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Product Name: Niobium (V) Chloride
Synonyms: Niobium pentachloride, Niobium chloride
Chemical Formula: NbCl5
CAS Number: 10026-12-7
Manufacturer: Standard chemical suppliers for laboratory and industrial use
Recommended Use: Catalyst, chemical synthesis, research applications
Contact Information: Provided by supplier or distributor on packaging
GHS Classification: Acute toxicity (oral, inhalation, dermal), Skin corrosion/irritation, Serious eye damage/eye irritation
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage; harmful if inhaled, swallowed, or in contact with skin; irritates respiratory tract
Precautionary Statements: Avoid all contact with eyes, skin, and clothing; use only outdoors or in well-ventilated spaces; wear the full set of personal protective equipment
Pictograms: Corrosive, Acute Toxicity
Environmental Hazards: Hazardous to aquatic life, may cause long-term adverse effects
Substance: Niobium (V) chloride
Chemical Identity: NbCl5
Concentration: Greater than 99% (typical in labs and supply chains)
Impurities: Trace levels of tantalum and other halo-complexes possible but not routinely significant
Other Components: No stabilizers, diluents, or coating agents commonly present unless otherwise supplied
Inhalation: Remove person to fresh air promptly; seek medical attention for breathing difficulty or throat irritation; keep at rest
Skin Contact: Remove contaminated clothing; wash affected skin well with plenty of soap and water; immediately seek medical attention for burns or irritation
Eye Contact: Rinse with water continuously for at least 15 minutes; lift upper and lower eyelids every few minutes; get immediate medical help
Ingestion: Rinse mouth; do not induce vomiting; never give anything by mouth to an unconscious individual; seek prompt medical assistance
Most Important Symptoms: Burning sensations, pain, redness, blisters, cough, labored breathing, vision impairment
Suitable Extinguishing Media: Use dry chemical powder or carbon dioxide for small fires; do not use water or foam as product reacts violently with moisture
Specific Hazards During Fire-Fighting: Releases corrosive and toxic fumes of hydrogen chloride and niobium oxides on decomposition; creates risk of respiratory injury
Protective Equipment: Full chemical protective clothing; positive pressure self-contained breathing apparatus (SCBA); avoid contact with released chemicals
Fire Fighting Tactics: Isolate area; use water spray to cool unopened containers but avoid direct water contact with product; contain runoff from fire control
Personal Precautions: Put on suitable chemical-resistant gloves, eye protection, and respirator; keep unnecessary people away; do not touch spilled material
Environmental Precautions: Prevent product from entering soil, waterways, drains; notify authorities if large quantities escape
Cleanup Methods: Cover with dry inert absorbent (dry sand, vermiculite), sweep up carefully, transfer to closed container for disposal; ventilate area; do not use water
Handling: Work only in fume hood or well-ventilated area; wear gloves, goggles, protective clothing; avoid generation of dust and direct inhalation; keep containers tightly closed; do not eat, drink, or smoke near product
Storage: Keep containers dry and sealed; store away from moisture, bases, and strong oxidizers; maintain storage in a cool, well-ventilated chemical cabinet designed for corrosives, separate from food or combustible materials
Technical Measures: Use only equipment and containers resistant to strong acids; inspect regularly for leaks or damage
Occupational Exposure Limits: No specific U.S. OSHA or ACGIH limits; limit exposure to lowest possible levels
Engineering Controls: Use local exhaust, laboratory fume hood, or full building ventilation
Personal Protective Equipment: Chemical splash goggles, gloves (nitrile, rubber, or PVA), full-length protective clothing, and face shield for splashes
Respiratory Protection: Use approved respirator with acid gas and particulate filter for dusty or poorly ventilated situations
Hygiene Measures: Wash hands and face thoroughly after handling, before breaks, and at end of shift; launder contaminated clothing before reuse
Appearance: Yellow, crystalline powder, may form clumps
Odor: Pungent, acrid chlorine-like smell
Melting Point: 204 °C (399 °F)
Boiling Point: 248 °C (478 °F), sublimes
Density: About 2.7 g/cm3
Solubility: Decomposes in water, highly soluble in organic solvents like chloroform, reacts with alcohols
Vapor Pressure: Not well defined; forms fumes at room temperature through slow hydrolysis
pH: Not applicable; reacts with water
Other Data: Hygroscopic; reacts instantly with moist air to form corrosive fumes
Chemical Stability: Stable only in dry, air-tight conditions; decomposes rapidly under humid air
Reactivity: Reacts hard with water, alcohols, and bases, producing heat and hydrogen chloride gas
Conditions to Avoid: Contact with moisture, exposure to air, mixing with strong bases or oxidants
Incompatible Materials: Water, humid air, alkalies, oxidizing agents, combustibles
Hazardous Decomposition Products: Hydrogen chloride, niobium oxides
Acute Toxicity: Harmful by inhalation, swallowing, or skin absorption; limited direct human toxicity data, similar compounds known to produce burns and systemic injury
Skin Corrosion/Irritation: Causes severe burns; redness, ulceration, pain, blistering
Eye Damage/Irritation: Causes severe irritation, permanent eye damage possible
Respiratory Sensitization: Irritates lungs, nasal passages; coughing, breathing difficulty, risk of pulmonary edema in heavy exposures
Chronic Effects: No well-defined chronic toxicity data, but repeated exposure likely to cause lasting bronchial and dermal injury
Carcinogenicity, Mutagenicity, Reproductive Toxicity: Not classified for these hazards due to insufficient studies
Aquatic Toxicity: No complete aquatic toxicity data, but hydrochloric acid formation and niobium species may harm aquatic life
Environmental Fate: Decomposes to niobium oxychlorides and hydrochloric acid in moist air or soil
Persistence and Degradability: Hydrolyzes rapidly, not expected to persist as parent compound
Bioaccumulation: Limited data, low potential
Mobility in Soil: Highly reactive with moist soils, not likely to leach in original form
Other Hazards: Alters local pH, presents danger to aquatic organisms in case of spills
Disposal Methods: Consult licensed hazardous waste contractor; keep waste separate and sealed to avoid contamination with water or bases
Unused Product: Neutralize carefully with dilute alkaline solution, under controlled conditions by personnel with proper equipment
Contaminated Packaging: Rinse only with approved neutralizer or professional waste management; containers remain hazardous after use
Regulatory References: Follow all local, national, and international hazardous waste rules; reference EPA and equivalent country-specific codes
UN Number: UN 3260
Proper Shipping Name: Corrosive inorganic solid, n.o.s. (includes Niobium (V) Chloride)
Transport Hazard Class: 8 (Corrosive)
Packing Group: II
Marine Pollutant: Not specifically classified, but precautions advised
Special Precautions: Secure upright containment, block humidity, clear corrosive labeling; emergency contact details visible
TSCA: Listed
REACH: Registration may be required in the European Union for import or commercial use
OSHA Status: Regulated as a corrosive material; hazard communication standards apply
SARA Title III (Sections 302/304/313): Not listed as extremely hazardous, but workplace controls are mandatory
Other International Regulations: Review country-specific chemical control laws, workplace exposure and environmental codes before import, use, or export
