English name: DIMETHYL-5-SULFOISOPHTHALATE SODIUM SALT (SIPM,DMSIP)
Other Name: Sodium-5-Sulfoisophthalic Acid Dimethyl Ester and Third Monomer.
Molecular Formula: C10H9O7SNa
Molecular weight: 296.23
CAS No.: 3965-55-7
Dimethyl phthalate sodium 5-sulfonate (SIPM) is a stable white powder at room temperature and pressure, which can be used as organic intermediates and surfactants. It is mainly used in polyester and film, among which polyester is the main application field, mainly as the third monomer of cationic modified POLYESTER CDP. The substance is flammable, toxic and irritating.
SIPM is mainly used in producing Dacron, film, etc., especially in the field of Dacron as the third monomer of cationic dyeable polyester(CDP). It has good affinity fuction with cation dyestuff because of the CDP fibre containing sulfo group, the dyed fibre is bright and lustrous, having a complete range of color and dying deeply, so this kind of fibre is developing quickly at abroad. The output of modified polyester fibre of Japan and USA amounts to more than 15%. The modified fibre has woolens feeling, it is easily blended with fleece and suitable for materials for making garments..
Specification | High Quality | First Grade |
Appearance | white powder without visible impurities | |
Acid Value (mgKOH/g) | ≤0.3 | ≤O.5 |
Saponification Value (mgKOH/g) | 378± 2 | 378±3 |
Sulfate ion (ppm) | ≤100 | ≤150 |
Water ( wt% ) | ≤O.3 | ≤0.4 |
Ferrum (ppm) | ≤4 | ≤5 |
Absorbance (ABS) | ≤O.05 | ≤0.08 |
Chloride ion (ppm) | ≤8 | ≤10 |
Remark: SIPM. Yield: 4000 tons (yearly), with products meeting DuPont's quality standards. | ||
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