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Cashew Nut Shell Liquid or CNSL or Cashew Oil or Cashew Nut Shell Oil is a versatile byproduct of the cashew. The nut has a shell of about 1/8 inch thickness inside which is a soft honey comb structure containing a dark reddish brown viscous liquid. It is called Cashew Nut Shell Liquid or CNSL.


CSNL is often considered as the better and cheaper material for unsaturated phenols. CNSL undergoes all the conventional reactions of phenols, CNSL aldehyde condensation products and CNSL based phenolic resins are used in applications such as surface coatings and adhesives. Various polyamines synthesized from CNSL are used as curing agents for epoxy resins. CNSL and its derivatives have been used as antioxidants, plasticizers and processing aids for rubber compounds, modifiers for plastic materials and used to provide oxidative resistance Sulphar -cured natural rubber products. It is also added to rubber gum stock or nit rile rubber to improve the process ability, mechanical properties and resistance to crack and cut properties of the vulcanisates.

Cashew Nut Shell Liquid Specifications:

Specific Gravity 30 C : 0.950-0.970
Viscosity 30 C in centipoises : 200 Max.
Moisture by weight : 1.0
Matter insoluble in toluene weight : 1.0
Loss in weight on heating : 2.0 max
Ash % by weight : 1.0
Iodine Value (min.)
a) Wijfs Method : 250
b) catalytic method : 375

a) Time in Minutes : 4
b) Colour: Dark (or Reddish) Brown
c) Ph at 25‹C:  8 - 10.5

200 kg barrels or Bulk Tanks.

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