Material Safety Data Sheet – Molybdenum Nitride

Identification

Product Name: Molybdenum Nitride
Chemical Formula: Mo2N, MoN
Synonyms: Molybdenum mononitride, Molybdenum dinitride
CAS Number: 12033-19-3
Recommended Use: Laboratory chemical, catalyst, advanced ceramics
Manufacturer/Supplier: Supplier information should be included here based on the source
Contact for Emergency: Emergency phone number for manufacturer or National Poison Control Center

Hazard Identification

Classification: Not classified as hazardous under GHS regulations; dust may cause irritation
Signal Word: No signal word required under most jurisdictions
Hazard Statements: Dust may cause eye, skin, and respiratory irritation; not expected to be acutely toxic
Precautionary Statements: Use personal protective equipment; maintain adequate ventilation; avoid breathing dust
Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Emergency Overview: Grey to black solid or powder; presents physical hazard in large quantities if airborne dust accumulates

Composition / Information on Ingredients

Chemical Name: Molybdenum Nitride
CAS Number: 12033-19-3
EC Number: 234-722-4
Concentration: 100% (pure substance or main component)
Impurities: May contain trace levels of metallic molybdenum or oxides, depending on synthesis method

First Aid Measures

Inhalation: Remove individual to fresh air immediately; seek medical attention if persistent coughing, wheezing, or irritation occurs
Skin Contact: Wash skin thoroughly with soap and water; remove contaminated clothing; seek medical attention if redness or irritation persists
Eye Contact: Flush eyes generously with clean water for at least 15 minutes; hold eyelids apart; seek prompt medical attention
Ingestion: Rinse mouth with water; do not induce vomiting unless instructed by medical personnel; seek medical assistance for any symptoms
Medical Attention: Show this sheet to the physician; symptomatic and supportive treatment only

Fire-Fighting Measures

Suitable Extinguishing Media: Use dry powder, sand, or carbon dioxide; avoid water if material is in powdered form due to dust cloud explosion risk
Special Hazards: Molybdenum nitride is not flammable under normal conditions, but airborne dust can be explosive
Protective Equipment for Firefighters: Full protective gear including self-contained breathing apparatus recommended
Hazardous Combustion Products: Nitrogen oxides, molybdenum oxides; avoid inhalation of smoke fumes
Firefighting Procedures: Isolate area; use proper ventilation

Accidental Release Measures

Personal Precautions: Evacuate non-essential personnel; use dust masks and gloves
Environmental Precautions: Prevent entry into drains, sewers, and waterways
Cleanup Methods: Sweep up spill carefully, avoid raising dust; use HEPA vacuum if available; collect spilled material in properly labeled containers for disposal
Decontamination: Wash spill site thoroughly after cleanup
Protective Measures: Wear protective clothing, gloves, and eye protection during cleanup

Handling and Storage

Safe Handling: Avoid creating dust; handle in well-ventilated areas; use local exhaust or point ventilation
Storage Requirements: Keep container tightly closed; store in a cool, dry, well-ventilated space
Incompatible Materials: Strong oxidizers, strong acids; avoid moisture
Hygiene Practices: Wash hands after handling; do not eat, drink, or smoke in work areas
Storage Containers: Use containers made of compatible materials; label containers clearly

Exposure Controls and Personal Protection

Occupational Exposure Limits: No established limit for molybdenum nitride; for molybdenum compounds as dust, OSHA PEL: 15 mg/m³ (total dust), 5 mg/m³ (respirable); ACGIH TLV for molybdenum insoluble compounds: 10 mg/m³ (inhalable)
Engineering Controls: Use local exhaust ventilation or process enclosures; maintain airborne levels below exposure limits
Personal Protective Equipment: Dust mask or respirator, impervious gloves, lab coat or protective clothing, chemical safety goggles
Environmental Exposure Controls: Prevent spillage and releases to the environment; use proper waste containers

Physical and Chemical Properties

Appearance: Grey to black powder or crystalline solid
Odor: Odorless
pH: Not applicable
Melting Point: Decomposes above 1700°C (varies by compound and conditions)
Boiling Point: Not applicable (decomposes before boiling)
Density: Approx. 9.2–9.4 g/cm³
Solubility: Insoluble in water; insoluble in common organic solvents
Vapor Pressure: Not applicable
Flash Point: Not flammable
Partition Coefficient (n-octanol/water): Not applicable
Evaporation Rate: Not applicable
Other Information: Forms dust easily when handled in powder form

Stability and Reactivity

Chemical Stability: Stable under recommended handling and storage conditions
Conditions to Avoid: High humidity; temperature extremes; exposure to moisture
Incompatible Materials: Strong oxidizers, strong acids, halogens
Hazardous Decomposition Products: On decomposition, may release nitrogen oxides and molybdenum oxides
Polymerization: No hazardous polymerization anticipated

Toxicological Information

Acute Toxicity: No acute toxicity data for molybdenum nitride; extrapolation from related molybdenum compounds indicates low toxicity at typical exposure levels
Routes of Exposure: Inhalation, ingestion, skin, eyes
Inhalation Effects: Dust may cause respiratory tract irritation; coughing, sneezing, shortness of breath in sensitive individuals
Skin Effects: Prolonged or repeated exposure may cause irritation
Eye Effects: Can cause mechanical irritation, redness, watering
Chronic Effects: Excessive, long-term exposure to molybdenum compounds may impact liver and kidney function; these effects are rare
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, or OSHA
Mutagenicity and Reproductive Toxicity: No evidence to suggest mutagenic or teratogenic effects

Ecological Information

Ecotoxicity: Limited data; molybdenum compounds can be toxic to aquatic organisms at high concentrations
Persistence and Degradability: Inorganic compound, not expected to degrade; may persist in environment
Bioaccumulation Potential: Low; molybdenum ions do not readily bioaccumulate in flora or fauna
Mobility in Soil: Limited mobility; insoluble in water; remains in solid phase
Other Adverse Effects: Avoid uncontrolled discharge to the environment due to potential long-term effects in aquatic systems

Disposal Considerations

Disposal Methods: Dispose of in accordance with national, regional, and local environmental regulations
Contaminated Packaging: Rinse containers, dispose as hazardous waste if not reusable
Sewage Disposal: Do not dispose into drains or sewers
Recycling / Reuse: If possible, recover and reuse uncontaminated product
Special Precautions: Inform waste operator of nature and hazards of waste

Transport Information

UN Number: No specific UN number assigned
Proper Shipping Name: Not regulated as a hazardous material by DOT, IATA, or IMDG
Transport Hazard Class: Not designated
Packing Group: Not applicable
Marine Pollutant: Not identified as marine pollutant
Special Transport Rules: Secure containers against shifting; avoid release of powder during transport

Regulatory Information

TSCA Status: Listed
REACH Status: Pre-registered or registered
SARA Title III Section 313: Not subject
California Proposition 65: Not listed
DSL/NDSL (Canada): On Canadian DSL list
OSHA Regulatory Status: Not classified as hazardous under OSHA regulations
Other Regulations: Follow all national, state, and local laws regarding handling and disposal