Cashew Nut Shell Liquid (CNSL) is a versatile natural resin extracted from the honeycomb structure inside cashew nut shells. Indian Stalwart Global Sourcing Company offers high-quality CNSL obtained via advanced extraction methods such as hot oil bath, mechanical pressing, and solvent extraction. Our CNSL is rich in phenolic compounds including anacardic acid (70-80%), cardol (around 18%), and cardanol (5-10%), essential for various industrial applications. The raw CNSL appears as a reddish-brown viscous oil with specific gravity between 0.955 to 0.975, immiscible with water but soluble in organic solvents. We supply CNSL in multiple grades, including raw, technical (high cardanol ~80–90%), and distilled CNSL (refined cardanol with >95% purity), suitable for use in paints, varnishes, brake linings, friction materials, coatings, adhesives, lubricants, timber treatment, and agricultural pest control. Extracted via environmentally conscious processes, our CNSL meets stringent export standards with low moisture content and minimal impurities ensuring superior performance for your industrial procurement needs.
Key Features
| Features | Description |
|---|---|
| Source | Extracted from cashew nut shell honeycomb structure |
| Composition | Anacardic acid (70-80%), Cardol (~18%), Cardanol (5-10%) |
| Extraction Methods | Hot oil bath, Mechanical pressing, Solvent extraction |
| Grades Available | Raw CNSL, Technical CNSL, Distilled CNSL |
| Physical Appearance | Reddish-brown viscous oil |
| Specific Gravity | 0.955 – 0.975 |
| Solubility | Insoluble in water, soluble in organic solvents |
| Industrial Applications | Paints, varnishes, brake linings, adhesives, lubricants, timber treatment |
| MOQ | 1 Liter |
| Processing | Heat treatment, vacuum distillation for refined cardanol |
| Attributes | Description |
|---|---|
| CAS Number | 8007-24-7 |
| Purity | Up to 95% cardanol in distilled CNSL |
| Moisture Content | <1% |
| Impurity Removal | Sulfur, metal removal through treatment |
| Packaging | Industrial-grade drums or customized packing |
| Shelf Life | 12 months under proper storage |
| Export Standards | Meets international quality & safety requirements |
| Physical State | Viscous liquid |
| Density | 0.955 to 0.975 g/cm³ |
| Color | Reddish brown |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
We offer CNSL extracted via hot oil bath, mechanical cold pressing, and solvent extraction methods to meet varying purity and application requirements.
Our CNSL is available in raw, technical (high cardanol content), and distilled grades suitable for diverse industrial applications.
Yes, distilled CNSL contains >95% cardanol purity with moisture content less than 1% ensuring high-quality performance.
Industries such as paints and coatings, brake lining production, adhesives manufacturing, lubricants formulation, timber treatment, and agricultural pest control extensively use our CNSL.
Yes, CNSL is produced with waste treatment measures like incineration and water recycling, meeting international export standards with sustainably managed production processes.
Country Of Origin: India
Looking for Cashew Nut Shell Liquid? Indian Stalwart Global Sourcing is the best place for your procurement requirements.
Cashew nut shell liquid (CNSL) is a natural resin extracted from the soft honeycomb structure inside cashew nut shells. It's a byproduct of cashew processing, appearing as a reddish-brown viscous oil rich in phenolic compounds like anacardic acid (70-80%), cardol, and cardanol.
Composition
CNSL mainly consists of anacardic acids, cardol (around 18%), and cardanol (5-10%), varying by extraction method like solvent extraction or hot oil baths. Distillation yields purified cardanol, a key alkylphenol for industrial use. Raw CNSL is immiscible with water but mixes with organic solvents, with a specific gravity of 0.955–0.975.
CNSL, or cashew nut shell liquid, is industrially extracted from the shells of cashew nuts after kernel separation. Common methods include hot oil baths, mechanical pressing, and solvent extraction, followed by processing steps like heat treatment and distillation.
Production :
Shells, about 1/8 inch thick, contain over 20% CNSL, recovered via hot oil baths (180-200°C, yielding ~10%) or expellers for up to 20% total. It's treated to remove impurities like sulfur and metals before industrial use.
Uses :
CNSL serves in paints, varnishes, brake linings, friction dust, and resins due to its polymerization properties. Derivatives like cardanol go into coatings, adhesives, lubricants, and waterproofing. It also aids agriculture for pest control and timber treatment.
Extraction Methods
Hot oil bath extraction involves dipping shells in oil heated to 180–200°C, breaking down the honeycomb structure to release CNSL with yields up to 25–30 L per 1000 kg of shells; this also decarboxylates anacardic acid into cardanol. Mechanical cold pressing crushes shells at ambient temperatures for 150–170 L per 1000 kg, preserving more natural compounds but requiring impurity removal. Solvent extraction soaks crushed shells in hexane or ethanol, evaporating the solvent for high-purity CNSL suited to pharmaceuticals.
Processing Steps
Extracted CNSL passes through settling tanks to remove shell residues, then heat treatment in reactors converts raw CNSL (high anacardic acid) to technical CNSL (high cardanol, ~80–90%). Further vacuum distillation isolates refined cardanol (>95% purity), with waste treatment via incineration and water recycling for sustainability. Grades like raw, technical, and distilled CNSL meet export standards with low moisture (<1%) and controlled acidity.
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Chennai , India
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