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Name: Lithium Nitride
Chemical Formula: Li3N
Appearance: Finely divided powder, reddish-brown in color
Odor: Odorless
Primary Use: Often found on the shelf in research and specialty labs working with advanced ceramics or energy applications.
Hazard class: Strong irritant, reacts readily with water
Main dangers: Exposure can bring on eye and skin burns, especially because lithium nitride forms caustic lithium hydroxide and releases ammonia when it touches moisture. Getting it on bare hands spells trouble, and nobody wants it near the face. Powder can ignite in air if mishandled.
Warning symbols: Corrosive, harmful if inhaled, dangerous for eyes and lungs
Typical risk phrases: Avoid breathing dust, keep away from water, do not get in eyes, on skin, or on clothing.
Active substance: Pure Lithium Nitride (Li3N)
Impurities: May sometimes contain minor traces of lithium metal or lithium oxide due to synthesis or storage conditions, but purity above 98% becomes standard for most uses. No stabilizers, dyes, or bulk fillers.
Inhalation: Move affected person to fresh air and call for medical help if coughing or shortness of breath starts.
Skin contact: Quickly brush off any powder, rinse skin thoroughly with plenty of water, remove contaminated clothing, and seek urgent medical attention if irritation persists.
Eye contact: Rinse open eyes with water for at least 15 minutes then get prompt eye specialist attention. Lithium nitride’s reaction with water turns things from bad to worse, so don’t hesitate.
Ingestion: Rinse mouth—do not induce vomiting—and get medical help immediately.
Suitable extinguishing media: Use dry agents like Class D fire extinguishers, dry sand, or graphite powder. Water or CO2 turns firefighting into a serious chemical hazard, amplifying the risk as both trigger further reactions.
Risks and byproducts: Fire brings out caustic fumes, especially ammonia and corrosive lithium compounds, and these drift into air rapidly.
Protective gear: Full-face respirators, chemical-resistant suits, and gloves become essential.
Other guidance: Keep area well-ventilated, evacuate if fire grows, and avoid stepping into any white fumes.
Personal protection: Respiratory protection, chemical goggles, gloves, and coats that lithium can’t eat through
Environmental precautions: Block access to drains since run-off triggers more ammonia and becomes tough to deal with later. Take every spill as a potential crisis given how quickly lithium nitride can stir up problems with moisture.
Cleanup methods: Scoop or sweep up gently, avoid creating dust, store in sealed containers until proper disposal. Ventilation matters—a stuffy room will become hazardous fast.
Handling: Work under inert gas, mostly argon or dry nitrogen, especially for research or industrial handling. Basic gloves won’t cut it; thick but nimble gloves shield the hands from direct, dangerous contact.
Storage: Store in tightly closed, moisture-proof containers, in dry and cool ventilated rooms. Segregate from water sources, acids, and oxidizers. Label shelves and cabinets emphatically to avoid confusion.
Other notes: Don’t rely on glass jars: glass breaks and absorbs moisture slowly, turning a non-incident into an emergency.
Engineering controls: Fume hood, glovebox, or local exhaust ventilation
Personal protection equipment: Splash-proof goggles, face shield, heavy-duty gloves, full lab coats or coveralls
Respiratory protection: If dust risk climbs, bring out a certified particulate respirator
Hygiene tips: Wash skin and face thoroughly before breaks or leaving work; eating or smoking anywhere near lithium nitride isn’t just a mistake, it’s a ticket to the emergency room.
Physical state: Powder or sometimes a compact solid, shifting from pink to brown shades
Melting point: About 813°C
Boiling point: Decomposes before boiling
Solubility: Reacts with water instead of dissolving, forming alkaline, caustic products
Vapor pressure: Not significant at room temperature
Odor threshold: No recognizable odor—can’t rely on smell to warn of exposure
Reactivity: Water, damp air, alcohols, acids all lead to violent chemical reaction.
Stability: Stays stable only in strictly dry environments.
Hazardous products: Lithium hydroxide, ammonia gas, heat, and if storage fails, potentially flammable byproducts
Routes of exposure: Inhalation, ingestion, skin, and eyes
Short-term effects: Strong skin and eye irritation turning to burns; inhaling dust chokes lungs, causes coughing, and sets off respiratory irritation
Long-term effects: Chronic inhalation might sensitize airways or trigger bronchial spasms for years. Skin contact can produce deep burns or ulcers.
Sensitive groups: Asthmatics, those with existing lung conditions, or those with open skin wounds bear extra risk.
Environmental fate: Water contact converts lithium nitride into caustic compounds—runoff can spike pH in water sources, mess with aquatic life.
Aquatic toxicity: No exact numbers, but lithium salts and ammonia are well known for disrupting aquatic ecosystems and harming fish and small invertebrates.
Persistence: Lithium and nitrogen products persist in the environment, and ammonia released can linger as a troublesome pollutant.
Best approach: Treat as hazardous chemical waste—do not toss it in regular trash. Reacting with water, acids, or just open air in a landfill dials up both environmental and human risk.
Neutralization: Professionals in chemical waste handling can neutralize spent lithium nitride under carefully controlled, dry conditions. Otherwise, store for authorized hazardous waste collection.
Precautions: Containers must stay sealed and labeled until certified handlers take over disposal.
Shipping classification: Dangerous good by air, road, or sea
Packing guidance: Sealed, airtight containers surrounded by cushioning inert materials such as dry sand; shipping should comply with international regulations for hazardous solids.
General advice: Transport only under dry conditions, with extra care for temperature extremes and moisture protection.
International controls: Regulated as a hazardous material for transportation, occupational safety, and environmental protection
Workplace limits: Many regions feature exposure limits on ammonia and lithium hydroxide, recognizing them as significant byproducts of accidental contact.
Laboratory safety rules: Routine inventory, secure storage, emergency response plans, worker training, and clear hazard labeling all exist precisely because of lithium nitride’s energetic chemistry.
