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Product Name: Neodymium Praseodymium Nitrate
Chemical Formula: NdPr(NO3)3•xH2O
CAS Number: 14797-55-8 (Neodymium Nitrate), 10361-79-2 (Praseodymium Nitrate)
Relevant Identified Uses: Research, optical materials, specialty glass
Supplier: Industrial supplier information should include address, phone, emergency contact, distributor name, and email for urgent communication
Synonyms: Neodymium-Praseodymium Nitrate Hydrate
Emergency Phone: National poison control or chemical incident line provided by supplier
Recommended Use Restrictions: For industrial and research applications only; not suitable for food, drug, or household use
Classification: Oxidizing solid (Category 3), Acute toxicity (Oral, Category 4), Skin irritation (Category 2), Serious eye damage (Category 1)
GHS Label Elements: Signal word: Danger; Symbols: Flame over circle, exclamation mark, corrosion
Hazard Statements: May intensify fire (oxidizer), Harmful if swallowed, Causes skin irritation, Causes serious eye damage
Precautionary Statements: Avoid inhalation, wash hands thoroughly after handling, wear protective gloves/eye protection/face protection, keep away from heat/sparks/open flames/hot surfaces
Routes of Exposure: Inhalation, ingestion, skin, and eye contact may all result in harm
Target Organs: Eyes, skin, respiratory system, gastrointestinal tract
Potential Health Effects: Redness, tearing, blurred vision, rash, abdominal pain, breathing discomfort
Environmental Risks: Toxic to aquatic life with long-lasting effects due to heavy metal ions
Emergency Overview: Crystalline solid; reacts violently with combustibles; produces toxic fumes when heated
Substance: Mixed metal nitrate
Components: Neodymium Nitrate (Nd(NO3)3•xH2O, >40%), Praseodymium Nitrate (Pr(NO3)3•xH2O, >40%), Water of Hydration (<20%)
Impurities: Trace rare earth elements (<0.1%)
CAS Numbers: Neodymium Nitrate 14797-55-8, Praseodymium Nitrate 10361-79-2
Molecular Weight: Ranges due to variable hydration; typically 438–470 g/mol
EC Number: 239-976-7 (Neodymium Nitrate), 233-828-8 (Praseodymium Nitrate)
Inhalation: Remove exposed person to fresh air immediately; seek medical attention if breathing difficulty occurs or cough persists; loosen tight clothing
Skin Contact: Remove contaminated clothing; wash affected skin thoroughly with plenty of soap and water; seek medical help for lasting irritation
Eye Contact: Rinse eyes cautiously with water for at least 15 minutes, lifting eyelids; remove contact lenses if present and easy to do; get prompt medical assistance
Ingestion: Rinse mouth with water; do not induce vomiting; get medical attention rapidly; provide information on the compound if possible
Advice for Rescuers: Avoid direct contact, wear gloves and eye protection; move victim to safety
Medical Notes: Symptomatic and supportive treatment recommended; provide this safety sheet to attending physician
Suitable Extinguishing Media: Use water spray, dry powder, or foam; avoid dry chemicals that react with nitrates
Unsuitable Media: Avoid carbon dioxide directly on product; can accelerate decomposition
Hazards from Combustion: Emits nitrogen oxides, rare earth oxides, and potentially corrosive fumes
Special Protective Equipment: Firefighters should use self-contained breathing apparatus; full protective clothing is required
Precautions: Move containers from fire area if safe to do so; do not allow runoff to enter water systems
Fire Fighting Instructions: Cool containers exposed to flames with water spray; retreat immediately if sound of venting or tank discoloration gives sign of rupture
Explosion Risk: Product intensifies fire, especially when in contact with organic or combustible materials
Personal Precautions: Avoid breathing dust/vapors; prevent skin and eye contact; use protective equipment including dust mask, goggles, gloves
Environmental Precautions: Prevent spill from entering drains, sewers, or waterways; notify authorities if large release reaches environment
Containment: Isolate area; keep people away from and upwind of spill
Clean-up: Sweep up using tools that avoid dust generation; transfer material to labeled waste container for disposal; ventilate area thoroughly after cleanup
Decontamination: Rinse affected surfaces with water after recovery of solids; avoid mixing waste containing organic materials or combustibles
Incompatible Materials: Do not allow spillage to come into contact with aluminum, zinc dust, reducing agents, flammable substances
Waste Disposal: Follow Section on Disposal Considerations; do not flush into surface water or municipal sewers
Reporting Requirements: Adhere to all local, regional, or national incident reporting protocols
Handling: Use only in well-ventilated areas; keep containers tightly sealed; prevent formation of dust; do not mix with combustibles or reducing agents
Personal Protection: Use gloves, safety goggles, chemical-resistant apron; avoid ingestion, inhalation, or prolonged skin contact
Storage: Store in original, closed containers made of compatible material; keep away from heat, sparks, flames, and direct sunlight; isolate from flammable products
Storage Conditions: Keep at room temperature or lower; stable under dry, cool storage; avoid high humidity environments
Special Precautions: Ensure clear labeling of containers; do not store near food, beverages, animal feed, or pharmaceuticals
Incompatibles: Do not store with strong acids, alkalis, organics, chloride-based compounds, fine metal powders
