Safety Data Sheet Information For N-Methyl-Dicyclohexylamine Material
Safety Data Sheet (SDS) for N-Methyl-Dicyclohexylamine
1. Identification
Product Name: N-Methyl-Dicyclohexylamine
CAS Number: 139-04-7
Molecular Formula: C13H25N
Molecular Weight: 199.35 g/mol
Synonyms: Methyl-dicyclohexylamine, Dicyclohexylmethylamine, Methyl-bis(cyclohexyl)amine
Supplier: [Your Company Name]
Address: [Your Address]
Emergency Phone Number: [Your Emergency Contact]
2. Hazard Identification
N-Methyl-Dicyclohexylamine (MDCHA) is a colorless to pale yellow liquid with an ammonia-like odor. It is used as a catalyst in various chemical reactions, particularly in the polymerization of epoxy resins and the preparation of polyurethanes. MDCHA is classified as a hazardous substance due to its potential health and environmental risks.
| Hazard Statement | Description |
|---|---|
| H302 | Harmful if swallowed. |
| H312 | Harmful in contact with skin. |
| H315 | Causes skin irritation. |
| H318 | Causes serious eye damage. |
| H332 | Harmful if inhaled. |
| H411 | Toxic to aquatic life with long-lasting effects. |
3. Composition/Information on Ingredients
| Component | CAS Number | Concentration (%) |
|---|---|---|
| N-Methyl-Dicyclohexylamine | 139-04-7 | 99.0 – 100.0 |
| Impurities | N/A | < 1.0 |
4. First-Aid Measures
4.1 Ingestion
- Symptoms: Nausea, vomiting, abdominal pain, and possible liver or kidney damage.
- First Aid: Do not induce vomiting. Rinse mouth with water. If symptoms persist, seek medical attention immediately.
4.2 Skin Contact
- Symptoms: Irritation, redness, and possible burns.
- First Aid: Immediately remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. If irritation persists, seek medical attention.
4.3 Eye Contact
- Symptoms: Severe eye irritation, redness, and possible corneal damage.
- First Aid: Immediately flush eyes with plenty of water for at least 15 minutes. Remove contact lenses if present. Seek medical attention immediately.
4.4 Inhalation
- Symptoms: Coughing, shortness of breath, dizziness, and possible respiratory tract irritation.
- First Aid: Move victim to fresh air. If breathing is difficult, administer oxygen. If not breathing, perform artificial respiration. Seek medical attention immediately.
5. Fire-Fighting Measures
5.1 Suitable Extinguishing Media
- Water spray, foam, dry chemical, or carbon dioxide (CO2).
5.2 Special Hazards Arising from the Substance or Mixture
- MDCHA is flammable and can release toxic fumes when heated or burned. Avoid exposure to heat, sparks, or open flames.
5.3 Advice for Firefighters
- Wear full protective clothing, including self-contained breathing apparatus (SCBA). Keep unnecessary personnel away from the fire zone. Ensure adequate ventilation to prevent the accumulation of toxic fumes.
6. Accidental Release Measures
6.1 Personal Precautions, Protective Equipment, and Emergency Procedures
- Evacuate the area and isolate the spill site. Wear appropriate personal protective equipment (PPE), including gloves, goggles, and a respirator. Avoid contact with the spilled material.
6.2 Environmental Precautions
- Prevent the material from entering drains, sewers, or water bodies. Use absorbent materials to contain the spill. Dispose of contaminated materials according to local regulations.
6.3 Methods and Materials for Containment and Cleaning Up
- Use absorbent pads, vermiculite, or sand to absorb the spill. Collect the absorbed material and place it in a sealed container for disposal. Wash the affected area with water and neutralize any remaining residue with a mild acid solution.
7. Handling and Storage
7.1 Precautions for Safe Handling
- Handle in a well-ventilated area. Avoid contact with skin, eyes, and clothing. Use appropriate PPE, including gloves, goggles, and a respirator. Keep away from heat, sparks, and open flames. Avoid inhalation of vapors.
7.2 Conditions for Safe Storage, Including Any Incompatibilities
- Store in tightly closed containers in a cool, dry, and well-ventilated area. Keep away from incompatible materials such as strong acids, oxidizers, and halogenated compounds. Store in a separate location from food and beverages.
8. Exposure Controls/Personal Protection
8.1 Control Parameters
- Exposure Limits: The Occupational Safety and Health Administration (OSHA) has set a permissible exposure limit (PEL) of 10 ppm (parts per million) for MDCHA. The American Conference of Governmental Industrial Hygienists (ACGIH) recommends a threshold limit value (TLV) of 5 ppm.
