... :within 7 daysSpecification ItemSpecificationAcetic acid content 99.6%min Chromaticity(in Hazen)(Pt-Co) 10max Moisture 0.15%max Formic acid ... ) 0.00004%max Reduction time of potassium permanganate 30minUsage:Widely used in synthetic fibers, coatings, pharmaceuticals, pesticides, food additives, dyeing and other ...