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        5-Sulfoisophtalic acid (DMSIP.SIPM.DMS)

Another Name: Dimethyl-5-sulfoisophthalate Sodium Salt

Molecular formula: C10H9O7SNa

Molecular weight: 296.24

Technical index:

Appearance:
White powder
Content:
≥99.5%
Saponification value:
376-380 mg KOH/g
Acid value:
≤0.6 mg KOH/g
Sulphate:
≤100 ppm
Fe:
≤4 ppm
Chloride:
≤15 ppm
Water:
≤0.2%
Absorbance
≤15

Use:  SIPM is mainly used in producing Dacron, film etc. Especially in the filed of Dacron as the third monomer of cation modified polyester (CDP). It has good affinity function with cation dyestuff because of the CDP fiber containing sulfo group, the dyed fiber is bright and lustrous, having a complete range of color and dying deeply, so this kind of fiber is developing quickly at abroad. The output of modified polyester fiber of Japan and USA amounts to more than 15%. The modified fiber has woolens feeling. It is easily blended with fleece and suitable for materials for making garments.


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