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1) Appearance : white or off-white powder
2) Specific viscosity ( 1% in butanone solution ): 0.1-0.5/0.5-1.0/1.0-1.5/1.5-2.5/2.5-4.0
3) Loss on drying: ≤2%
4) Active: ≥98%
5) Residual maleic anhydride: N/A
6) Packaging: 17kg or 20kg/fibre drum
7) HS code: 3907209090