AdBlue M 6221 e 11-2006

1 Technical Leaflet M 6221 e November 2006 Page 1 of 6 = Registered trademark of Verband der Automobilindustrie AdBlue Very pure NOx-reduction agent for Diesel engines equipped with SCR catalysts. AdBlue fulfills the quality requirements drafted in the international standard ISO 22241-1:2006(E). Chemical nature Urea, carbamide, in ultra pure water CAS No. 57-13-6 EINECS-No. 200-315-5 Physical form and packaging AdBlue is supplied in road tankers, IBC's and cans. Shelf life At product temperatures between and 25 C AdBlue has a shelf life of 12 months after production (maximum product temperature 30 C, average product temperature 25 C).

2 M 6221 e November 2006 2 of 6 AdBlue Properties Delivery specification Test Item Unit Limits Test method Urea content % (m/m) ISO 22241-2 Ann. C Density at 20 C g/cm3 DIN EN ISO 12185 Refractive index at 20 C ISO 22241-2 Ann. C Alkalinity as NH3 % w/w max. ISO 22241-2 Ann. D Biuret % w/w max. ISO 22241-2 Ann. E Aldehydes mg/kg 5 max. ISO 22241-2 Ann. F Insolubles mg/kg 20 max. ISO 22241-2 Ann. G Phosphate mg/kg max.

3 ISO 22241-2 Ann. H Calcium mg/kg max. Iron mg/kg max.

4 Copper mg/kg max. Zinc mg/kg max.

5 Chromium mg/kg max. Nickel mg/kg max.

6 Aluminium mg/kg max. Magnesium mg/kg max.

7 Sodium mg/kg max. Potassium mg/kg max.

8 ISO 22241-2 Ann. I Identity Identical to reference ISO 22241-2 Ann. J These specification will be amended as soon as there are changes in the standards ISO 22241-1:2006(E) and ISO 22241-2:2006(E) to maintain compliance with the most actual standard. M 6221 e November 2006 3 of 6 AdBlue Physical properties Density p(T) 1,0401,0501,0601,0701,0801,0901,1001,110 -20-10 0 102030405060 708090100 Temperature [ C]Density [g/cm ]D ensity = A + B*T + C*T^2A = = = Source: Exp.

9 Data , BASF Density of frozen AdBlue approx. 1,03 g/cm3 Source: Exp. data , BASF Melting enthalpy of frozen AdBlue Melting enthalpy: +270 J/g Melting range (2 K/min): -20 C -6 C Source: Exp. data , BASF T [ C] Cp. exp. [J/g*K] Specific heat capacity Cp(T) of liquid AdBlue Cp(T) = 8E-06*T2 + *T + Source: Exp. data , BASF T [ C] J/(g*T) Specific heat capacity Cp(T) of frozen AdBlue Source: Exp.

10 Data , BASF Vapour pressure above liquid AdBlue T [ C] Pressureexp. [hPa] ln (p/bar) = - ( + T) T [Celsius] Mean dev., est.: 3% ln (p/Pa) = - Mean dev.