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

Safety Data Sheet
 SECTION 1 – IDENTIFICATION
 Name, Address, and Telephone of the Responsible Party
 Dyno Nobel LTD SDS #: 1135
 6440 S. Millrock Drive, Suite 150 Date: 05/01/2025
 Salt Lake City, Utah 84121 Supersedes: 01/01/2025
 Phone: 801-364-4800
 E-Mail: dna.healthsafety@am.dynonobel.com
 www.dynonobel.com
 Product Identifier
 Product Form: Liquid
 Product Name: Urea Solution
 Other Means of Identification
 Trade Name(s): Urea Solution, 32.5%, 40% or 50%
 Synonyms:
 Urea
 46-0-0
 DEF (Diesel exhaust fluid)

Product Class: Urea Solutions
 Intended Use of the Product
 Plant and crop fertilizer, DEF (diesel exhaust fluid)

Uses advised against: Not to be used as an ingredient for human food. Not approved for humans.
 Emergency Telephone Number
 FOR 24 HOUR EMERGENCY, CALL CHEMTREC (USA) 800-424-9300
 CANUTEC (CANADA) 613-996-6666

SECTION 2 – HAZARD(S) IDENTIFICATION
Classification of the Substance or Mixture
While this material is not considered hazardous by the OSHA Hazard Communication Standard (29 CFR 1910.1200), this
SDS contains valuable information critical to the safe handling and proper use of the product. This SDS should be
retained and available for employees and other users of the product.

Classification (GHS-US) Not classified
Label Elements
GHS-US Labeling No labeling applicable

Other Hazards
Hazards Not Otherwise Classified (HNOC): None known

SECTION 3 - COMPOSITION/INFORMATION ON INGREDIENTS

Mixture
Name Product identifier % (w/w) Ingredient Classification (GHS-US)
Water (CAS No) 7732-18-5 50 - 68 Not classified

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Most Important Symptoms and Effects Both Acute and Delayed
General: May cause skin irritation and eye irritation.
Inhalation: May cause respiratory irritation.
Skin Contact: May cause skin irritation.
Eye Contact: May cause eye irritation.
Ingestion: Do not induce vomiting. Get medical attention immediately.
Chronic Symptoms: None expected under normal conditions of use.
Indication of Any Immediate Medical Attention and Special Treatment Needed
If exposed and feeling unwell, seek medical advice (show the label where possible).

SECTION 5 - FIRE-FIGHTING MEASURES
 Extinguishing Media
 Suitable Extinguishing Media: Use extinguishing media appropriate for surrounding fire.
 Unsuitable Extinguishing Media: Do not use a heavy water stream. Use of heavy stream of water may spread fire.
 Special Hazards Arising from the Substance or Mixture
 Fire Hazard: Not combustible but may decompose at high temperatures.
 Explosion Hazard: Product is not explosive.
 Reactivity: Hazardous reactions will not occur under normal conditions.

Advice for Firefighters

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Safety Data Sheet
Urea (CAS No) 57-13-6 32 - 50 Not classified
Ammonia (CAS No) 7664-41-7 < 0.3 Flam. Gas 2, H221
 Liquefied gas, H280
 Acute Tox. 3 (Inhalation:gas), H331
 Skin Corr. 1B, H314
 Eye Dam. 1, H318
 STOT SE 3, H335
 Aquatic Acute 1, H400
 Aquatic Chronic 2, H411
Ingredients, other than those mentioned above, as used in this product are not hazardous as defined under current
Department of Labor regulations or are present in deminimus concentrations (less than 0.1% for carcinogens, less than
1.0% for other hazardous materials).

