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Name: Gadolinium(III) Nitrate Hexahydrate
Chemical Formula: Gd(NO3)3·6H2O
Appearance: White crystalline solid
Common Uses: Research labs, electronics, specialty glass, phosphors, and as a reagent in chemical synthesis
Odor: Odorless
Solubility: Easily dissolves in water
Hazard Class: Classified as hazardous for health and environmental risks
Label Elements: Skull and crossbones symbol, exclamation mark
Main Hazards: Irritation to eyes and skin possible, respiratory problems after inhalation
Chronic Risks: Long-term exposure may disrupt kidney function and impact nervous system
Noteworthy Symptoms: Redness, pain, difficulty breathing
Main Component: Gadolinium(III) Nitrate Hexahydrate
Gadolinium Content: High weight percent, usually over 30% as Gd in solid
Other Components: Nitrate ions, water of hydration
Impurities: Trace amounts of rare earth metals may be present in commercial samples
Eye Contact: Flush eyes with water, keep eyelids open, seek medical care
Skin Contact: Remove contaminated clothes, wash skin thoroughly with soap and water
Inhalation: Move outdoors, provide fresh air, monitor for breathing trouble, consult a doctor
Ingestion: Rinse mouth well, drink water, avoid vomiting unless instructed by a professional, reach out for medical support
Immediate Concerns: Symptom observation continues up to a day after exposure
Flammability: Gadolinium nitrate itself does not ignite, can intensify fire because of oxidizing nitrate ions
Dangerous Decomposition: Can release poisonous nitrogen oxides on burning
Extinguishing Media: Use water spray, foam, or dry chemical; keep clear of combustible materials
Fire-Fighter Advice: Protective gear and self-contained breathing apparatus required if combating a fire in the presence of this compound
Spill Handling: Evacuate area, keep away from dust, ventilate space
Containment: Use non-combustible material for absorption, avoid getting chemicals on skin
Disposal of Waste: Scoop up and secure in chemical waste container
Environmental Protection: Keep out of waterways and storm drains, avoid uncontrolled releases into soil
Precautions: Minimize dust, work under ventilation, handle with dry gloves
Storage Conditions: Cool, well-ventilated, dry, and away from organic materials or reducing agents
Container Advice: Use tightly sealed containers made of materials not affected by strong oxidizers
Workplace Controls: Local exhaust, closed processes where practical
Personal Protective Equipment: Eye protection, gloves, lab coats
Respirator Use: Needed for dust or poor ventilation
Hygiene Practices: No eating, drinking, or smoking in work area; handwashing before breaks and leaving
State: Solid
Color: White
Melting Point: Loses water at well below 100°C; starts to decompose at higher temperatures
Boiling Point: Not applicable (decomposes)
Solubility: Highly soluble in water
Odor: Odorless
Stability: Stable under normal conditions but sensitive to heat/humidity
Chemical Reactivity: Strong oxidizer, reacts with organic materials or reducing agents
Stability: Stable if kept cool, dry, and away from incompatible substances
Incompatible Materials: Reducing agents, organic substances, combustible materials
Hazardous Decomposition: Nitrogen oxides and gadolinium oxides possible if heated strongly
Acute Effects: Skin, eye, and respiratory irritation from dust exposure
Long-Term Effects: Can impact renal and nervous systems if exposure is prolonged or repeated
Routes of Entry: Skin, eyes, inhalation, ingestion
Target Organs: Kidneys have particular sensitivity, as with other rare earth compounds
Aquatic Toxicity: Toxic to aquatic life in case of accidental release, almost no natural breakdown
Persistence: Rare earth ions stay in water and sediments
Bioaccumulation: Unlikely, but acidification of water sources could increase dissolved gadolinium available to organisms
Disposal Methods: Collect material for hazard waste incineration or chemical landfilling in line with local regulations
Environmental Caution: Don’t pour down drains
Contaminated Containers: Rinse thoroughly, dispose as hazardous waste
Packaging: Robust, sealed containers, moisture-proof
Handling for Transport: Mark as oxidizing solid, keep away from organic or combustible materials in transit
Regulatory Status: Recognized as hazardous for shipping under global rules for dangerous goods
Hazard Rating: Classified as oxidizer and health hazard in chemical inventories
Labeling: Requires hazard symbols for transport and lab stocks
Workplace Monitoring: Common in labs and advanced manufacturing, subject to workplace exposure oversight in many countries
