[tahir amin]

Dear All,

I am looking at literature available to me regarding the viscosity & specific heat capacity of NEAT SOAP  but couldn't found any concrete reference and a particular value in cP (centipoise).
This property is needed in order to size agitator and Neat soap transfer pump.
There is a neat soap storage tank with agitator and submerged steam coil. The outlet of tank is pumped to vacuum dryer and then finally to pellatization.
the only available data is the density of the neat soap = 0.88 g/cm³

any help or reference literature shall be highly appreciated.

Regards

tahir Amin

[curiouscat]

"soap" is so generic that I'd be surprised to find specific values. Most likely you'll get  a wide range at best.

[Arkcon]

Along those lines, where did you get the NEAT soap?  If you bought it in bulk from a vendor, they may have the viscosity for you.  If you've made it yourself, then you will probably have to buy a viscometer, and determine it yourself.  Its a good idea as well, as a form of quality control -- is this batch the same as all the others you've made before, etc.

[curiouscat]

 you will probably have to buy a viscometer, and determine it yourself. 

A cheap, very approximate way is to measure efflux time through a cup with a sharp, small hole. Can yield a pretty good estimate at times.

One online source says: Liquid soap 60°C 85 mPas
Another says 80 mPas

You really ought to have googled this up a bit.

[curiouscat]

Another point to consider is that the viscosity may vary with shear i.e. agitator rpm