SECTION 4 - FIRST AID MEASURES
Description of First Aid Measures
Eye Contact: Immediately flush with large amounts of water, including under the eyelids. If pain or irritation persists, seek
medical attention. Speed and thoroughness in rinsing eyes are important to avoid permanent injury.
Inhalation: Remove to fresh air and keep at rest in a position comfortable for breathing. Obtain medical attention if
breathing difficulty persists.
Skin Contact: Remove contaminated clothing. Rinse immediately with plenty of water. Obtain medical attention if irritation
develops or persists. Wash contaminated clothing before reuse.
Ingestion: Do not induce vomiting. Get medical attention immediately.

SECTION 7 - HANDLING AND STORAGE
 Precautions for Safe Handling
 Store in compliance with all Federal, State, and local regulations. Store in a well-ventilated area, away from incompatible
 materials or sources of heat and ignition. Empty containers may contain residue and can be dangerous. Do not
 pressurize, cut, weld, braze, solder, drill, grind or expose such containers to excessive heat, flames, sparks or other
 sources of ignition; they may evolve noxious fumes.

Hygiene Measures: Handle in accordance with good industrial hygiene and safety procedures. Wash hands and other
 exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
 Conditions for Safe Storage, Including Any Incompatibilities
 Storage Conditions: Store in compliance with all Federal, State, and local regulations.
 Incompatible Materials: Nitric Acid, gallium, perchlorate, strong oxidizing agents, caustics and alkalis.

SECTION 8 - EXPOSURE CONTROLS/PERSONAL PROTECTION
 Control Parameters
 No Occupational Exposure Limits (OELs) have been established for this product or its chemical components.
 Exposure Controls

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SECTION 6 - ACCIDENTAL RELEASE MEASURES
Personal Precautions, Protective Equipment and Emergency Procedures
General Measures: Use proper hygiene practices and avoid excessive skin contact.
For Non-Emergency Personnel
Protective Equipment: Use appropriate personal protection equipment (PPE).
Emergency Procedures: Evacuate unnecessary personnel.
For Emergency Personnel
Protective Equipment: Equip cleanup crew with proper protection.
Emergency Procedures: Ventilate area.
Environmental Precautions
Prevent entry to sewers and public waters. Notify authorities if liquid enters sewers or public waters.
Methods and Material for Containment and Cleaning Up
For Containment: Contain any spills to prevent migration and entry into sewers or streams.
Methods for Cleaning Up: Clean up spills immediately and dispose of safely. Transfer spilled material to a suitable
container for disposal. Contact competent authorities as appropriate after a spill.
Reference to Other Sections
See heading 8, Exposure Controls and Personal Protection. .

Safety Data Sheet
 Precautionary Measures Fire: Exercise caution when fighting any chemical fire. Under fire conditions, hazardous fumes
 will be present.
 Firefighting Instructions: Use water spray or fog for cooling exposed containers.
 Protection During Firefighting: Do not enter fire area without proper protective equipment, including respiratory
 protection.
 Hazardous Combustion Products: Ammonia. Nitrogen oxides.
 Reference to Other Sections: Refer to section 9 for flammability properties.

SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES
Information on Basic Physical and Chemical Properties
Physical State : Liquid
Appearance : Colorless
Odor : Slight ammonia
Odor Threshold : Not available
pH : Not available
Evaporation Rate : Not available
Melting Point : Not available
Freezing Point : Not available
Boiling Point : Not available
Flash Point : Not applicable
Auto-ignition Temperature : Not available
Decomposition Temperature : 135 °C (275 °F) (Urea)
Flammability (solid, gas) : Not applicable
Lower Flammable Limit : Not applicable
Upper Flammable Limit : Not applicable
Vapor Pressure : Not available
Relative Vapor Density at 20 °C : Not available
Specific Gravity : 1.09 - 1.14 g/cc (9.1 - 9.5 lb/gal)
Solubility : Not available
Partition Coefficient: N-Octanol/Water : Not available

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Safety Data Sheet
Appropriate Engineering Controls: Ensure adequate ventilation, especially in confined areas. Emergency eye wash
fountains and safety showers should be available but not required.

