Chemical name:

Organic Phosphate Ester


surfactants, anionic surfactants

Markets and applications:

lubricants and functional fluids, industrial lubricants, metallurgical industry, metalworking


corrosion inhibitors, emulsifiers, extreme pressure additives, lubricants, solubilizers, wetting agents


phosphate esters


PCC Chemax Inc.

CAS No.:



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.

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Properties and applications:

Product advantages:

  • Co-emulsifier when salted
  • Extreme Pressure
  • Boundary Lubrication
  • Detergent properties when salted,
  • Wetting when salted
  • Solubilizer
  • Corrosion Inhibitor

Product applications:

  • Metal Working
  • Household/I&I Cleaners
  • Metal Cleaning


extreme pressure additive emulsifier wetting agent lubricant solubilizer metal working metal cleaning HI&I cleaners
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