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Product name: 1,10-Phenanthroline Hydrate. Chemical Formula: C12H8N2 · xH2O. Appearance: White or pale yellow crystalline powder. Common uses: Research labs often rely on this as a reagent to detect metals such as iron, making it a key part of routine wet chemistry analysis.
Signal Word: Warning. Hazard Class: Harmful if swallowed, causes skin and eye irritation, toxic to aquatic organisms. Danger Symbols: Exclamation mark, environment. Specific Risks: Exposure irritates membranes and skin, meaning anyone handling the powder without protection deals with redness or burning eyes. Some reports link repeated exposure to respiratory discomfort.
Chemical Name: 1,10-Phenanthroline Monohydrate or Hydrate. CAS Number: 5144-89-8. Purity: Generally above 98 percent in laboratory grade supplies. Impurities: Trace solvents or inorganic salts may linger from the synthesis process, contributing little to hazard profile but adding potential for unknown reactions in sensitive experiments.
Inhalation: Remove to fresh air, monitor for coughing or shortness of breath, and seek medical advice if symptoms persist. Skin Contact: Rinse immediately with water, remove contaminated clothing, and use mild soap to wash thoroughly. Eye Contact: Flush with water for several minutes, holding eyelids open, because eye exposure to this compound stings fiercely and affects comfort all day. Ingestion: Rinse mouth if conscious—never attempt to induce vomiting; medical advice is crucial, since swallowing the powder introduces both acute stomach upset and the risk of longer-term toxicity.
Suitable Extinguishing Media: Use water spray, CO2, dry chemical, or foam. Hazards from Combustion: Heating liberates nitrogen oxides and carbon monoxide, both of which overwhelm small or poorly ventilated spaces. Personal Protection: Firefighters tackling a chemical fire wear self-contained breathing apparatus to avoid inhaling fumes or decomposition products.
Personal Precautions: Don gloves and goggles; prevent dusting. Environmental Precautions: Prevent powder from entering drains, do not wash down sinks—once in the water supply, this class of chelators persists and upsets metal cycles in aquatic environments. Clean-up methods: Carefully collect with a damp paper towel or vacuum equipped with a HEPA filter. Dispose of waste in properly labeled containers, avoiding actions that could generate dust or spread particles to surrounding workspaces.
Handling: Work in well-ventilated areas, avoid direct skin contact by wearing lab coat, safety glasses, and nitrile gloves. Storage: Keep containers tightly closed and dry, preferably in a cool, secure location. Store separate from acids, strong oxidizers, and reducing agents; moisture intrusion clumps the powder, making accurate weighing impossible. Use desiccators if frequent access is anticipated.
Engineering Controls: Fume hood use recommended to contain dust and fumes; always work at bench level to reduce spill impact. Eye Protection: Chemical splash goggles or safety glasses. Skin Protection: Laboratory gloves, long-sleeved clothing; launder contaminated clothes before re-use. Respiratory Protection: If dust becomes significant, a particulate mask rated for chemical safety is a simple preventive step. Exposure Limits: Not established for phenanthroline itself; general laboratory practice favors low airborne dust levels, keeping exposure well below nuisance thresholds.
Physical State: Solid crystalline powder. Color: Typically white to slightly yellow. Odor: Odorless. Melting Point: Ranges near 117–120°C (anhydrous form). Solubility: Moderately soluble in water and alcohol, facilitating easy solution prep but demanding swift cleanup of spills. Stability: Sensitive to prolonged exposure to moisture and light, eventually darkening and decomposing. Vapor Pressure: Not volatile at room temperature.
Stability: Stable under normal conditions and proper storage. Reactivity: Incompatible with strong oxidizing agents; high heat breaks down molecule, forms toxic gases. Decomposition Products: Nitrogen oxides, carbon monoxide, and other irritant fumes.
Acute Effects: Swallowing causes nausea, vomiting, and abdominal pain; dust can irritate lungs. Chronic Effects: Some studies suggest recurring exposure may impact the kidneys or liver after repeated or high-dose administration, but typical laboratory use keeps these risks low. Routes of Entry: Skin, eyes, inhalation, ingestion. Sensitization: Rare; most cases resolve after routine first aid. Carcinogenicity: Not classified as a cancer hazard by major agencies, but prudent practice still means using the smallest reasonable quantities.
Aquatic Toxicity: Toxic to fish and other aquatic life; interferes with metal balance, disrupts enzymes in local environments. Persistence: Tends to linger in water and sediment; breakdown occurs slowly, increasing risk over time if not disposed of responsibly. Wastewater Impact: Laboratory drains should not be a disposal route; environmental agencies flag this chemical for heightened concern due to metal chelation properties.
Waste Treatment: Place solid waste in containers designed for hazardous chemicals, label accordingly, and hand off to municipal or contract chemical waste handlers. Do Not: Flush down drains, trash, or municipal sewer; minimize leftover stock by planning experiments closely. Recycling: Not a practical option with this compound due to low volumes and potential for cross-contamination.
UN Number/Name: Not classified as dangerous for transport by air, road, or sea in typical laboratory pack sizes; bulk shipping may prompt extra scrutiny. Packing Group: Not regulated for small quantities. Precautions: Use sealed packaging to prevent accidental leaks or spills. Spill kits intended for organic powders simplify any clean-up in transit.
Worker Protection: OSHA and similar bodies require chemical hygiene plans for all users. Environmental Regulations: Local regulations frequently restrict disposal; laboratory management often audits chemical logs, helping avoid environmental release or unaccounted accumulation. Hazard Pictograms: GHS standard symbols apply in many jurisdictions to signal aquatic toxicity and acute health hazards; labels carry brief warnings and safe-handling pictograms to reinforce workplace safety goals.
