Dimethy-5-sulfoisophthalate Sodium

We are offering dimethy-5-sulfoisophthalate sodium salt (sipm) is mainly used in dacron, film and other aspects. Since there is sulfo group in cdp fiber, it has good affinity performance to cationic dyes. Modified fiber is easy for wool blend, so it is suitable for winter clothing fabrics.
Index name premium grade
appearance no see impurity white powder
acid value（mg kohg） ≤ 0.6
saponification value （mg kohg） 376—380
sulfate radical ppm ≤ 100
moisture（wt%） ≤ 0.2
ferrum ppm ≤ 4
absorbance ≤ 0.05
chloridion ppm ≤ 15