DEF (DIESEL EXHAUST FLUID)
Document type: Tech Info
Categories: Industrial Chemicals

*These characteristics can not be compared to the limits set by ISO 22241 due to the product’s physical properties. The necessary sample analysis temperature of
20C(68F) for the ISO 22241 limits is too close to the salt out temperature of the product to allow accurate analysis at that temperature. Analysis is performed at a
higher temperature to prevent salt out and give the most accurate results.

Product Disclaimer: Please see reverse side.

TECHNICAL DATA SHEET
DIESEL EXHAUST FLUID (DEF) UREA SOLUTION
AQUEOUS NOx Solution 32.5%, 40% & 50%

SDS
 Properties #1135

Characteristics Units ISO-22241 ISO-18611-1 ISO-22241
 32.5% DEF Limits 40% DEF Limits 50% DEF Limits
 min. max. min. max. min. max
 Urea Content % 31.8 33.2 39 41 49 50.2
 Alkalinity (as NH3) % by weight - 0.2 - 0.5 - 0.31
 Biuret % by weight maximum - 0.3 - 0.8 - 0.46
 Insoluble matter mg/kg - 20 - 50 - 30.8
 Aldehydes mg/kg - 5 - 100 - 7.7
 Phosphate mg/kg - 0.5 - 1 - 0.77
 Aluminum mg/kg - 0.5 - - - 0.77
 Calcium mg/kg - 0.5 - 1 - 0.77
 Iron mg/kg - 0.5 - 1 - 0.77
 Copper mg/kg - 0.2 - - - 0.31
 Zinc mg/kg - 0.2 - - - 0.31
 Chromium mg/kg - 0.2 - - - 0.31
 Nickel mg/kg - 0.2 - - - 0.31
 Magnesium mg/kg - 0.5 - 1 - 0.77
 Sodium mg/kg - 0.5 - 1 - 0.77
 Potassium mg/kg - 0.5 - 1 - 0.77
 Density at 68F lbs/gal 9.07 9.12 9.22 9.82 N/A* N/A*
 Refractive Index at 68F 1.3814 1.3843 1.3947 1.3982 N/A* N/A*
 Salt-Out Temperature °F (°C) 12(-11) 32(0) 64(18)
 Recommended Storage Tempurature °F (°C) 40 (4.5) 80 (26.6) 40 (4.5) 80 (26.6) 40 (4.5) 80 (26.6)

TRANSPORTATION, STORAGE AND HANDLING
• The transport of DEF Urea solution does not require a DOT placard.
• DEF Urea solution will decompose into ammonia, carbon dioxide at 275 oF.
• ALWAYS thoroughly wash vessels containing DEF Urea solution before attempting repairs requiring welding.

Hazardous Shipping Description
• There are no DOT restrictions, other than weight, to transport UREA solutions
• Consult MSDS #1135 for more specific and comprehensive information about
 chemical hazards

ADDITIONAL INFORMATION – Visit dynonobel.com for Brochures and Case Studies related to this product.

Product Disclaimer: Dyno Nobel Inc. and its subsidiaries disclaim any warranties with respect to this product, the safety or suitability thereof, or the results to be obtained, whether express or implied, INCLUDING WITHOUT
LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND/OR OTHER WARRANTY. Buyers and users assume all risk, responsibility and liability whatsoever from any and
all injuries (including death), losses, or damages to persons or property arising from the use of this product. Under no circumstances shall Dyno Nobel Inc. or any of its subsidiaries be liable for special, consequential or
incidental damages or for anticipated loss of profits.

TECHNICAL DATA SHEET
DIESEL EXHAUST FLUID (DEF) UREA SOLUTION
AQUEOUS NOx Solution 32.5%, 40% & 50%

PRODUCT DESCRIPTION
DEF (Diesel Exhaust Fluid) Urea Solutions are produced by combining pure liquid urea from the urea process with clean plant steam condensate to produce the desired
concentration. The resulting DEF solution is free of any chemical additives such as formaldehyde. DEF is effective in controlling the emission of nitrogen oxides from stationary
sources such as power plants as well as from diesel powered cars, trucks, trains, ships and heavy equipment. DEF is non-toxic, non-hazardous and formaldehyde free. Our DEF
32.5% meets ISO standard 22241-1. DEF 40% meets ISO standard 18611-1:2014(E). DEF 50% meets limits that are calculated from ISO22241-1.

APPLICATION RECOMMENDATIONS
• DEF Urea solutions are marketed as ultra clean liquid fuel for catalytic abatement of nitrogen oxide emissions.
• The decomposition of DEF Urea solution into ammonia, carbon dioxide and steam provides a safe way to produce the ammonia fuel source. There is no need to have containers
 of compressed liquid ammonia in remote locations that are difficult to secure.
• Consult your Dyno Nobel representative for additional information.