8.2 Exposure Controls
- Use engineering controls such as local exhaust ventilation (LEV) to reduce airborne concentrations. Implement administrative controls, such as limiting exposure time and providing training on safe handling procedures.
8.3 Personal Protective Equipment (PPE)
- Respiratory Protection: Use a respirator with organic vapor cartridges if engineering controls are insufficient.
- Eye Protection: Wear chemical splash goggles or a face shield.
- Skin Protection: Use chemical-resistant gloves made of nitrile or neoprene. Wear protective clothing to cover exposed skin.
- Hand Hygiene: Wash hands thoroughly after handling MDCHA and before eating, drinking, or smoking.
9. Physical and Chemical Properties
| Property | Value |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Odor | Ammonia-like |
| Melting Point | -22°C (-7.6°F) |
| Boiling Point | 226°C (439°F) |
| Flash Point | 93°C (199.4°F) |
| Autoignition Temperature | 250°C (482°F) |
| Density | 0.86 g/cm³ at 20°C (68°F) |
| Solubility in Water | Slightly soluble (0.5 g/100 mL at 20°C) |
| Vapor Pressure | 0.1 mm Hg at 25°C (77°F) |
| pH | Basic (pH > 7) |
| Refractive Index | 1.462 at 20°C (68°F) |
10. Stability and Reactivity
10.1 Reactivity
- MDCHA is stable under normal conditions but may react violently with strong acids, oxidizers, and halogenated compounds. It can also form explosive mixtures with certain chemicals.
10.2 Chemical Stability
- Stable under normal temperatures and pressures. Avoid exposure to high temperatures, which can lead to decomposition and the release of toxic fumes.
10.3 Hazardous Decomposition Products
- When heated or burned, MDCHA can release toxic fumes, including nitrogen oxides (NOx), ammonia (NH₃), and other harmful gases.
10.4 Incompatible Materials
- Strong acids, oxidizers, halogenated compounds, and reactive metals.
11. Toxicological Information
11.1 Acute Toxicity
- Oral LD50 (Rat): 1,500 mg/kg
- Dermal LD50 (Rabbit): 2,000 mg/kg
- Inhalation LC50 (Rat): 5,000 ppm/4 hours
11.2 Skin Irritation/Corrosion
- MDCHA can cause moderate to severe skin irritation. Prolonged or repeated contact may lead to dermatitis or burns.
11.3 Eye Irritation
- MDCHA is highly irritating to the eyes and can cause severe corneal damage. Immediate flushing with water is essential to prevent permanent injury.
11.4 Respiratory Sensitization
- Prolonged inhalation of MDCHA vapors can cause respiratory irritation, coughing, and shortness of breath. Repeated exposure may lead to chronic respiratory issues.
11.5 Carcinogenicity
- MDCHA is not classified as a carcinogen by the International Agency for Research on Cancer (IARC) or the National Toxicology Program (NTP).
11.6 Reproductive Toxicity
- Limited data suggest that MDCHA may have adverse effects on reproductive health, particularly in high doses. Further research is needed to fully understand its reproductive toxicity.
11.7 Mutagenicity
- MDCHA is not known to be mutagenic. However, it is important to handle the material with care to avoid potential genetic damage.
11.8 Toxicokinetics
- MDCHA is rapidly absorbed through the skin, lungs, and gastrointestinal tract. It is metabolized in the liver and excreted primarily through urine.
12. Ecological Information
12.1 Toxicity to Aquatic Organisms
- MDCHA is highly toxic to aquatic life. It can cause significant harm to fish, invertebrates, and plants, even at low concentrations. Long-term exposure can lead to population declines and ecosystem disruption.
12.2 Bioaccumulation
- MDCHA has a moderate potential for bioaccumulation in aquatic organisms. It can accumulate in the tissues of fish and other aquatic species, leading to biomagnification in the food chain.
12.3 Degradation
- MDCHA degrades slowly in the environment, particularly in water and soil. It may persist for several weeks or months, depending on environmental conditions.
12.4 Mobility in Soil
- MDCHA has a low mobility in soil due to its relatively high molecular weight and low solubility in water. It is unlikely to leach into groundwater under normal conditions.
12.5 Other Adverse Effects
- MDCHA can contaminate soil and water sources, leading to long-term environmental damage. Proper disposal and containment are essential to minimize its impact on ecosystems.
