Carbon Nanotube Safety Data Sheet (SDS / MSDS)

When working with carbon nanotubes, proper safety documentation and handling protocols protect researchers, workers, and the environment. This page provides safety guidance for CNTs and links to our Safety Data Sheet for download.

Carbon Nanotube Safety Overview

Carbon nanotubes are engineered nanomaterials classified under CAS numbers 308068-56-6 (SWNT) and 308068-56-6 / 7440-44-0 (MWNT). Their high aspect ratio and fiber-like geometry require specific handling precautions, particularly when working with dry powders where airborne dispersion is possible.

Recommended Personal Protective Equipment (PPE)

The following PPE is recommended when handling dry carbon nanotube powders in laboratory or manufacturing settings:

• Respiratory protection: NIOSH-approved N95 or P100 half-face respirator for routine handling; powered air-purifying respirator (PAPR) for high-exposure operations
• Eye protection: Safety glasses with side shields; chemical splash goggles for wet processing
• Hand protection: Nitrile gloves (minimum 4 mil thickness)
• Body protection: Lab coat or disposable Tyvek suit; closed-toe shoes

Safe Handling Practices

• Perform all dry CNT handling in a certified fume hood or under local exhaust ventilation
• Minimize dust generation — wet dispersion significantly reduces inhalation risk
• Use pre-weighed aliquots when possible to reduce repeated handling of bulk powders
• Store CNTs in sealed containers in a cool, dry location away from oxidizing agents
• Never use compressed air to clean up CNT spills — use a HEPA vacuum or wet wipe method
• Wash hands thoroughly after handling, even when gloves were worn

Spill and Accidental Release

For small spills of dry CNT powder: dampen with water or isopropanol before cleanup to prevent re-aerosolization. Collect in a sealed container and dispose as hazardous nanomaterial waste per your institution’s or local regulations. For large spills or respiratory exposure incidents, consult your institution’s EHS office and refer to the full SDS.

Disposal

Carbon nanotube waste should be disposed of in accordance with applicable federal, state, and local regulations for engineered nanomaterials. Many institutions treat CNT waste as hazardous — check with your EHS office. Do not dispose of CNT materials in standard solid waste without verification.

Regulatory Information

Carbon nanotubes are subject to TSCA (Toxic Substances Control Act) reporting requirements in the United States. OSHA Hazard Communication Standard (29 CFR 1910.1200) applies. CNTs are listed under REACH regulation in the EU. Always follow your jurisdiction’s applicable regulations for engineered nanomaterials.