| abstract |
A purpose of the present invention is to provide cellulose acetate having a low total degree of acetyl substitution, a low degree of acetyl substitution of position 6 with respect to the degrees of acetyl substitution of positions 2 and 3 of the glucose ring, as well as excellent water solubility.　Cellulose acetate having a total degree of acetyl substitution of from 0.4 to 0.9, a proportion of the degree of acetyl substitution of position 6 of from 0% to 18% in the total degree of acetyl substitution, and 660 nm light transmittance of a 4 wt% aqueous solution of 5% or higher. |