Material Safety Data Sheet for Vanadium Oxysulfate

Identification

Product Name: Vanadium Oxysulfate
Chemical Formula: VOSO₄
Synonyms: Vanadyl Sulfate, Vanadyl Oxysulfate, Vanadyl Sulphate Monohydrate
CAS Number: 27774-13-6
Recommended Use: Catalyst in organic synthesis, manufacturing of ceramics and pigments, laboratory reagent
Supplier Identification: Supplier details provided on container label
Emergency Phone: Refer to local supplier or poison control center

Hazard Identification

Hazard Classification: Acute toxicity (oral, dermal, inhalation), eye irritation, environmental hazard (aquatic toxicity)
Signal Word: Danger
Hazard Statements: Harmful if swallowed. Causes serious eye irritation. May cause respiratory irritation. Very toxic to aquatic life.
Pictograms: Skull and crossbones, exclamation mark, environment
Precautionary Statements: Avoid breathing dust or fumes. Wear protective gloves, clothing, eye, and face protection. Wash thoroughly after handling. Avoid release to the environment.

Composition / Information on Ingredients

Chemical Name: Vanadium Oxysulfate (Vanadyl Sulfate Monohydrate)
CAS Number: 27774-13-6
Concentration: 97% (typical), impurities below relevant cutoffs
Other Components: Trace sodium, potassium, and water as hydrated form
Impurity Levels: Control through batch analysis and supplier quality assurance

First Aid Measures

Inhalation: Move person to fresh air. Seek medical advice if symptoms develop. If breathing stops, provide artificial respiration.
Skin Contact: Remove contaminated clothing. Rinse skin with plenty of running water for at least 15 minutes. Get medical attention if irritation persists.
Eye Contact: Rinse with water for several minutes, lifting eyelids to ensure thorough cleaning. Remove contact lenses. Keep rinsing. Seek medical care.
Ingestion: Rinse mouth. Do not induce vomiting. Give water to drink, if conscious. Get medical attention immediately.
Symptoms to Note: Nausea, vomiting, headache, respiratory discomfort, reddening or blistering of skin or eyes. Risk of delayed symptoms.

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical powder, CO₂, foam, water spray (for larger fires).
Unsuitable Extinguishing Media: Avoid direct use of water jets.
Specific Hazards: Product does not burn, but gives off toxic sulfur oxides and vanadium fumes when heated strongly.
Protective Equipment: Firefighters should use self-contained breathing apparatus and chemical protective clothing.
Advice for Firefighters: Move containers away from fire area if safe. Cool exposed containers with water spray. Prevent runoff from entering water sources.

Accidental Release Measures

Personal Precautions: Evacuate all non-essential personnel. Avoid breathing dust or fumes. Wear appropriate PPE (respirator, gloves, goggles).
Environmental Precautions: Prevent entry into sewers, waterways, and soil. Notify authorities in case of large spills.
Cleanup Methods: Sweep up spills avoiding dust creation. Use inert absorbent if mixed with liquid. Collect in suitable containers for disposal. Ventilate affected area.
Decontamination: Wash spill site after material cleanup is complete.

Handling and Storage

Handling: Use in well-ventilated areas, local exhaust recommended. Avoid creating dust. Do not eat, drink, or smoke during use. Wash hands after handling.
Storage Conditions: Keep containers tightly closed in a cool, dry, well-ventilated place. Protect from moisture and incompatible materials (acids, reducing agents).
Packaging Materials: Store in original, corrosion-resistant containers or tightly closed polyethylene drums.
Other Considerations: Label all containers clearly. Limit storage quantities in laboratory and workplace settings.

Exposure Controls and Personal Protection

Occupational Exposure Limits: Vanadium (dust/fume) TWA—0.05 mg/m³ (as V, OSHA); local, national guidelines apply.
Engineering Controls: Use chemical fume hood or local exhaust. Ensure eyewash stations and safety showers are nearby.
Personal Protection Equipment: Respiratory protection (NIOSH-approved respirator if exposure limits exceeded), chemical-resistant gloves (nitrile, PVC), lab coat or long sleeves, safety goggles or face shield.
Hygiene Measures: Do not eat, drink, or smoke in areas with chemical use. Remove contaminated clothing and wash before reuse.

Physical and Chemical Properties

Appearance: Blue-green crystalline powder
Odor: Odorless
pH (1% solution): 2–3
Melting Point: Decomposes above 700°C (no distinct melting)
Boiling Point: Not applicable (decomposes)
Solubility: Easily soluble in water; negligible in ethanol
Vapor Pressure: Not applicable
Density: 2.3–2.5 g/cm³
Other Properties: Hygroscopic, stable under recommended conditions

Stability and Reactivity

Chemical Stability: Stable under normal temperatures and dry conditions
Possible Reactions: Reacts with strong acids, reducing agents
Conditions to Avoid: Moisture, heat, exposure to acidic or basic environments
Hazardous Decomposition Products: Sulfur oxides, vanadium oxides, toxic fumes on significant heating
Polymerization: Does not occur under standard conditions

Toxicological Information

Acute Toxicity: Harmful by ingestion, inhalation, and skin contact. LD₅₀ (oral, rat): 39 mg/kg (as VOSO₄).
Chronic Effects: Inhalation may cause lung and airway irritation, coughing, headaches, metallic taste.
Local Effects: Can cause skin and eye irritation.
Carcinogenicity: Not listed as carcinogen by IARC, NTP, OSHA.
Additional Information: Chronic exposure linked with vanadium accumulation, potential for kidney, liver, and pulmonary impacts.

Ecological Information

Aquatic Toxicity: Very toxic to aquatic organisms; risk of long-term hazardous effects in waterways
Environmental Fate: Mobile in soil if released, persistent in sediments, bioaccumulation unlikely due to low lipid solubility
Degradation: Not readily biodegradable; remains in the environment, may transform slowly chemically
Soil Impact: Potentially harmful to soil microflora with repeated release

Disposal Considerations

Waste Methods: Dispose through licensed hazardous waste handler. Follow local, regional, and national regulations.
Container Cleanup: Triple rinse then puncture and manage as hazardous waste.
Disposal Precautions: Never discharge to drains, surface water, or unauthorized waste channels.
Recover/Recycle: Consider recovery or recycling if feasible under regulatory approval and technical controls.

Transport Information

UN Number: 2865
Transport Name: Vanadium Compound, N.O.S. (Vanadium Oxysulfate)
Hazard Classification: 6.1 (toxic substances)
Packing Group: III
Labels: Toxic
Environmental Hazards: Marine pollutant
Special Precautions: Protect from humidity. Secure against physical damage. Keep away from foods, feeds, and water sources.
Regulatory Notes: Comply with international transport codes (ADR/RID, IMDG, IATA).

Regulatory Information

Labelling: GHS/CLP compliant hazard and precautionary labeling required
TSCA: Listed
REACH Status: Registered compound within ECHA inventory
OSHA: Hazardous chemical per Hazard Communication Standard
SARA Title III: Reportable under certain conditions
Other Regulations: Local environmental and occupational exposure rules may apply based on region and application
Restrictions: Professional/industrial use only. Not for pharmaceutical or food applications.