Appearance: colorless Sulfolane: 99.5% min. Density: 1260~1270 (30 centigrade degree) kg/m3 5% Distill off Temp.: 282 min. centigrade degree 95% Distill off Temp.: 288 max.centigrade degree Heat Stability: 20mgSO2/kg max. Moisture: 3.0% max. Sulfur content: 26.0~27.0% 2- Sulfolane:0.2% max. Isoproply Sulfolane eather:0.2% max. Ash content:0.1%max. PACKING IN 250KGS Galvanized Steel drums