Material Safety Data Sheet (MSDS) for Benzoguanamine

Identification

Product Name: Benzoguanamine
Chemical Formula: C9H9N5
Chemical Name: 6-Phenyl-1,3,5-triazine-2,4-diamine
CAS Number: 91-76-9
Manufacturer/Supplier: Consult product packaging or accompanying documentation for supplier details.
Recommended Use: Commonly used in resins, adhesives, coatings, and plastics production for thermal and chemical resistance.
Emergency Telephone Number: Refer to local authority chemical emergency contacts for immediate response needs.

Hazard Identification

GHS Classification: Eye Irritant Category 2B, Skin Irritant Category 3
Signal Word: Warning
Hazard Statements: May cause mild skin irritation and eye discomfort. Prolonged inhalation might result in respiratory irritation or drowsiness.
Precautionary Statements: Avoid inhaling dust or powders. Do not get in eyes, on skin, or on clothing. Use in a well-ventilated area. Wear protective gloves and eye protection.

Composition / Information on Ingredients

Chemical Name: Benzoguanamine
Concentration: Typically above 98%
Other Ingredients: Trace synthesis-related impurities, usually below 2%, identity often proprietary but monitor with supplier documentation for allergy and reactivity concerns.

First Aid Measures

Inhalation: Remove to fresh air, keep comfortable for breathing. Seek medical attention for persistent cough, irritation, or respiratory distress.
Skin Contact: Wash area with soap and water. Remove contaminated clothing. If rash or irritation develops, get medical advice.
Eye Contact: Immediately flush eyes with running water for at least 15 minutes, holding eyelids apart. Contact healthcare provider if irritation persists.
Ingestion: Rinse mouth with water. Do not induce vomiting unless advised by a medical professional. Seek medical advice if symptoms appear or persist.

Fire-Fighting Measures

Suitable Extinguishing Media: Use water spray, foam, dry chemical powder, or carbon dioxide. Do not use high-pressure water jet.
Specific Hazards: Decomposition produces hazardous gases including nitrogen oxides, carbon monoxide, and hydrogen cyanide.
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective gear. Keep upwind and avoid inhaling vapors from decomposing material.
Firefighting Advice: Remove containers from zone of heat if safe. Prevent fire-fighting water from entering drains or watercourses.

Accidental Release Measures

Personal Precautions: Evacuate unnecessary personnel. Avoid creating dust. Wear appropriate protective equipment.
Environmental Precautions: Prevent spillage from entering drains, waterways, or soil. Contain spill using inert absorbent material.
Cleanup Methods: Sweep up and place in suitable container for disposal. Damp down any dust with water spray if needed. Ventilate area after clean-up.

Handling and Storage

Handling: Use with adequate ventilation. Minimize dust generation. For heavy or repeated use, wear appropriate protective clothing. Never eat, drink, or smoke during handling.
Storage: Keep containers tightly closed in a cool, dry, well-ventilated location. Store away from incompatible agents such as strong oxidizers and acids. Protect from sunlight and moisture. Keep away from ignition sources.

Exposure Controls and Personal Protection

Exposure Limits: No specific exposure limits established by OSHA or ACGIH. General dust exposure guidelines may apply.
Engineering Controls: Use local exhaust ventilation at points of dust generation. Keep airborne concentrations below recommended occupational exposure limits.
Personal Protection: Wear chemical-resistant gloves, safety goggles, and factory clothing. If airborne dust may be created, use a NIOSH-approved particulate respirator.
Hygiene Measures: Wash hands before breaks and when work is complete. Take off contaminated clothing and wash before reuse.

Physical and Chemical Properties

Appearance: White to off-white crystalline solid or powder
Odor: Odorless or very faint chemical odor
Melting Point: 226–230°C
Boiling Point: Decomposes before boiling
Solubility in Water: Low, less than 1 g/L at 20°C
pH: Not applicable for solid, mild acidic solution in water
Vapor Pressure: Negligible under standard ambient temperatures
Flash Point: Not applicable
Partition Coefficient (log Kow): Data limited, generally expected to be low due to polarity
Density: Roughly 1.4 g/cm³ at 20°C

Stability and Reactivity

Chemical Stability: Remains stable under recommended storage and handling conditions, sensitive to moisture over extended periods.
Incompatible Materials: Strong acids, strong bases, and oxidizing agents.
Hazardous Reactions: Thermal decomposition at high temperature or with improper storage emits hazardous fumes including nitrogen oxides and carbon oxides.
Hazardous Polymerization: Not reported under normal usage patterns.
Conditions to Avoid: Excessive heat, open flame, prolonged contact with moisture or oxidizers.

Toxicological Information

Acute Toxicity: Low oral toxicity, LD50 (oral, rat) estimated at greater than 2000 mg/kg.
Skin Corrosion/Irritation: Typically limited to mild irritation after prolonged or repeated contact.
Eye Damage/Irritation: Causes transient irritation and redness.
Respiratory Effects: Dust may irritate nose, throat, lungs, and in rare cases, symptoms like cough or shortness of breath.
Chronic Effects: No evidence linking chronic exposure to long-term health effects under normal workplace circumstances, though repeated dust contact may increase skin or respiratory sensitivity.
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA.
Additional Data: No reproductive toxicity or mutagenicity observed in available animal studies.

Ecological Information

Toxicity to Aquatic Organisms: Limited data, low acute toxicity to fish and aquatic invertebrates expected based on chemical structure.
Persistence and Degradability: Moderately persistent in soil and water. Biodegradability information presents low to moderate breakdown in typical environmental conditions.
Bioaccumulative Potential: Predicted low due to solubility and structure, minimal risk of bioaccumulation in aquatic species.
Mobility in Soil: Low to moderate mobility, careful handling avoids ground contamination.
Other Adverse Effects: Careless disposal leads to local water quality problems or aquatic ecosystem disruption. Never discharge into local waterways without proper treatment.

Disposal Considerations

Disposal Methods: Dispose of in accordance with federal, state, and local regulations. Incineration in chemical waste facility preferred.
Contaminated Packaging: Empty containers may retain product residues. Dispose as hazardous waste.
Precautions: Do not dump in drains, surface water, or soil. Engage professional waste contractors for bulk quantities.

Transport Information

UN Number: Not regulated under UN Model Regulations
Transport Hazard Class: Not classified as a hazardous material for transport by air, road, or sea
Packing Group: No special packing group required
Special Precautions: Protect against physical damage. Ensure containers are securely closed and labeled throughout transit. Avoid environmental release during loading and unloading.

Regulatory Information

OSHA: Not specifically listed as a hazardous chemical under US OSHA standards.
TSCA: Listed on the US Toxic Substances Control Act inventory.
REACH: Registered for manufacture and use within the European Union under ECHA guidelines.
SARA Title III: Not listed under SARA 302/304/313.
WHMIS (Canada): Not classified as hazardous under Canadian regulations.
Other National Lists: Check with your country's chemical registry for up-to-date status and restrictions, especially for large-scale or industrial applications.