Description of Cellulose diacetate : According to the degree of substitution(DS), Cellulose acetate can be commonly classified to cellulose diacetate(DAC) and cellulose triacetate(TAC). Usually, DAC has DS with 2.2-2.5 while TAC has DS with above 2.7.(DS is an average number, It represents the number of -OH which is substituted by -C0CH3) Usage of Cellulose diacetate : It can be used to make non-woven fabrics for cigarette filters, ink pen refills, water absorbing layers and masks for diapers. Other serise of Cellulose diacetate : Plastic grade Cellulose diacetate . WE ALSO HAVE CELLULOSE TRIACETATE CAS No.: 9012-09-3 Product Parameters Item /Results Moisture % :1.9 Free acid %: 0.003 Combined acid %: 55.4 Percolate Value g/m2 :43 Viscosity mpa.s : 123 Yellowness b : 3.98 Bulk density g/m3 : 0.2544 Conclusion The product quality conforms with the enterprise standard