... ±0.002°Cboiling point:117.9°Cviscosity: 1.22 centipois (20°C)flash point:43°C (closed cup)refractive index1.3715burning ... > Quality Standard: IndexSpecificationAppearanceClear liquid, without suspending impuritiesChromaticity(in Hazen)(Pt-Co),≤20Acetic acid content,%≥99.0Moisture,%≤-Formic acid content,%≤0.15Aldehyde ...