To Prepare and submit of cresol with soap solution I.P 66

Aim --  To Prepare and submit of Cresol with soap solution I.P 66

Rx
                      
    Cresol                         500 ml
   Potassium Hydroxide      42 gram
   Purified Water                 1000 ml
    Vegetable oil                  180 ml   
    
      


Sig.
     Parti affectae applicandus

Theory --

Cresols (also hydroxytoluene) are organic compounds which are methylphenols. They are a widely occurring natural and manufactured group of aromatic organic compounds, which are categorized as phenols (sometimes called phenolics). Depending on the temperature, cresols can be solid or liquid because they have melting points not far from room temperature. Like other types of phenols, they are slowly oxidized by long exposure to air, and the impurities often give cresols a yellowish to brownish red tint. Cresols have an odor characteristic to that of other simple phenols, reminiscent to some of a "coal tar" smell. The name cresol reflects their structure, being phenols, and their traditional source, creosote.

Procedure--

• Dissolve potassium hydroxide in 25 ml of purified water 
• add vegetable oil in this solution
• heat on water bath, Heating is continue with a small portion dissolve in water without thesepration of oil phase
• add cresol to the above soap solution, mix throughly.
• add sufficent water to make upto 1000 ml

Uses--

used as an disinfectant.