... melting point: 16.665±0.002; boiling point: 117.9; viscosity: 1.22 centipois 20; flash point: 43 (closed cup); ... without suspending impurities Chromaticityin HazenPt-Co,≤ 20 Acetic acid content,≥ 99.5 Moisture,≤ - Formic acid content,≤ 0.15 Aldehyde content, ≤ 0. ... anhydride, diketene, acetate ester, acetate, acetate fiber and chloroactic acid etc. It is an important raw material for synthesized fiber ...