1.purity:98%min 2.Direct manufacturer and good price 3.Excellent&High-Efficiency Sale and After-sale Service Specification: IndexSpecificationGB/T1682-2008 Best-gradeAppearanceClear liquid, without suspending impuritiesChromaticity(in Hazen)(Pt-Co),≤10Acetic acid content,%≥99.0-99.5Moisture,%≤0.15Formic acid content,%≤0.06Aldehyde content, %≤0.03Vaporized residue,%≤0.01Iron content (based on Fe), ...