Your Professional Salicylate Detergents Supplier
Since its establishment in 2010, Sinolook has been deeply involved in the energy and chemical sectors and has become one of the leading base oil and petrochemical traders in China and Asia. In the niche field of fine chemicals, we have a deep understanding of the characteristics and application scenarios of each type of product.
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![Low TBN Calcium Alkyl Salicylate]()
Low TBN Calcium Alkyl SalicylateLow TBN Calcium Alkyl Salicylate (TBN 20–60 mgKOH/g, Ca 2–6%, Ca(C₇H₇O₂)₂ structure) is the only sulphur-free Ca detergent — the salicylate anion contains no sulphur atoms, contributing zero wt% S to -
![Medium TBN Calcium Alkyl Salicylate]()
Medium TBN Calcium Alkyl SalicylateMedium TBN Calcium Alkyl Salicylate (TBN 80–120 mgKOH/g, Ca 4–9%) is the primary salicylate co-detergent for standard PCMO (API SP, ACEA A3/B4), HDEO (API CK-4/ACEA E9), and gas engine oils. Retains -
![High TBN Calcium Alkyl Salicylate]()
High TBN Calcium Alkyl SalicylateHigh TBN Calcium Alkyl Salicylate is a high-performance overbased detergent additive widely used in modern engine oils, marine cylinder lubricants, and industrial lubricants requiring strong
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What is Salicylate Detergents
Salicylate detergents are advanced chemical additives primarily used in engine oils and industrial lubricants to keep machinery clean, neutralize corrosive acids, and prevent wear. They are a vital class of lubricant detergents formulated from metallic salts of alkyl salicylic acid, commonly using calcium or magnesium.
Specification
|
Parameter |
Specification |
Test Method |
Note |
|
Appearance |
Dark brown, clear to slightly hazy viscous liquid |
Visual |
Darkest grade in salicylate series - deep amber-brown; warm to 40–60°C if hazy; no sulphur odour (aromatic ester characteristic) |
|
TBN |
250–350 mgKOH/g |
ASTM D2896 |
Specify sub-grade (~250 / ~300 / ~350) at order; confirmed on COA per shipment |
|
Calcium Content |
10–12 wt% |
ASTM D5185 / ICP-OES |
Ca% × 3.40 ≈ S/A%; only ash source from this detergent - no sulphur-derived S/A contribution |
|
Sulphur Content |
~0 wt% (structural zero) |
ASTM D2622 |
No sulphur atoms in salicylate anion - zero S contribution even at 10–25 wt% MCO treat rate; confirmed on COA |
|
Flash Point (COC) |
≥ 180°C |
ASTM D92 |
Combustible liquid; standard storage and transport; not classified DG |
|
Kinematic Viscosity @100°C |
20–80 cSt |
ASTM D445 |
Grade-dependent; warm to 40–60°C for blending; steam heating not required but permitted to 80°C max |
|
Water Content |
≤ 0.1% |
ASTM D95 / KFT |
Strict moisture control required - seal drum/IBC immediately after each use; moisture accelerates colloidal destabilisation |
|
Packaging |
200 kg drum · 1000 L IBC · Flexitank · ISO tank |
- |
Sealed storage 0–45°C; warm to 40–60°C before use; 24-month shelf life in sealed original container |
Functions of Salicylate Detergents
Exceptional Longevity and Fixation
Salicylates achieve this through their relatively low vapor pressure—they evaporate far more slowly than most fragrance materials. Benzyl salicylate, with its boiling point around 320°C, represents one of the least volatile materials in perfumery, making it an exceptional base-note fixative.
Unique Blending and Harmonizing Properties
Salicylates have a remarkable ability to make disparate fragrance notes work together smoothly. benzyl salicylate helps create cohesive carnation accords alongside eugenol, cinnamic alcohol, and vanillin—transforming individual notes into unified olfactory experiences.
Outstanding Chemical Stability
Many salicylates withstand conditions that would destroy or transform other fragrance materials. Hexyl salicylate demonstrates exceptional alkaline stability, maintaining olfactory integrity in soap bases and detergents at pH levels that would saponify esters or degrade sensitive natural materials. This stability makes it the dominant choice for functional fragrance applications—laundry detergents, fabric softeners, dish liquids, and cleaning products.
At the molecular level, all salicylates share a common structural foundation: a benzene ring with two adjacent functional groups—a hydroxyl group (-OH) and a carboxyl group (-COOH). This specific ortho-substitution pattern creates salicylic acid, the parent compound of the entire family (Sell, 2006).
When perfume chemists combine salicylic acid with an alcohol through esterification—a condensation reaction that eliminates water—they create a salicylate ester. The chemical transformation can be represented as:
Salicylic Acid + R-OH → Salicylate Ester + H₂O
The key to salicylate chemistry lies in choosing which alcohol to use. Use longer hexanol (6 carbons) instead, and you produce hexyl salicylate with its softer, greener profile. Extend further to benzyl alcohol (7 carbons in a benzene ring plus methylene), and you create benzyl salicylate with its subtle, balsamic-fixative properties.
This structural flexibility explains why the salicylate family encompasses everything from powerful medicinal-smelling materials to subtle floral fixatives—same chemical family, dramatically different olfactory personalities.
Application of Salicylate Detergents
Automotive Engine Oils: Used in passenger car motor oils (PCMO) and heavy-duty diesel engine oils (HDDO) to enhance anti-wear protection, corrosion resistance, and oxidation stability.
Engine Oils (Medium to High Base Number): Calcium salicylate is often used in engine oils, particularly those formulated with a medium to high Total Base Number (TBN). TBN indicates an oil’s ability to neutralize acidic byproducts produced during engine operation. Calcium salicylate’s mild detergency and dispersancy properties help manage these contaminants.
Industrial Lubricants: Applied in industrial gear oils, hydraulic fluids, metalworking fluids, and other industrial lubricants to provide cleaning, dispersing, and protective properties, ensuring smooth equipment operation and extended equipment life.
Industrial Lubricants: It can also be found in some industrial lubricants where mild detergency, dispersancy, and anti-wear properties are desirable.
Metalworking Fluids: Utilized in metalworking fluids to enhance lubrication, cooling, and corrosion protection during machining, grinding, and cutting operations.
FAQ
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