Abstract:
These are homogeneous solutions of Coal tar acids or similar acids derived
from petroleum with or without hydrocarbons or other phenolic compounds including
substituted phenolic compounds or a mixture of these or a suitable emulsifier. It is
black in colour and on dilution with water it gives translucent off white colour. It
contains Monochlorophenol (MCP) whose RWC ( Rideal Walker Constant) value is
about 50- 60 or Chloro Xylenol whose RWC value is about 100 – 120. Higher the
RWC of the product, better is the quality.
