Chemfac NB-159 belongs to the organic phosphate ester family and is a free acid phosphate ester and the CAS Number is 68607-14-7. At room temperature, it is a pourable clear amber liquid and is soluble in water. It has a Gardner color maximum of 5, an acid value that ranges from 160 to 177 at a pH of 9.5, an acidity of 2.85 – 3.15 and a specific gravity of 1.08.
Chemfac NB-159 is used to enhance lubricity and emulsification attributes in metal working formulations. This product also provides mild extreme pressure properties to these same systems. Detergency, solubilization and wetting properties of hard surface cleaners are also improved by the addition of this product. It contains 4.0% phosphorus.