Major properities

The ability of very small amounts of scale inhibitors to keep large quantities of scalants in solution is know as the "Threshold effect". Phosphonates products are effective threshold scale inhibitors. This is due to phosphonates being adsorbed on the growth site of the scalant. This, alters the growth pattern of the scale, reducing the speed of growth and distorting the crystals. The threshold inhibition effectiveness of Berfos phosphonates depends on condition such as the type of scalant, water composition, supersaturation, temperature, pH and the type of phosphonate.

Sequestration (or chelation) is the ability of the substance to form a stable water soluble complex with metal ions. The sequestration efficiency depends mainly on pH and the presence of other ions. The best comparison, however, can be made by the customer under actual use conditions. The best comparison, however, can be made by the customer under actual use conditions.

Deflocculation or dispersion is the phenomenon that makes the agglomeration of growing crystals and other particulates more difficult. Berfos phosphonates have this property and also have the added attribute of maintaining such systems in a dispersed state over extended due to excellent hydrolytic stability.

Corrosion occurs when metal is attacked by oxygen in water. Berfos phosphonates in combination with zinc or phosphates and other corrosion inhibitors are highly effective in inhibiting corrosion. The effect of these combinations is much greater than the effect of any component by itself.

Berfos phosphonates are highly resistant to hydrolysis over a broad range of pH and temperature. This is very important for liquid formulations or where the process liquid is at elevated temperatures.

Chlorine is a common oxidiser and biocide widely used in a variety of applications. Berfos DHS and Berfos L 1000 offer maximum chlorine stability in comparison to other phosphonates. Other phosphonates have relatively poor stability towards chlorine.

Berfos LN 1004 PBTC Sodium Salt
Berfos DHS HEDP Acid
Berfos DHS HP Etidronic Acid
Berfos DND hedp Sodium Salt Liquid
Berfos DNT pdr HEDP Sodium Salt powder
Berfos DNT gran HEDP Sodium Salt granules
Berfos DNQ HEDP Sodium Salt (4 Na)
Berfos DNQ pdr HEDP Sodium Salt (4 Na) powder
Berfos DNQ gran HEDP Sodium Salt (4 Na) granules
Berfos CL ATMP N - oxide
Berfos VHC ATMP acid
Berfos VNT ATMP Sodium Salt
Berfos TNT EDTM Sodium Salt
Berfos QHC DETMP Acid
Berfos QPC DETMP PN Salt
Berfos QNT DETMP Sodium Salt
Berfos QNT conc DETMP Sodium Salt
Berpol P 9000 PAPEMP Acid
Berpol P 9500 mix phosphonic acids
Berpol PN 9570 mix phosphonic acids
Berpol DTN 940 mix phosphonic acids
Berpol DTN 954 mix phosphonic acids
Berpol RO 95 mix phosphonic acids
Berpol RO 95 D mix phosphonic acids

Commitment to excellence
Key properties of Berdis Polymers

BERDIS polymers have properties of Threshold Effect, Crystal Distortion, Dispersion and Chelation. These properties are enhanced and optimised for specific applications by controlling their molecular weight and use of appropriate monomers.
Large broad application base ensures that each application is serviced by a state-of-art polymer that has been carefully evaluated to deliver the best results consistently.

Berdis effect is defined as the ability of a very small amount of a product to keep large quantities of scalants in solution. As a result, scale crystals form slowly and by the time they grow large enough to form a scale deposit, they are washed out of the system.

Dispersion or de-flocculation is the phenomenon that makes agglomeration of particles difficult. Berdis polymers that are adsorbed on the surface of a particle, impart a high negative charge to that particle. When two such particles come near each other, they mutually repel each other.

Crystal Distortion is exhibited by all BERDIS polymers to a high degree. Precipitates that form in presence of BERDIS polymers are highly distorted, fluffy and easily washed away by flow of water so that subtrates prone to scale formation / incrustation are kept clean under extremely aggressive conditions.

Chelation is exhibited by all BERDIS polymers to a different degree. The polycarboxylic nature of these product's is similar to that of amine carboxylates and these are therefore able to chelate hardness salts.
Stability: all BERDIS polymers have high hydrolytic and thermal stability. These are also stable in presence of strong oxidants such as chlorine, hydrogen peroxide, chlorine dioxide, etc. under normal conditions of use and dosage levels.


  • Detergents
  • Industrual and Institutional Cleaners
  • Cooling Water Treatment
  • Boiler Water Treatment
  • Ceramics and Mineral Dispersion
  • Textile Auxiliaries
  • Oil Field Chemicals
  • Paper Mill Chemicals
  • Sugar Mill Antiscalants
  • Reverse Osmosis Antiscalants
  • Other...

Enzymes for detergency
Textile - Tanning

The industrial applications of enzymes are many and for this reason they are very often used in modern industry.
In fact, enzymes have allowed not only to modify industrial processes, but also the formulation and use of the finished product by the consumer.

For example, the use of efficient enzymes in detergents has made it possible to lower the temperature and the times of use of washing machines, with considerable savings in terms of economy and pollution: in addition to reducing the human impact on water, it avoids the maximum use of phosphates, the accumulation of which can cause damage to the environment.

In the detergents there are enzymes degrading proteins proteases (BERPROT) amylase (BERAMIL) and lipases (BERZYM LIP) fats which also have a less aggressive action on tissues, as opposed to some chemicals used in the past.
In the textile sector, an interesting application is that of the "worn out" effect (stone wash) typical of the denim fabric, that is denim.

In the past the pumice stone was used in order to introduce abrasions on the fabric or lighten the color; today, however, enzymes called cellulases (BERCEL) are able to perform the same operation in a faster and more controlled manner, so as to introduce a shade scale according to the concentration of enzyme used.

Always in the textile industry, enzymes like catalase, laccase and peroxidase allow the elimination of hydrogen peroxide and the treatment of dyes in the bleaching and dyeing phases. In the tanning sector, on the other hand, lipases and proteases facilitate production steps in leather and hides such as maceration and degreasing. Similarly, other enzymes have been introduced into the paper industry in the bleaching and de-inking phases.

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