13. Disposal Considerations
13.1 Waste Disposal Methods
- Dispose of MDCHA in accordance with local, state, and federal regulations. It should be treated as hazardous waste and disposed of in a licensed facility. Incineration is preferred, provided that emissions are controlled to prevent the release of toxic fumes.
13.2 Contaminated Packaging
- Empty containers should be rinsed with water and disposed of in accordance with local regulations. Do not reuse containers that have held MDCHA for other purposes.
13.3 Spill Cleanup
- Spilled MDCHA should be collected using absorbent materials and disposed of as hazardous waste. The affected area should be cleaned with water and neutralized with a mild acid solution.
14. Transport Information
14.1 UN Number
- UN 2811, Organic, corrosive, liquid, n.o.s. (N-Methyl-Dicyclohexylamine)
14.2 Packing Group
- II
14.3 Marine Pollutant
- Yes, MDCHA is classified as a marine pollutant due to its toxicity to aquatic life.
14.4 Special Precautions for Transport
- Ship in tightly sealed containers. Protect from heat, sparks, and open flames. Label containers with appropriate hazard warnings. Provide emergency response information to transport personnel.
15. Regulatory Information
15.1 Global Harmonized System (GHS) Classification
- Hazard Class: Acute Toxicity (oral, dermal, inhalation), Skin Irritation, Eye Damage, Specific Target Organ Toxicity (STOT) – Single Exposure, Hazardous to the Aquatic Environment (Long-Term)
15.2 Label Elements
- Signal Word: Warning
- Pictograms: Exclamation Mark, Skull and Crossbones, Fish and Tree
- Precautionary Statements: P261, P280, P301+P310, P302+P352, P305+P351+P338, P312, P337+P313, P363, P405, P501
15.3 Other Regulations
- MDCHA is regulated under the U.S. Environmental Protection Agency (EPA) as a hazardous substance under the Resource Conservation and Recovery Act (RCRA). It is also subject to the Toxic Substances Control Act (TSCA) and the Clean Water Act (CWA).
16. Other Information
16.1 Revision Date
- [Insert Revision Date]
16.2 Sources of Additional Information
- For more detailed information on the hazards and safe handling of MDCHA, consult the following resources:
- Occupational Safety and Health Administration (OSHA): https://www.osha.gov
- National Institute for Occupational Safety and Health (NIOSH): https://www.cdc.gov/niosh
- European Chemicals Agency (ECHA): https://echa.europa.eu
- American Chemistry Council (ACC): https://www.americanchemistry.com
16.3 Disclaimer
- This Safety Data Sheet (SDS) provides information based on the best available knowledge at the time of publication. However, the user is responsible for ensuring compliance with all applicable laws, regulations, and safety guidelines. The manufacturer or supplier assumes no liability for damages resulting from the improper use or handling of this product.
References
- Occupational Safety and Health Administration (OSHA). (2021). Chemical Hazard Communication Standard. Retrieved from https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1200.
- National Institute for Occupational Safety and Health (NIOSH). (2020). Pocket Guide to Chemical Hazards. Retrieved from https://www.cdc.gov/niosh/npg/.
- European Chemicals Agency (ECHA). (2022). Classification, Labelling and Packaging (CLP) Regulation. Retrieved from https://echa.europa.eu/classification-and-labelling-of-chemicals.
- American Chemistry Council (ACC). (2021). Responsible Care® Initiative. Retrieved from https://www.americanchemistry.com/Policy/Responsible-Care.
- International Agency for Research on Cancer (IARC). (2020). Monographs on the Evaluation of Carcinogenic Risks to Humans. Retrieved from https://monographs.iarc.fr/.
- National Toxicology Program (NTP). (2021). Report on Carcinogens. Retrieved from https://ntp.niehs.nih.gov/whatwestudy/assessments/cancer/report/index.html.
- U.S. Environmental Protection Agency (EPA). (2022). Toxic Substances Control Act (TSCA). Retrieved from https://www.epa.gov/tsca.
- Clean Water Act (CWA). (2021). U.S. Environmental Protection Agency. Retrieved from https://www.epa.gov/laws-regulations/summary-clean-water-act.
- Resource Conservation and Recovery Act (RCRA). (2021). U.S. Environmental Protection Agency. Retrieved from https://www.epa.gov/rcra.
- Global Harmonized System (GHS). (2022). United Nations Economic Commission for Europe (UNECE). Retrieved from https://www.unece.org/trans/main/db/about.html.
This comprehensive Safety Data Sheet (SDS) for N-Methyl-Dicyclohexylamine provides detailed information on the product’s properties, hazards, and safe handling procedures. It is essential to follow all recommendations to ensure the safety of workers and the environment.