MSDS for Molybdenum Acetylacetonate
1. Identification
Product Name: Molybdenum Acetylacetonate
Synonyms: Molybdenum(III) acetylacetonate, Mo(acac)3
CAS Number: 14284-93-6
Manufacturer: [Insert supplier name here]
Recommended Use: Laboratory chemicals, research and development
Restrictions on Use: Not for food, drug, or household use
Contact Information: [Supplier phone and address]
2. Hazard Identification
Classification: Substance not classified as hazardous according to GHS criteria
Main Hazards: Can irritate eyes, skin, and respiratory tract. Avoid dust, ingestion, and inhalation. Dust may cause mechanical irritation. Combustible powder at high temperatures.
Signal Word: Warning
Pictograms: None required under GHS
Precautionary Statements: Avoid breathing dust, wash hands after handling, use only with adequate ventilation, keep away from ignition sources.
Hazard Statements: May cause slight irritation to skin and eyes. Prolonged or repeated contact may dry skin.
3. Composition / Information on Ingredients
Chemical Name: Molybdenum Acetylacetonate
CAS Number: 14284-93-6
Formula: C15H21MoO6
EC Number: 238-192-0
Concentration: 99%
Impurities/Additives: Minor impurities possible due to manufacturing process; do not contribute to hazard classification
4. First Aid Measures
Inhalation: Remove to fresh air. Get medical attention if symptoms persist. Monitor for difficulty breathing.
Skin Contact: Wash affected area with soap and water. Remove contaminated clothing. Seek medical advice if irritation continues.
Eye Contact: Rinse carefully with water for at least 15 minutes, keeping eyelids open. Seek immediate medical help.
Ingestion: Rinse mouth thoroughly. Do not induce vomiting. Seek medical attention if feeling unwell.
Acute/Delayed Symptoms: May cause irritation to mucous membranes, skin, and eyes. No known delayed effects documented in available literature.
5. Fire-Fighting Measures
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, or water spray.
Unsuitable Extinguishing Media: None identified. Avoid full water jet, as it may spread spilled powder.
Special Hazards: On combustion, can emit acrid smoke, carbon oxides, and molybdenum oxides. May decompose at high heat.
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear.
Firefighting Instructions: Move containers from fire area if it is safe. Avoid inhalation of combustion fumes. Use water spray to keep fire-exposed containers cool.
6. Accidental Release Measures
Personal Precautions: Evacuate unnecessary personnel. Wear protective respirator, safety goggles, gloves, and lab coat.
Environmental Precautions: Prevent entry into sewers, drains, or waterways. Report releases as required.
Cleanup Methods: Collect spill with non-sparking tools; sweep up or use vacuum fitted with HEPA filter. Place into secure, labeled container for disposal. Use wet wiping for residues.
Other Precautions: Ventilate area. Avoid raising dust. Wash spill site after material pickup is complete.
7. Handling and Storage
Handling: Avoid contact with skin, eyes, and clothing. Prevent dust formation. Use in fume hood if possible. Do not eat, drink, or smoke in work areas.
Storage: Keep container tightly closed in a cool, dry, ventilated area. Store away from direct sunlight, oxidizers, and ignition sources. Maintain temperature stability.
Incompatible Materials: Strong oxidants or strong acids
Hygiene Measures: Wash hands thoroughly after use. Remove contaminated clothing and wash before reuse.
8. Exposure Controls and Personal Protection
Control Parameters: No occupational exposure limit established for this compound; monitor for dust.
Engineering Controls: Use local exhaust ventilation; operate process in closed systems if possible.
Personal Protection: Wear chemical-resistant gloves (nitrile/pvc), safety goggles, and lab coat or overalls. Use approved respirator if dust or fumes are generated. Ensure eyewash stations and safety showers are nearby.
Environmental Controls: Prevent material from entering soil or drains. Use suitable containment methods.
9. Physical and Chemical Properties
Appearance: Fine green or blue-green crystalline powder
Odor: Mild, organic
pH: Not applicable (insoluble in water)
Melting Point: 220–230°C (decomposes)
Boiling Point: Not determined
Flash Point: Not determined; material may be combustible at high temperature
Solubility: Slightly soluble in water; soluble in organic solvents such as ethanol, acetone, and chloroform
Vapor Pressure: Not available
Density: 1.5–1.7 g/cm3
Partition Coefficient (n-octanol/water): Not determined
Vapor Density: Not applicable
Auto-Ignition Temperature: Not established
Decomposition Temperature: Above 230°C
Evaporation Rate: Not available
10. Stability and Reactivity
Chemical Stability: Stable under normal temperatures and pressures.
Reactivity: No dangerous reactions under normal conditions.
Conditions to Avoid: Excessive heat, open flames, incompatible materials, exposure to moisture
Incompatible Materials: Strong oxidizing agents, acids, halogens
Hazardous Decomposition Products: Carbon oxides, molybdenum oxides, potentially acrid smoke
Polymerization: Will not occur under recommended storage and handling
11. Toxicological Information
Likely Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: Data limited for this compound; molybdenum compounds generally low in acute toxicity
Symptoms: May cause irritation of respiratory tract, eyes, and skin. Cough, redness, discomfort on contact.
Chronic Effects: Repeated exposure to high concentrations may lead to effects on liver or kidneys, based on observations in animal studies
Carcinogenicity: Not listed as carcinogenic by IARC, NTP, or OSHA
Mutagenicity: No data indicating mutagenic effects
Reproductive Toxicity: No evidence available from current studies
Target Organs: Respiratory system, skin, eyes
12. Ecological Information
Ecotoxicity: Information is limited; molybdenum is an essential trace element at low concentrations but can be toxic to aquatic life at higher concentrations.
Mobility in Soil: Mobile in soil contaminated with organic solvents; low water solubility limits spread
Persistence and Degradability: Not readily biodegradable
Bioaccumulation Potential: Not expected to bioaccumulate significantly
Other Adverse Effects: Avoid uncontrolled release to the environment, especially groundwater and surface water
13. Disposal Considerations
Disposal Methods: Dispose of in accordance with federal, state, and local environmental control regulations. Use a licensed hazardous waste disposal service.
Contaminated Packaging: Use clean, sealed, labeled containers for contaminated packaging; recycle where possible or dispose as hazardous waste.
Special Precautions: Avoid release to environment. Do not flush into water systems or drainage systems. Follow local authority advice.
14. Transport Information
UN Number: Not regulated for transport
Proper Shipping Name: Not regulated
Transport Hazard Class: Not applicable
Packing Group: Not specified
Labels: None required under ADR, IATA, or IMDG
Special Precautions for Transport: Protect from physical damage. Prevent container leakage. Transport in compliance with all appropriate local and national regulations.
15. Regulatory Information
TSCA (USA): Listed
REACH (EU): Exempted from registration, used only as scientific research
OSHA HazCom (USA): Does not meet Hazard Communication Standard classification criteria
SARA Title III: Not a reportable substance under Sections 302, 304, or 313
Canada WHMIS: Not classified as hazardous
California Proposition 65: Not listed
Other Regulatory Notes: Users must observe all applicable national and international regulations. The regulatory status can change; always consult local guidelines.