Personal Protective Equipment: Safety glasses, gloves and general work clothing are recommended. Where ventilation
is insufficient, wear respiratory protection. Wearing of appropriate protective clothing and gloves is suggested if epidermal
sensitivity develops.

Materials for Protective Clothing: Not specified
Hand Protection: Wear chemically resistant protective gloves.
Eye Protection: Safety glasses.
Skin and Body Protection: Wear suitable protective clothing.
Respiratory Protection: Use a NIOSH-approved respirator or self-contained breathing apparatus whenever exposure
may exceed established Occupational Exposure Limits.
Environmental Exposure Controls: Collect spilled material into containers for disposal. Do not flush to surface water.
Spilled chemical can be used as fertilizer (46-0-0). Follow applicable Federal, State and local reporting requirements.
Consumer Exposure Controls: Do not eat, drink or smoke during use

SECTION 11 - TOXICOLOGICAL INFORMATION
Information on Toxicological Effects - Product
Acute Toxicity: Not classified
LD50 and LC50 Data: Not available
Skin Corrosion/Irritation: Not classified
Serious Eye Damage/Irritation: Not classified
Respiratory or Skin Sensitization: Not classified
Germ Cell Mutagenicity: Not classified
Teratogenicity: Not available
Carcinogenicity: Not classified
Specific Target Organ Toxicity (Repeated Exposure): Not classified
Reproductive Toxicity: Not classified
Specific Target Organ Toxicity (Single Exposure): Not classified
Aspiration Hazard: Not classified
Symptoms/Injuries After Inhalation: May cause respiratory irritation.
Symptoms/Injuries After Skin Contact: May cause skin irritation.
Symptoms/Injuries After Eye Contact: May cause eye irritation.
Symptoms/Injuries After Ingestion: Abdominal pain, nausea, vomiting and gastrointestinal irritation may result. (Urea
is a protein to ruminants, animals with the enzyme Urease in their digestive systems, but is moderately toxic to humans
when ingested).
Chronic Symptoms: None expected under normal conditions of use.
Information on Toxicological Effects - Ingredient(s)
LD50 and LC50 Data:
 Urea (57-13-6)
LD50 Oral Rat 8471 mg/kg
 Ammonia (7664-41-7)
LC50 Inhalation Rat 5.1 mg/l (Exposure time: 1 h)

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Safety Data Sheet
Viscosity : Not available
Explosion Data – Sensitivity to Mechanical : Not expected to present an explosion hazard due to mechanical
Impact impact.
Explosion Data – Sensitivity to Static : Not expected to present an explosion hazard due to static discharge.
Discharge
Crystallization Temperature : -11°C (12°F) for 32.5%, 0°C (32°F) for 40% and 18°C (62°F) for 50%
 solution

SECTION 10 - STABILITY AND REACTIVITY
Reactivity: Hazardous reactions will not occur under normal conditions.
Chemical Stability: Stable under recommended handling and storage conditions (see section 7).
Possibility of Hazardous Reactions: Hazardous polymerization will not occur.
Conditions to Avoid: Avoid exposing containers to excessive heat or flame. Keep separated from incompatible
materials.
Incompatible Materials: Nitric acid. Gallium. Perchlorates. Strong oxidizers. Caustic products. Alkalis.
Hazardous Decomposition Products: Ammonia. Nitrogen oxides.

SECTION 15 - REGULATORY INFORMATION
 US Federal Regulations
 Urea (57-13-6)
 Listed on the United States TSCA (Toxic Substances Control Act) inventory
 Ammonia (7664-41-7)
 Listed on the United States TSCA (Toxic Substances Control Act) inventory
 Listed on the United States SARA Section 302
 Listed on United States SARA Section 313
 SARA Section 302 Threshold Planning Quantity 500
 (TPQ)

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Safety Data Sheet
 LC50 Inhalation Rat 2000 ppm/4h (Exposure time: 4 h)

