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Exolit® AP 420

Aqueous solution of ammonium polyphosphate (APP).

Edition Date :
August 19, 2021

Exolit AP 420 is an approx. 45 % clear to cloudy aqueous solution of a short-chain ammonium polyphosphate.

Benefits

  • Suitable as flame retardant for wood, paper and textiles
  • Non-halogenated flame retardant with favorable environmental and health profile

 

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Exolit® AP 420

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Safety

For regulatory details such as the classification and labelling as dangerous substances or goods please refer to our corresponding Material Safety Data Sheet.

Specifications

Characteristics  Unit   Target value   DS¹)TD²)Test method 
Chemical Formula   [NH4PO3)]n

 
Phosphorus  % (w/w)   12.5 - 13.5  

Photometry after oxidizing dissolution; (11/17)  
Water / Moisture  % (w/w)   53.5 - 56.5  

Karl-Fischer titration; (11/21) (DIN 51,777)  
Nitrogen  % (w/w)   min. 9  

 
Density  g/cm³   1.29 - 1.31  

at 20° C, flexural resonator acc. to DIN 51,757-4; (11/65)  
Viscosity  mPa*s   max. 100  

at 20° C  
pH Value  % (w/w)   5.0 - 7.5  

Potentiometry at 20° C; (11/12)  
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.  

Applications

Exolit AP 420 is a suitable flame retardant for wood, paper and textiles.   

Packaging and Handling

Delivery form
Clear to cloudy aqueous solution

Packaging
Exolit AP 420 is dispatched in 150 l-PE hobbock/drums (180 kg net).

Storage
At temperatures between 10 and 25 °C Exolit AP 420 is stable for about 12 months. We recommend stirring the material before using it.
Exolit AP 420 can be carefully warmed up under stirring to 30°C to gain a clear solution.

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