Distillates (petroleum), hydrotreated heavy naphthenic

Distillates (petroleum), hydrotreated heavy naphthenic (CAS 64742-52-5) is a refined petroleum-derived base oil produced through hydrotreatment. Also marketed as TECHNOMELT EM 357.

Where is Distillates (petroleum), hydrotreated heavy naphthenic used?

• Lubricants: base fluid and carrier in lubricant formulations and industrial oil blending
• Lubricant manufacturing: base oil component in gear oils, compressor oils and industrial process oils requiring high solvency and additive compatibility
• Rubber process oils and transformer oils: naphthenic base where aromatic content must be controlled
• Metalworking: blended into cutting fluids and rust-preventive formulations for film-forming lubrication
• Grease manufacturing: carrier fluid for consistency and performance in finished grease products
• It is a clear to pale yellow liquid in bulk tankers, IBCs and drums.

Good to know: Viscosity grades are typically specified by buyers to match target formulation requirements; suppliers may offer variants conforming to specific base oil group classifications.

Commercial specifications

• CAS 64742-52-5
• Viscosity grades specified by buyers