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Product Name: Tetramethylol Acetylene Diurea
Common Synonyms: TMAD; N,N'-Ethylenediurea, tetramethylol derivative
Chemical Formula: C7H16N4O6
CAS Number: 53908-71-5
Recommended Use: Resin intermediate, slow-release fertilizer coating, chemical applications
Manufacturer/Distributor: Contact details available on company website or supplier invoice
Emergency Phone Number: Reach out to local poison control center or designated company emergency hotline
Address: Manufacturer or supplier office physical address required for documentation
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Specific target organ toxicity—single exposure (Category 3), Environmental hazard (Aquatic Chronic Category 3)
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation; May cause respiratory irritation; Harmful to aquatic life with long-lasting effects
Pictograms: Exclamation mark
Precautionary Statements: Wash thoroughly after handling; Avoid breathing dust; Avoid release to environment; Wear protective gloves and eye protection
Description of Hazards: Dry powder can cause eye discomfort or skin sensitization in people with frequent exposure; Dust inhalation triggers coughing or slight throat irritation
Chemical Name: Tetramethylol Acetylene Diurea
Common Name: TMAD
CAS Number: 53908-71-5
Content (wt%): > 98%
Impurities: Free formaldehyde (< 0.2%), Byproducts of formaldehyde condensation (< 1.0%)
Additives: Trace moisture or stabilizers, usually less than 1% total
Eye Contact: Flush eyes with plenty of lukewarm water for at least 15 minutes, use fingertips to spread eyelids, seek medical attention if irritation persists
Skin Contact: Wash skin thoroughly with soap and water, remove contaminated clothing and wash before reuse, see a healthcare professional if redness or irritation appears
Inhalation: Move person into fresh air, keep comfortable for breathing, contact a doctor if symptoms like sneezing, coughing, or wheezing do not subside
Ingestion: Rinse mouth, do not induce vomiting, drink water if alert, get medical help if symptoms like nausea or stomach upset start
Notes to Physician: Treat symptomatically and supportively, give attention to risk of delayed allergic reaction with repeated exposures
Suitable Extinguishing Media: Water fog, foam, dry chemical powder, or carbon dioxide
Unsuitable Extinguishing Media: Avoid straight water streams which may spread burning powder
Specific Hazards: Combustion generates irritating gases like nitrogen oxides and formaldehyde; Dust in air can create explosion risk in enclosed spaces
Protective Equipment for Firefighters: Firefighters need full protective gear and self-contained breathing apparatus
Firefighting Advice: Evacuate area and remove personnel downwind, cool unaffected containers with water spray
Other Instructions: Run-off may create environmental hazard if it enters drains or watercourses
Personal Precautions: Wear chemical-resistant gloves, goggles, disposable dust mask; Avoid creating dust or breathing powder
Environmental Precautions: Prevent run-off from entering water systems or drains; Use barriers if necessary
Cleanup Methods: Shovel material into designated disposal containers using non-sparking tools, vacuum dust with explosion-proof equipment, ventilate affected area
Waste Disposal: Dispose of in accordance with local or national waste regulations for non-hazardous industrial chemicals
Other Notes: Avoid using water unless absolutely needed; wet material may become sticky and harder to collect
Safe Handling: Handle in well-ventilated spaces, avoid inhaling dust or letting dust accumulate, wash hands after handling
Storage Conditions: Keep in original, tightly closed containers; store in cool, dry, and well-ventilated rooms away from heat, flames, or direct sunlight
Incompatible Materials: Strong acids, strong bases, oxidizers, and reducing agents; contact may trigger chemical breakdown
Storage Temperature: Prefer storage below 35°C (95°F), avoid freezing or exposing to high humidity
Packaging Materials: Recommended use of polyethylene-lined fiber drums or plastic containers
Engineering Controls: Use local exhaust or general room ventilation for dust control, prevent powder dispersal
Personal Protective Equipment:
Appearance: White crystalline powder; may be slightly hygroscopic
