P r o d u c t s

C A S H E W N U T S H E L L L I Q U I D (CNSL)

Cashew nut shell liquid is one of the economical sources naturally occurring

PHENOL. The Cashew nut tree in India, it grows widely along west coast

and in southern region. CNSL is present to the the extent of 32% to 35% in

the shell by weight. But due to commercial difficulty it is extracted to only

18% to 20%.CNSL contains 52% cardanol , 10% cardol and remaining

polymeric material.The requirement of various characteristics for cashew nut

shell liquid laid down in Indian standards as follows:

PROPERTIES	RESULTS
Specific Gravity At 30^oC	0.950-0.970
Colour	Brown
Viscosity at 30^oC in centipoises	550 Max.
Moisture percent By weight	1% Max.
Matter insoluble in Toulene % by weight	2% Max.
Loss of weight on heating % by weight	2% Max.
Ash percent by heating	2% Max.
Iodine Value (Wij's method)	250 Min.

C A R D A N O L

Commercial CNSL Under reduced Pressure was distilled at a temperature

of 225^oC under reduced pressure (1mm of Hg) to obtain cardanol. A pale

yellow to brown liquid of refractive index 1.5 at 30^o C .Cardanol is a phenol

which has a C15 unsaturated alkyl chain with 1-3 double bonds at m-position.

Cardanol is a mixture of cardanol 90% and cardol 10%.

PROPERTIES	RESULTS
Colour	Pale Straw
Ref Index	1.5
Viscosity	45-55 Cps
Density	0.927-0.935
Molecular Weight	300
pH	6
Boiling Point	370^oC
Iodine Value (Wij’s method)	220 Min
Hydroxyl Value	180-200
Acid value	5 Max
Solubility	In Toulene or Benzene

FRICTION DUST

Cashew Friction Dust is used in brake lining,disc pads,clutch plate and brake blocks ( as a stabilizing agent in brake products).The reaction of cashew nut shell liquid and Paraformaldehye leads to crosslinking of product which is know as Friction Dust.

DI-NUCLEAR PHENOL (NEW PRODUCT)

UNDER CONSTRUCTION

Shyam Pheno-Chem Pvt Limited, Hyderabad, India.