Supplement of high quality for SCR systems INTELLIGENT Order Learn More NATURE-FRIENDLY SOLUTION


AdBlue® from Ecofol AD is a supplement of high quality, especially developed to reach the European standards Euro 4, Euro 5, Euro 6 for exhausted gases.

® = registered trademark of the Verband der Automobilindustrie e.V. (VDA)


Ecofol AD is a leading Bulgarian producer of liquid fertilizers. The company has been successfully growing since 1989 and the number of the products has been progressively increasing.

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Since 2015 Ecofol started a program for diversification of the production resultant in the production of AdBlue® according to ISO 22241 for one of the biggest sellers of products in Europe.

Since 2017 Ecofol started direct sales to Bulgarian clients.

Ecofol AD produces the product AdBlue® under ISO 22241 and license from the Verband der Automobilindustrie e.V. (VDA).

Ecofol has its own factory in Targovishte where the fertilizers and the diesel supplement are produced by applying the best and modernized methods.

The team of the company consists of more than 100 qualified specialists in the area of chemical production and trade.

Ecofol has developed logistics and own transportation means to guarantee fast, flexible and effective delivery.

AdBlue® from Ecofol AD is in compliance with ISO 22241.


AdBlue® from Ecofol AD is a water solution, compose of specialized SCR Urea and deeply deionized water, produced in controlled sanitary environment. The production AdBlue® is possible only with licensee issued by Verband der Automobilindustrie e.V. (VDA). It is designed to be used only in diesel motor vehicles, equipped with SCR technology. It helps the observation of Euro 5 criteria and Euro 6 harmful emissions standards. AdBlue®-obtained ammonia reacts in SCR catalyzer to the harmful nitrogen oxides which further are transformed into a water steam and nitrogen. It shall not be added to the fuel tank.

AdBlue® from Ecofol AD is suitable for all engines, provided with SCR systems – cars, buses, trucks, construction equipment, ships and even diesel fuel boilers.


AdBlue® from Ecofol AD is in compliance with ISO 22241. It is preserved for a period of twelve months at a temperature from -50С to 300С in tightly closed tanks or tubes, away from direct sunlight and dust.

In order to guarantee the quality of the product, tanks or tubes for products other than the original ones are not to be used.


Each AdBlue® batch from Ecofol AD is exercised a three-stage quality control in order to guarantee that the parameters are kept at 100 %.

  1. First preliminary test for base quality parameters in the factory laboratory of Ecofol AD, equipped with the last generation of measuring devices.
  2. A test is performed in Italian and German laboratory, along with a full accreditation of analysis and tests of AdBlue® for compliance with ISO 22241.
  3. Ecofol AD preserves a sample of each batch in controlled environment for 2 years. 
Parameters Specification ISO 22241 Unit of measure Analytical method
Urea 32.5 ± 0.7 % w / w ISO 22241-2 Ann.C
Density at 200С 1087 – 1093 kg/m³ DIN EN ISO 12185
Refraction index at 200С 1.3814 – 1.3843 ISO 22241-2 Ann.C
Alkalescency of NH3 ≤ 0.2 % ISO 22241-2 Ann.D
Biuret ≤ 0.3 % ISO 22241-2 Ann.E
Aldehydes ≤ 5 mg/kg ISO 22241-2 Ann.F
Insoluble substances ≤ 20 mg/kg ISO 22241-2 Ann.G
Phosphates (РО4) ≤ 0.5 mg/kg ISO 22241-2 Ann.H
Calcium ≤ 0.5 mg/kg ISO 22241-2 Ann.I
Iron ≤ 0.5 mg/kg ISO 22241-2 Ann.I
Copper ≤ 0.2 mg/kg ISO 22241-2 Ann.I
Zink ≤ 0.2 mg/kg ISO 22241-2 Ann.I
Chromium ≤ 0.2 mg/kg ISO 22241-2 Ann.I
Nickel ≤ 0.2 mg/kg ISO 22241-2 Ann.I
Aluminum ≤ 0.5 mg/kg ISO 22241-2 Ann.I
Magnesium ≤ 0.5 mg/kg ISO 22241-2 Ann.I
Sodium ≤ 0.5 mg/kg ISO 22241-2 Ann.I
Potassium ≤ 0.5 mg/kg ISO 22241-2 Ann.I


The preservation and use of AdBlue® are very important for its quality parameters prior to its entering into SCR system.

The product can be preserved and used only in containers and equipment made of pressed polyethylene, polypropylene or stainless steel which have never been used for other product than AdBlue®, distilled or deionized water. The equipment in which AdBlue® is produced, delivered or stored shall not be washed with plain water because even it can soil this exceptionally pure solution.


  • Guaranteed quality

  • Proved producer

  • Flexible and fast delivery

  • Good prices


ECOFOL guarantees the tranquility of the clients as far as the quality of the products is concerned, by keeping in their storehouse samples of each AdBlue® production batch for two years.

ECOFOL guarantees the quality of each produced liter by means of the quality control system ISO 9001:2008.

ECOFOL produces all the products considering the environment, by means of the environment control system ISO 14001:2005.


AdBlue® from Ecofol AD will be delivered in canisters of 3, 10 liters, in 1000-liter IBC containers. For bigger quantities is possible bulk delivery (by tank truck).

The delivery take place within 5 working days from confirmed order.

AdBlue® Туба от 3 литра Special

AdBlue® 3-Litre Tube Special

AdBlue® Туба от 10 литра Special

AdBlue® 10-Litre Tube Special

AdBlue® Туба от 10 литра Standard

AdBlue® 10-Litre Tube Standard

AdBlue® Туба от 10 литра Standard

AdBlue® 10-Litre Tube Economy

AdBlue® IBC контейнер от 1000 литра

AdBlue® IBC container of 1000 liters


The packing of 3 and 10 liters is protected by a cap by means of an excise label.
IBC containers of 1000 l. have a three-level protection through stamps.

AdBlue® from Ecofol AD is produced in compliance with ISO 22241.


Call us on +359 887 073 787 or send us your inquiry via the contact form

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