At a Glance
Material Family
Phosphate Esters & Derivatives
Record Type
UVCB
Primary Role
Lubrication · Corrosion Inhibition
Solubility
Soluble in mineral and synthetic base oils (typical)
Functional Roles
Industries Served
Applications & Use Cases
- ▸ Primary anti-wear (AW) additive in automotive engine oils, protecting cams, lifters, and bearings through formation of a phosphate/sulfide tribofilm under boundary lubrication.
- ▸ Multifunctional additive in industrial gear oils, hydraulic fluids, and circulating oils where it provides anti-wear, antioxidant, and metal-deactivation/corrosion-inhibition functions.
- ▸ Oxidation inhibitor in finished lubricant packages, scavenging peroxides and peroxy radicals to extend oil drain intervals and thermal stability.
- ▸ Corrosion and rust inhibitor that passivates ferrous and copper-alloy surfaces in turbine, compressor, and metalworking fluid formulations.
- ▸ Performance component blended into additive packages dosed typically at 0.5 to 2 percent by weight, with phosphorus content balanced against catalytic-converter and emissions constraints.
Physical Properties
Appearance
Amber to dark amber viscous liquid (typical)
Odor
Mild characteristic / mercaptan-like (typical)
Physical State
Liquid (typical)
Density
1.07-1.20 g/cm3 (typical)
Flash Point
>100 C (typical, closed cup)
Water Solubility
Insoluble / reacts slowly with water (typical)
Solubility
Soluble in mineral and synthetic base oils (typical)
Zinc Content
8-10 wt% (typical)
Phosphorus Content
7-9 wt% (typical)
Safety & Handling
Full SDS available on request
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →
Chemical Identity
CAS Number
68649-42-3
Synonyms & Trade Names
Full Description
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 272-028-3
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.