Exposure Limits: No established OSHA PEL or ACGIH TLV for neodymium or praseodymium nitrates; general nuisance dust limit: 10 mg/m³ (total), 3 mg/m³ (respirable)
Engineering Controls: Operate with local exhaust or fume hood; implement closed system handling wherever appropriate
Eye Protection: Chemical splash goggles
Skin Protection: Wear chemical-resistant gloves (nitrile or neoprene) and lab coat
Respiratory Protection: Use NIOSH-approved particulate respirator if dust is generated or exposure limits are exceeded
Hygiene Measures: Wash hands and face thoroughly after handling; avoid eating, drinking, or smoking in work areas
Environmental Controls: Use spill barriers and capture methods to prevent environmental release; monitor area for nitrate contamination in waste water
Appearance: Pinkish to pale green crystals or powder, depending on metal content
Odor: Odorless
Odor Threshold: Not applicable
pH (solution): Acidic, approximately pH 3–5 in water
Melting Point: Decomposes before melting at high temperature (typically above 250°C)
Boiling Point: Not measurable; decomposition occurs
Solubility: Highly soluble in water; slightly soluble in alcohol
Vapor Pressure: Not volatile
Density: 2.8–3.2 g/cm³ (depends on hydration)
Evaporation Rate: Not applicable
Partition Coefficient (n-octanol/water): Not available
Viscosity: Not applicable
Flash Point: Non-flammable solid
Explosive Properties: Not explosive, but can intensify burning of combustibles
Oxidizing Properties: Strong oxidizer; supports combustion
Decomposition Temperature: Releases nitrogen oxides above 170°C
Chemical Stability: Stable under dry, standard conditions; absorbs moisture from air
Reactivity: Reacts with reducing agents, combustible materials, organic substances, acids, and metal powders
Hazardous Reactions: Violent reaction possible with strong acids, thiols, sulfides
Hazardous Decomposition Products: Nitrogen oxides, rare earth oxides, praseodymium/neodymium oxides
Incompatible Materials: Strong acids, alkali metals, phosphorus, sulfur, hydrides, powdered metals, organic solvents
Polymerization: Does not occur
Conditions to Avoid: Heat, humidity, incompatible substances, open flames
Corrosiveness: Solution is mildly corrosive to metals over time
Likely Routes of Exposure: Skin contact, eye contact, inhalation, ingestion
Acute Toxicity: LD50 (Oral, Rat): 375–450 mg/kg estimated for rare earth nitrates
Skin Irritation: Causes redness, dryness, and possible rash
Eye Damage: Causes severe irritation, tearing, pain, possible damage to cornea
Inhalation: Dust can cause cough, sore throat, respiratory irritation
Ingestion: Abdominal pain, nausea, vomiting; risk increases for children
Chronic Effects: Rare earth exposure linked with lung changes, albeit at much higher doses
Mutagenicity/Carcinogenicity: Not listed as carcinogen by IARC, NTP, or OSHA; studies on rare earths have not linked them with mutations in humans
Target Organ Effects: High doses may impact liver, kidneys, lungs
Allergenicity: Rarely reported
Ecotoxicity: Highly toxic to aquatic organisms (fish, invertebrates, algae)
Persistence and Degradability: Not biodegradable; persists in sediment, forms stable complexes with organic/inorganic ligands
Bioaccumulative Potential: Rare earth metals show moderate accumulation in aquatic organisms
Mobility in Soil: Likely to bind soils and sediments; migrates slowly through soil
Other Adverse Effects: Nitrate run-off may cause eutrophication of water bodies
Water Hazard Classification: 2: hazardous to water (German regulation, WGK)
Precaution for Environment: Prevent release; treat wastes as hazardous; avoid disposal near water sources or sewage systems
Waste Handling: Treat all waste as hazardous; collect in tightly sealed, labeled containers for specialized disposal
Methods of Disposal: Incineration under controlled conditions or stabilization and landfilling in licensed hazardous waste facility
Disposal of Packaging: Decontaminate or dispose of via licensed hazardous waste handler
Prohibited Actions: Do not dispose with general refuse; do not flush down drains or discharge to surface water
Local Regulations: Dispose of in accordance with local, state, and federal environmental regulations
User Responsibility: Confirm waste classification before disposal with environment and safety managers
Sewage Disposal: Strongly discouraged; seek guidance from authorities if unavoidable
UN Number: UN 1469 (Nitrate, inorganic, n.o.s.)
Proper Shipping Name: Nitrates, inorganic, n.o.s. (contains Neodymium Nitrate, Praseodymium Nitrate)
Transport Hazard Class: 5.1 (Oxidizing substances)
Packing Group: III
Labels: Oxidizer
Marine Pollutant: Yes
Special Precautions: Avoid packing with flammable, organic materials or metals; secure containers against breakage; provide information on emergency measures
Regulatory Transport Codes: ADR/RID, IMDG, IATA recognized as oxidizer
TSCA Status: Components listed; regulated as hazardous chemical
OSHA: Classified hazardous under hazard communication standard 29 CFR 1910.1200
SARA Title III: Section 311/312: Immediate health, delayed health, fire hazard; Section 313: Not listed for toxic release inventory
CERCLA Reportable Quantity: Not assigned
REACH (EU): Nitrates subject to registration as substances of very high concern if handled above threshold quantities
California Proposition 65: Not listed
Canada DSL/NDSL: Present
Other International Regulations: EINECS/ELINCS listed, Dangerous Substances Directive: Oxidizer
Label Requirements: Comply with all local and international label, packaging, and transport requirements
