MSDS for Cupric Sulfide

Identification

Product Name: Cupric Sulfide
Synonyms: Copper(II) sulfide, CuS
Manufacturer: Contact supplier for specific details
Recommended Use: Laboratory chemical, industrial processes
CAS Number: 1317-40-4
Emergency Phone: Contact local emergency services or Poison Control
Address: Use company or facility address for reference

Hazard Identification

Classification: Acute toxicity, Category 4; Hazardous to aquatic life, Chronic Category 3
Signal Word: Warning
Hazard Statements: Harmful if swallowed, Harmful to aquatic life with long lasting effects
Pictograms: Exclamation mark, Environment symbol
Precautionary Statements: Avoid breathing dust, Avoid release to environment, Wash hands thoroughly after handling, Wear protective gloves and safety goggles
Potential Health Effects: Respiratory irritation, eye and skin irritation, gastrointestinal discomfort
Routes of Exposure: Inhalation, skin contact, ingestion, eye contact

Composition / Information on Ingredients

Component: Cupric Sulfide
Chemical Formula: CuS
Concentration: 100%
CAS Number: 1317-40-4
Molecular Weight: 95.61 g/mol
Impurities and Stabilizers: None reported in pure materials; may differ by supplier, so laboratory analysis can be useful if purity impacts safety

First Aid Measures

Inhalation: Move affected individual to fresh air without delay, keep at rest in comfortable position, seek medical attention if symptoms develop or persist
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with plenty of water and soap, seek care for persistent irritation
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, consult a physician for continued irritation
Ingestion: Rinse mouth, do not induce vomiting, give water to drink if person is conscious, obtain immediate medical assistance
Most Important Symptoms / Effects: Cough, respiratory discomfort, red or irritated skin, eye redness or soreness, abdominal cramps or nausea after swallowing

Fire-Fighting Measures

Suitable Extinguishing Media: Use dry chemical, carbon dioxide, foam, or water spray, avoid using direct water jets on powder fires
Hazards from Combustion: Sulfur oxides, copper oxides can be released under intense heat
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, full protective suit, remain upwind to avoid fumes
Specific Methods: Move containers from fire area if safe, dike firefighting water for later disposal, use standard tactics to limit run-off contamination
Special Precautions: Dust may cause explosion risks in confined areas, allow trained fire crews to handle large fires

Accidental Release Measures

Personal Precautions: Wear respirator if dust forms, use gloves and goggles, remove all non-essential personnel from area
Environmental Precautions: Keep material out of sewers, soil, and waterways, notify local authorities in event of significant spillage
Methods for Clean-Up: Collect spilled powder using a method that minimizes dust generation (damp cloth, HEPA vacuum), place in labeled container for disposal, ventilate area
Decontamination: Wash affected area with plenty of water and soap, mop up all residues, ventilate confined areas well

Handling and Storage

Handling Precautions: Minimize dust generation, avoid inhalation, use only in well-ventilated locations, wash hands before eating or drinking
Storage Conditions: Store in tightly sealed containers, keep away from moisture, strong acids, and oxidizers, temperature range: ambient room temperature advised, avoid storing with food or feedstock
Special Notes: Regularly inspect storage container condition, restrict access to trained persons, keep away from incompatible substances

Exposure Controls and Personal Protection

Exposure Limits: ACGIH TLV for copper (fume, dust, as Cu): 1 mg/m³ (TWA); NIOSH REL: 1 mg/m³ (TWA)
Engineering Controls: Use local exhaust or general room ventilation to prevent exposure
Personal Protective Equipment: NIOSH-approved respirator for dust, chemical-resistant gloves, safety goggles, long-sleeved protective clothing
Hygiene Measures: Clean hands thoroughly after use, do not eat or drink while handling, launder contaminated clothing before reuse
Environmental Controls: Prevent dispersal into environment, monitor air quality in work areas

Physical and Chemical Properties

Physical State: Solid
Appearance: Black powder or crystalline substance
Odor: Odorless
pH: Not applicable in solid form
Melting Point: 500°C (decomposes)
Boiling Point: Decomposes before boiling
Flash Point: Not combustible
Solubility: Insoluble in water, insoluble in most organic solvents
Density: 4.6 g/cm³
Vapor Pressure: Negligible at room temperature
Partition Coefficient: Not applicable
Other Properties: Stable under ordinary conditions, produces toxic fumes if heated strongly

Stability and Reactivity

Chemical Stability: Stable under normal storage and handling conditions
Reactivity: Reacts with strong acids, releasing hydrogen sulfide gas
Hazardous Reactions: Avoid contact with oxidizing agents, moisture, strong acids
Decomposition Products: Sulfur oxides, copper oxides, hydrogen sulfide in contact with acid
Conditions to Avoid: High heat, prolonged exposure to moisture, acidic environments

Toxicological Information

Routes of Exposure: Inhalation, ingestion, dermal and ocular contact
Acute Toxicity: May cause moderate toxicity if ingested; symptoms can include abdominal pain, vomiting, or diarrhea
Chronic Effects: Prolonged exposure may affect liver and kidney function, possible risk of blood abnormalities
Carcinogenicity: Not listed by IARC, NTP, or OSHA as carcinogen
Other Data: Dust can aggravate existing respiratory, kidney, or liver conditions; copper compounds have reported effects at higher doses
Sensitization: No reliable data indicating allergic reaction potential in routine use

Ecological Information

Ecotoxicity: Harmful to aquatic organisms, possible long-term effects in aquatic systems
Persistence and Degradability: Inorganic compound, not expected to degrade; remains in environment
Bioaccumulative Potential: Copper ions can accumulate in aquatic life, causing possible toxic effects
Mobility in Soil: Limited mobility in soil due to low solubility
Other Adverse Effects: Release should be avoided to protect surface water and soil health

Disposal Considerations

Waste Disposal: Dispose in accordance with local, regional, and national regulations as hazardous waste
Methods: Deliver to authorized hazardous waste facility, avoid release to environment
Contaminated Packaging: Rinse before recycling or dispose as hazardous material
Precautions: Handle residues in line with workplace safety, keep materials labeled and separated from general waste streams

Transport Information

UN Number: Not classified as dangerous goods under UN model regulations
Transport Hazard Class: Not regulated for transport by ground, air, or sea in most regions
Packing Group: Not assigned
Marine Pollutant: Not listed, but due to aquatic toxicity, release to water during transport should be avoided
Special Transport Notes: Keep containers upright, secure to prevent damage, avoid transport with acids and oxidizers

Regulatory Information

OSHA: Hazardous chemical under OSHA Hazard Communication Standard
TSCA: Listed on the US Toxic Substances Control Act inventory
REACH: Registered and compliant with European Chemical Agency requirements
SARA: Not subject to SARA Title III, Section 313 reporting for copper sulfide; copper compounds may trigger state or federal reporting due to other regulations
Right To Know: Listed in some US state regulations (Pennsylvania, New Jersey, Massachusetts)
Other Labeling: GHS compliant labeling required in all workplaces