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Name: Tetraethylammonium Chloride
Chemical Formula: C8H20ClN
Common Uses: Researchers use it in neuroscience, often as a potassium channel blocker, and chemical labs turn to it for experiments involving organic synthesis.
Appearance: This compound usually looks like a white, crystalline powder. Sometimes, it can draw in moisture from the air.
Synonyms: TEA chloride comes up often in academic papers.
Main Health Risks: Exposure can irritate the eyes, skin, and respiratory tract. In higher doses, ingestion may upset the stomach or trigger neurological symptoms reminiscent of muscle weakness or dizziness.
Label Elements: A “harmful” warning gets attached due to potential acute health effects. Chronic effects aren’t well documented, but the risk of irritation is well accepted.
Precautionary Measures: Avoid dust generation, don’t eat, drink, or smoke near the material. Proper ventilation cuts down on risk.
Chemical Name: Tetraethylammonium Chloride
CAS Number: 56-34-8
Purity: Lab-grade product is nearly pure; trace impurities can exist depending on the source.
Inhalation: Move to fresh air, seek medical attention if symptoms such as coughing, difficulty breathing, or throat irritation stick around.
Skin Contact: Wash exposed area thoroughly with water, remove contaminated clothing. Medical advice should be sought for persistent redness or discomfort.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and if it’s easy, then continue rinsing.
Ingestion: Rinse mouth with water. If large amounts are swallowed or discomfort persists, consult a physician.
Suitable Extinguishing Media: Use water spray, dry chemical, foam, or carbon dioxide.
Hazards: The compound doesn’t burn easily, but can produce hazardous gases like nitrogen oxides and hydrogen chloride if involved in a fire.
Protective Equipment: Firefighters should wear full protective gear and a self-contained breathing apparatus.
Personal Protection: Dust mask or respirator, chemical safety goggles, and gloves come in handy for protecting skin and airway.
Spill Clean-up: Use inert absorbent material to collect spilled powder. Sweep or scoop carefully, avoid creating airborne dust, and dispose in a sealed container.
Environmental Precautions: Prevent entry into waterways, drains, or soil. Even though the chemical isn’t notably toxic to the environment, uncontained release wastes lab resources and disrupts clean working conditions.
Handling: Work in a lab hood if possible. Wear eye protection and gloves, especially during weighing or transfers. Clean spills instantly, keep containers tightly closed, and label everything clearly.
Storage: Cool, dry storage makes a difference, as TEA chloride can clump in humid conditions. Keep containers out of direct sunlight and tightly sealed to stop it from drawing in moisture.
Engineering Controls: Fume hoods or local exhaust really help prevent dust build-up. Always avoid eating, drinking, or smoking in the workspace.
Personal Protective Equipment: Lab coats, chemical-resistant gloves, and safety glasses do the trick. For dusty operations, a dust mask adds another layer of safety.
Appearance: White to off-white crystalline powder.
Odor: Almost odorless.
Solubility: Readily dissolves in water.
Melting Point: Reports put the melting range around 300°C, but decomposition may kick in before true melting.
Density: Sits right around 1.15 g/cm³.
pH: Neutral to slightly basic in solution.
Chemical Stability: Stable under normal lab conditions.
Conditions to Avoid: Moisture can lead to caking or degradation over time. Intense heat, especially in open containers, isn’t recommended.
Incompatible Materials: Strong oxidizers, strong acids, and alkalis can react unpredictably.
Hazardous Decomposition Products: Heating may produce toxic gases like hydrogen chloride and nitrogen oxides.
Acute Effects: High exposure leads to irritation of eyes, skin, mucous membranes, and possibly the nervous system.
Chronic Effects: Data on prolonged exposure is limited, but there’s no strong evidence for carcinogenicity or reproductive toxicity.
Routes of Exposure: Inhalation, skin and eye contact, and accidental ingestion. Symptoms range from mild discomfort to, in rare cases, neurological disturbances.
Aquatic Toxicity: Data is limited, but most tetraalkylammonium compounds show low toxicity to fish and aquatic life at laboratory concentrations.
Persistence and Degradability: These salts break down in water, especially with biological activity, though high concentrations introduce local risks if released in one spot.
Waste Disposal: Small amounts can go in chemical waste containers compliant with local, state, or national regulations. Do not flush large quantities down the drain.
Container Disposal: Empty containers still hold risk—triple rinse and send to an approved waste facility.
UN Number: Not classified as hazardous for transport under common shipping regulations.
Transport Hazards: Package securely to avoid spillage or damage. Labeling helps others know what they’re dealing with, even if the compound doesn’t fall into the most dangerous categories.
Occupational Exposure Limits: No established workplace exposure limits for TEA chloride, but handling recommendations line up with general lab safety guidance.
Chemical Inventory: Listed on many chemical regulatory inventories such as the US TSCA, EU REACH.
Risk Phrases and Safety Phrases: “Irritant to eyes, respiratory system, and skin,” and “In case of contact, rinse immediately with plenty of water.”
Restrictions: Not regulated as a hazardous material, yet common sense and institutional guidelines push for careful record keeping and responsible use.
