Product Name: Tetrabutylammonium Hydrogen Phosphate
Chemical Formula: C16H36NO4P
Synonyms: Tetrabutylazanium hydrogen phosphate
Recommended Use: Laboratory reagent, specialty synthesis
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CAS Number: 38700-61-3
UN Number: Not classified as dangerous under transport regulations
Emergency Overview: White crystalline powder or solid that produces mild to moderate eye and skin irritation, best handled in controlled and ventilated areas by trained personnel wearing proper protective equipment.
Classification: Eye Irritant (Category 2A), Skin Irritant (Category 2)
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation. May cause respiratory irritation if inhaled in dust or powder form.
Precautionary Statements: Avoid breathing dust. Wash exposed skin thoroughly after handling. Use in a well-ventilated area.
Health Hazards: Prolonged exposure can lead to worsening respiratory or dermal symptoms in sensitive individuals. Ingestion may cause gastric upset and irritation.
Environmental Hazards: Spilled material may disrupt aquatic environments in high concentrations.
Chemical Name: Tetrabutylammonium hydrogen phosphate
CAS: 38700-61-3
Concentration: 98-100%
Impurities: Negligible under typical commercial production, with any deviations noted by batch analysis certificates.
Eye Contact: Rinse immediately with flowing water for 15 minutes, holding eyelids open. Seek medical advice if irritation persists.
Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing and shoes; launder before reuse. Seek medical attention if skin reaction occurs.
Inhalation: Move affected individual to fresh air. Support breathing with oxygen if symptoms develop, and consult a medical professional.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek immediate medical assistance, especially if large amounts are swallowed or symptoms develop.
Symptoms: Redness, itching or pain in eyes and on skin, throat or respiratory irritation, abdominal discomfort if swallowed.
Suitable Extinguishing Media: Use water spray, dry chemical, foam, or carbon dioxide for surrounding materials; product itself is not highly flammable.
Unsuitable Extinguishing Media: Broad jet of water can cause material dispersal and complicate containment.
Specific Hazards: Thermal decomposition may produce oxides of phosphorus, nitrogen oxides, and carbon monoxide.
Protective Equipment: Firefighters should use self-contained breathing apparatus and standard protective clothing.
Special Instructions: Maintain a safe distance, avoid inhaling vapors or combustion products, and contain runoff to prevent environmental contamination.
Personal Precautions: Shut off any ignition sources. Isolate spill area and ventilate. Wear suitable respiratory protection, gloves, and goggles.
Environmental Precautions: Prevent material from entering drains, surface water, or soil. Collect spillage mechanically and place in suitable, labeled containers for disposal.
Cleanup Methods: Sweep up using tools that avoid producing dust. Wash spill site after material pickup is complete.
Safe Handling: Use only in designated chemical fume hoods or ventilated areas. Handle in accordance with good laboratory safety practices. Avoid breathing dust and contact with eyes, skin, and clothing.
Incompatible Materials: Strong oxidizers, acids, or bases can react vigorously. Store away from these substances.
Storage Conditions: Store tightly closed in a cool, dry, and well-ventilated place. Keep away from heat, moisture, and incompatible materials.
Specific Use Considerations: Restrict access to trained personnel, and maintain up-to-date inventory and safety records.
Exposure Limits: No specific occupational exposure limits established, but handle with caution to minimize contact and inhalation.
Engineering Controls: Use local exhaust ventilation to control airborne dust. Maintain eyewash stations and safety showers nearby.
Personal Protective Equipment: Chemical safety goggles, lab coat, disposable gloves made of nitrile or PVC, and approved dust mask or respirator for high-dust applications.
Hygiene Measures: Do not eat, drink, or smoke during use. Remove and wash contaminated clothing before reuse.
Appearance: White crystalline powder or solid
Odor: Odorless or faint amine-like
Odor Threshold: Not established
Melting Point: 130-140°C (decomposition may occur prior to melting)
Boiling Point: Not applicable, decomposes on heating
Solubility: Soluble in water and lower alcohols
pH (1% Solution): 8-9
Vapor Pressure: Negligible at ambient temperatures
Relative Density: Approximately 1.10-1.20 g/cm³
Partition Coefficient (log Kow): Not available
Flash Point: Not flammable under normal conditions
Auto-ignition Temperature: Data not available
Upper/Lower Flammability Limits: Not determined
Evaporation Rate: Not applicable
Chemical Stability: Stable under recommended storage conditions and at room temperature.
Reactivity: Tends not to react with most substances under standard laboratory or storage conditions.
Conditions to Avoid: Excessive heat, exposure to acids or bases, moisture.
Hazardous Decomposition Products: Emits toxic fumes of phosphorus oxides, nitrogen oxides, and carbon monoxide if heated to decomposition.
Incompatible Materials: Strong acids, strong oxidizers, and strong bases.
Polymerization: Will not occur under normal conditions.
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: No specific LD50 available; not acutely toxic based on chemical structure, but large doses may cause systemic effects.
Skin Corrosion/Irritation: Causes mild to moderate skin irritation.
Serious Eye Damage/Irritation: Causes irritation, possible redness, watering.
Respiratory or Skin Sensitization: Allergic reactions unlikely but possible in sensitive individuals.
Chronic Toxicity: No data indicating carcinogenic, mutagenic, or reproductive effects at this time.
Other Information: Practice safe handling to avoid cumulative exposures, particularly for workers with sensitivities.
Ecotoxicity: Data not fully established; potential exists for aquatic toxicity in concentrated spills.
Persistence and Degradability: Ingredient expected to degrade through standard wastewater treatment or natural processes but may persist in anaerobic conditions.
Bioaccumulative Potential: Low potential for bioaccumulation due to water solubility.
Mobility in Soil: Mobile in aqueous environments and may penetrate soil if released in large quantities.
Other Adverse Effects: Avoid uncontrolled release to natural waters or soil to prevent local ecosystem impact.
Waste Treatment Methods: Collect waste in closed, labeled containers. Dispose of through approved chemical waste incineration or landfill in accordance with local, regional, and national regulations.
Contaminated Packaging: Triple rinse containers before disposal as hazardous waste.
Special Precautions: Do not discharge into drains, surface water, or soil. Spilled or contaminated product should be treated as hazardous material.
UN Number: Not regulated for transport
Proper Shipping Name: Tetrabutylammonium hydrogen phosphate
Transport Hazard Class: Not classified as hazardous
Packing Group: Not assigned
Environmental Hazards: Avoid significant releases during transport
Special Transport Precautions: Secure tightly sealed containers to prevent leaks and minimize dust generation; carry documentation in compliance with transport authority regulations.
OSHA Status: Not specifically regulated, but general chemical safety standards apply
TSCA Inventory: Listed
EC Inventory: Listed (EINECS/ELINCS)
REACH Status: Registered or pre-registered for relevant uses
SARA Title III: Not subject to reporting under Section 302, 304, or 313
Other Local or National Regulations: Review chemical hygiene and environmental control standards for the workplace and region.
Labeling Requirements: Hazard pictogram for skin/eye irritation, relevant warning and precaution statements.