Odor: Mild, formaldehyde-like
Odor Threshold: Not determined
pH: 7.0 to 8.5 (1% solution in water)
Melting Point/Freezing Point: Decomposes before melting, softening at around 110°C
Boiling Point: Not applicable (decomposes on heating)
Flash Point: No data, not expected to be a flammable solid under standard use
Evaporation Rate: Not applicable
Flammability: Low risk under normal storage, but dust can ignite if dispersed in air
Vapor Pressure: Not available
Vapor Density: Not applicable
Solubility: Moderately soluble in water; forms colloidal solutions
Partition Coefficient (n-octanol/water): Not determined
Auto-Ignition Temperature: Not available
Decomposition Temperature: >110°C, decomposition with release of toxic vapors
Viscosity: Not applicable
Other Data: Forms sticky slurry when mixed with water; dust forms during bulk bag opening or transfer
Chemical Stability: Stable under recommended storage and handling conditions
Hazardous Reactions: Contact with acids or bases may release formaldehyde; reacts with strong oxidizers
Polymerization: Not expected to occur
Conditions to Avoid: Excessive heat, moisture, contact with incompatible substances
Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, formaldehyde vapors
Incompatibility: Concentrated mineral acids, strong alkalies, potent oxidizing agents such as peroxides
Acute Toxicity: Oral (rat) LD50 estimated >2000 mg/kg; symptoms may include nausea, headache, or mild gastrointestinal upset
Skin Corrosion/Irritation: Causes mild skin irritation; repeated contact increases sensitivity
Serious Eye Damage/Irritation: Direct contact triggers immediate but temporary discomfort or redness
Respiratory Sensitization: Not classified as respiratory sensitizer but dusty environments cause irritation
Skin Sensitization: Possible allergic dermatitis from chronic exposure in susceptible individuals
Carcinogenicity: Not listed by IARC, NTP, OSHA
Mutagenicity: No significant data available
Reproductive Toxicity: No recognized adverse reproductive effects
Other Health Effects: Chronic low-level exposure may enhance response in people already sensitized to formaldehyde
Toxicity (Aquatic): Harmful to aquatic organisms at high concentrations, chronic exposure may injure small invertebrates or algae
Persistence and Degradability: Readily biodegradable in soil and water under aerobic conditions
Bioaccumulative Potential: Low, does not build up in aquatic food chains
Mobility in Soil: Moderately mobile, but tendency to break down rapidly limits off-site movement
Other Adverse Effects: Minor potential for nutrient pollution due to slow-release nitrogen content
Precautions: Prevent large scale spills from reaching surface waters
Waste Treatment Methods: Do not dump into sewers, surface water, or soil; Collect in sealed containers for chemical waste disposal
Recommended Disposal: Solid material may be landfill disposed if allowed by authority; Incineration in a chemical waste facility offers best environmental performance
Packaging: Clean containers may be recycled or landfilled, residue-contaminated shells treated as hazardous waste
Disposal Regulations: Follow local, state, and national environmental regulations for disposal or treatment
UN Number: Not regulated for transportation in most regions
UN Proper Shipping Name: Not classified as hazardous for transport
Transport Hazard Class: Not regulated
Packing Group: Not applicable
Environmental Hazards: Not a marine pollutant under typical shipping conditions
Special Precautions: Avoid breakage or spillage during handling, keep containers upright and closed
Transportation Notes: Store away from oxidizers and strong acids during transport
TSCA Status: Listed on U.S. Toxic Substances Control Act inventory
REACH Status: Exempt or registered under European REACH regulation
OSHA Classification: No specific hazard label requirements, considered potentially irritating
EPA Information: Not regulated under EPA hazardous waste codes but oversight may still apply to bulk disposal
SARA Title III Sections 311/312: Classified as immediate health hazard (irritant)
State Regulations: Subject to worker right-to-know laws in several states
Other Regulatory Listings: Not listed under Canada WHMIS as controlled product, no restrictions in Australia AICS or Japan ENCS
