N-methylpyrrolidone Safety NFPA Hazard ratings for NMP are: Health — 2; Flammability — 2; Reactivity — 0; Special — NA. NMP is a combustible liquid with a flash point of 91 °C. Explosive limits are approximately 1-10% vapor in air. NMP is not caustic. NMP is chemically and thermally stable. NMP may react with oxidizing reagents and strong acids. NMP is a skin and eye irritant. Primary exposure routes are inhalation, skin absorption, and ingestion. Personal protection equipment is required. Butyl rubber, Viton® , or equivalent gloves, aprons, and boots should be worn to prevent skin contact. Goggles or face shields are required to prevent eye contact. Respirators may be required, depending on the application. On June 25, 1999 the Office of Environmental Health Hazard Assessment (OEHHA) of the California EPA issued a notice of intent to list NMP under Proposition 65 (22 CCR Section 12306(l) as a chemical known to cause developmental and reproductive toxicity. The address and telephone number for OEHHA's Proposition 65 Implementation Office can be found on the Internet at http://www.oehha.org. State Information | Glossary | Conversion Checklist | Comments Home | Process Advisor | Alternatives | Links | Search All SAGE material, Copyright© 1992, Research Triangle Institute Last Update: 07 May 2001 sage@rti.org http://clean.rti.org/alt.cfm?id=nmp&cat=sa