥50%

    Packing

     25Kg in paper-plastic laminated bag or cardboard drum. or following your 
     demands.

    Storage

     sealed, kept in cool and dry place. If piled, it should be laid on wood sheet
     with thickness of 10cm) and the distance from wall is 50cm..

     

  • CAS Registry Number:

    4767-03-7
  • Synonyms:

    ;Dimethylolpropionic acid;dihydroxypivalic acid;2,2-Dimethylol Propionic Acid;3-Hydroxy-2-(hydroxymethyl)-2-methyl-propanoic acid;3-hydroxy-2-(hydroxymethyl)-2-methylpropanoate;DMPA;2,2-Dimethylolpropionic acid;2,2-Bis(hydroxymethyl) propionic acid;
  • Molecular Formula:

    C5H10O4
  • Molecular Weight:

    134.1231
  • Molecular Structure:

    4767-03-7 2,2-Bis(hydroxymethyl)propionic acid
  • Hazard Symbols:

     Xi:Irritant;
  • Risk Codes:

    R36/37:;
  • Safety Description:

    S26:;
    S37/39:;
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