PH-135
2,6-di-tert-butylphenol derivative
Liquid hindered phenol. The default primary antioxidant for hydraulic and turbine oils, and the half of a paired AO system that carries the load below 120 °C.
- Physical form
- Liquid
Typical values, not a specification. The binding specification is the one on the certificate of analysis issued against each batch.
- CAS number
- 125643-61-0
- EC number
- 406-040-9
Grades a formulator would benchmark PH-135 against. Naming them is not a claim of equivalence — it is where to start the comparison.
Phenolic Antioxidants
Primary low-to-mid temperature radical scavenger
Hindered phenols built on the 2,6-di-tert-butylphenol motif. They donate a hydrogen atom to peroxy radicals and are the more cost-effective half of a paired antioxidant system below ~120 °C. Liquid grades matter for cold-blend and low-viscosity fluids where a solid will not dissolve without heat.
Industrial Gear Oils
Enclosed gear drives, wind turbine gearboxes and heavy industrial reducers.
Hydraulic Fluids
Anti-wear hydraulic oils, including zinc-free and fire-resistant fluids.
Metalworking Fluids
Neat cutting oils, soluble oils, semi-synthetics and forming lubricants.
Turbine & Compressor Oils
Steam, gas and hydro turbine oils, rotary and reciprocating compressor fluids.
Rust Preventives & Quenching
Slushing oils, export packaging fluids, quench oils and heat-treatment fluids.
A full technical data sheet, safety data sheet in the language of the receiving country, REACH status statement and SVHC declaration are issued with every enquiry for PH-135. Certificates of analysis accompany each consignment and retained samples are held for the full shelf life.
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