3a. Soap Numbers and Values - Soap Calculator - Soap Manufacturing

TFM

This is the most important characteristic to understand the soap quality. This value is the percentage of Total Fatty Matter inside the Soap. The standard TFM for Toilet soap bars is 78%, while for Laundry soap 72% is considered in Europe. Lower value of TFM are acceptable, considering the quality decreasing. As described in the previous chapter, filled soap has a very low TFM, up to 50%

 

MOISTURE

This value in percentage represents the quantity of water inside the soap. The standard value for Toilet soap bars is 12%, while laundry soap includes more water inside.

 

GLYCERIN

This value in percentage represents the quantity of glycerin inside the soap. An amount of 6-8% is presents in semi boiled soap, while full boiled soap usually has an amount of 0.1-1%. If required the Glycerin can be added to the soap, a typical application is the translucent soap.

 

FREE CHLORIDE as NaCL

This value in percentage represents the quantity of NaCl inside the soap. A very low value like 0.4% can be consider acceptable in toilet soap, while for laundry soap the percentage usually increase up to 0.8% or also little bit more.