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Appearance: Transparent liquid without water insoluble mechanical impurities.
Assay %≥:99.9
Color (Pt - Co)≤: 20
Density(20℃)kg/m3: 878~881
Relative density: 0.87
Pickling colorimeter: Acid layer color is not deeper than 0.2gK₂Cr₂O₇/1000ml dilute acid standard solution.
Total sulfur content≤: 0.0001
Crystallization point (dry basis) ℃≥ :5.35 GB3145
Evaporation residue mg/100ml≤:5
Distillation range ℃:79.8—80.7 GB3146
Toluene % ≤:0.01C8
Aromatic hydrocarbon% ≤:0.01
Total non-aromatic compounds %≤:0.09
Moisture % ≤:0.05
Thiophene ml/kg ≤:0.1

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