AN (Alkylated Naphthalene)
Alkylated Naphthalene Base Oil
AN (Alkylated Naphthalene) is available from low viscosity to high viscosity grades (AN3/AN5/AN5H/AN15/AN23/AN30), It is API Group V base oilsUsed in a wide range of automotive and industrial lubricants. When formulated with AN base oil, the lubricant offers better thermo-oxidative stability and a long drain interval. AN is a co-base oil with PAO and Group II/III base oils for tier lubricants where high stability is required under extreme operating conditions.
Alkylated Naphthalene Base Oil Features
·Superior thermo-oxidative stability.
·Improved solubility properties.
·High Flash Point with Lower volatility.
·Excellent hydrolytic stability.
·Good seal swell properties.
SPECIFICATION
Product | Appearance | Viscosity | Viscosity |
| ||
(100℃)cSt | (40℃)cSt | |||||
AN3 | Light yellow | 3.2 | 17.4 | 4 | ||
AN5 | Light yellow | 4.52 | 26.5 | 68 | ||
AN5H | Light yellow | 4.8 | 29 | 75 | ||
AN15 | Light yellow | 15.1 | 140 | 109 | ||
AN23 | Light yellow | 20.5 | 206 | 116 | ||
AN30 | Light yellow | 29.85 | 301 | 135 | ||
Why Alkylated Naphthalene Is Used in Lubricants
- Strong thermal and oxidative stability
- Good solvency for polar lubricant additives
- Improved deposit and varnish control
- Hydrolytic stability
- Low volatility and high flash point
- Seal compatibility and controlled seal swell
- Performance at elevated operating temperatures
Available Grades and Selection
The page should explain how buyers can select among AN3, AN5, AN5H, AN15, AN23, and AN30.
| Selection factor | What buyers should evaluate |
|---|---|
| Target viscosity | Required viscosity of the finished lubricant |
| Base-oil combination | PAO, Group II, Group III, ester, or another base stock |
| Operating temperature | Expected continuous and peak temperatures |
| Volatility requirement | Evaporation-loss target of the finished oil |
| Additive solvency | Type and concentration of additives used |
| Application | Engine oil, compressor oil, gear oil, grease, or industrial fluid |