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Multi-functional phosphate ester additive with a broad application spectrum

Hordaphos® MDAH

Hordaphos MDAH is a clear, colourless to yellowish liquid with an ester-like odour that may darken during storage. The product is soluble in organic solvents. When the ester is neutralized, it is emulsifiable in water.

For more details see our Video about Hordaphos.

  • Multi-functional additive
  • Good defoaming ability
  • Lowers surface tension and increases wetting power when used as dispersing agent
  • Solubilizing agent
For regulatory details such as the classification and labeling as dangerous substances or goods please refer to our corresponding Material Safety Data Sheet.
Hazard class Hazard category H-phrases
Skin corrosion Category 1B Causes severe skin burns and eye damage
Category of danger/Category Hazard symbol R-phrases
Corrosive Causes burns
Characteristics   Unit   Target value   DS¹)    TD²) Test method 
Phosphorus %(w/w)   11.0 - 12.0  

Photometry after oxidizing dissolution; (11/17) or wavelength dispersive X-ray fluorescence spectrometry; (11/23)  
Density g/cm³   1.00 - 1.04  

at 20 °C, flexural resonator; (11/65)  
Dynamic Viscosity mPa*s   approx. 300  

at 20 °C  
pH Value   approx. 2.5  

(10 g/l in Isopropanol/H2O 3:1)  
Acid Number mg KOH/g   290 - 330  

titration using alkali, 2nd end point at pH 9-10; (11/11)  
¹) Delivery specification: The product is constantly monitored to ensure that it adheres to the specified values. Test methods: Clariant method numbers 11/xx in brackets.
²) Technical data: The technical data are used solely to describe the product and are not subject to regular monitoring.  
As wetting agent with defoaming ability, Hordaphos MDAH is mainly used in alkaline cleaning agents and in surface treatment for the printing and coating industry. Furthermore, it is used as a dispersing agent in pigment pastes. In metal pigment pastes the ester acts as a corrosion inhibitor. Moreover, Hordaphos MDAH is used in extraction and flotation agents.  
Packaging and Handling
Delivery form

Hordaphos MDAH is despatched in 55 kg net tight head drums (440 kg pallets net), 200 kg net tight head drums (800 kg pallets net), 950 kg net containers or road tankers. 

Hordaphos MDAH must be stored in its tightly closed original container in a cool frost-free place away from direct sunlight. 

Minimum shelf life is 12 months from the date of shipping when stored according to the said conditions. 

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