SECTION 12: ECOLOGICAL INFORMATION
Toxicity Not classified

Urea (57-13-6)
LC50 Fish 1 16200 - 18300 mg/l (Exposure time: 96 h - Species: Poecilia reticulata)
EC50 Daphnia 1 3910 mg/l (Exposure time: 48 h - Species: Daphnia magna [Static])
 Ammonia (7664-41-7)
LC50 Fish 1 0.44 mg/l (Exposure time: 96 h - Species: Cyprinus carpio)
EC50 Daphnia 1 25.4 mg/l (Exposure time: 48 h - Species: Daphnia magna)
LC 50 Fish 2 0.26 - 4.6 mg/l (Exposure time: 96 h - Species: Lepomis macrochirus)
Persistence and Degradability Not available
Bioaccumulative Potential
 Urea (57-13-6)
BCF fish 1 < 10
Log Pow -1.59 (at 25 °C)
 Ammonia (7664-41-7)
Log Pow -1.14 (at 25 °C)
Mobility in Soil Not available
Other Adverse Effects
Other Information: Avoid release to the environment.

SECTION 13 - DISPOSAL CONSIDERATIONS
Waste Disposal Recommendations: Dispose of waste material in accordance with all local, regional, national, and
international regulations.
Additional Information: Spilled chemical can be used as fertilizer.

SECTION 14 - TRANSPORT INFORMATION
In Accordance with DOT Not regulated for transport.
In Accordance with IMDG Not regulated for transport.
In Accordance with IATA Not regulated for transport.
In Accordance with TDG Not regulated for transport.

Safety Data Sheet
 SARA Section 311/312 Hazard Classes Fire hazard
 Immediate (acute) health hazard
 Sudden release of pressure hazard
 SARA Section 313 - Emission Reporting 1.0 % (includes anhydrous Ammonia and aqueous Ammonia
 from water dissociable Ammonium salts and other sources,
 10% of total aqueous Ammonia is reportable under this
 listing)
 Canadian Regulations
 Urea Solution, 32.5%, 40% or 50%
 WHMIS Classification Uncontrolled product according to WHMIS classification criteria
 Urea (57-13-6)
 Listed on the Canadian DSL (Domestic Substances List)
 WHMIS Classification Uncontrolled product according to WHMIS classification criteria
 Ammonia (7664-41-7)
 Listed on the Canadian DSL (Domestic Substances List)
 Listed on the Canadian IDL (Ingredient Disclosure List)
 IDL Concentration 1 %
 WHMIS Classification Class A - Compressed Gas
 Class B Division 1 - Flammable Gas
 Class D Division 1 Subdivision A - Very toxic material causing immediate and serious toxic
 effects
 Class E - Corrosive Material
 This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations (CPR) and
 the SDS contains all of the information required by CPR.

SECTION 16: OTHER INFORMATION, INCLUDING DATE OF PREPARATION OR LAST REVISION
Revision Date : 05/01/2025
Other Information : This document has been prepared in accordance with the SDS requirements of the
 OSHA Hazard Communication Standard 29 CFR 1910.1200. Party Responsible for the Preparation of This Document
Dyno Nobel LTD
6440 S. Millrock Drive, Suite 150
Salt Lake City, Utah 84121
Phone: 801-364-4800
Disclaimer
Dyno Nobel LTD and its subsidiaries disclaim any warranties with respect to this product, the safety or suitability thereof, the information contained
herein, 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. The information contained herein is provided for
reference purposes only and is intended only for persons having relevant technical skills. Because conditions and manner of use are outside of our
control, the user is responsible for determining the conditions of safe use of the product. 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 or information. Under no circumstances shall either Dyno Nobel Inc.

atsoever from any and all injuries (including death), losses, or damages to persons or property arising from the use of this product or information. Under no circumstances shall either Dyno Nobel Inc. or any of its subsidiaries be liable for special, consequential or incidental damages or for
anticipated loss of profits.

Dyno Nobel SDS

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