WHMIS (Methylhydrazine)

Workplace Hazardous Materials Information System

WHMIS 2015 classification - Note to reader

• Flammable liquids - Category 21
• Flash point = -8 °C closed cup (non reported method) and boiling point = 88 °C

• Acute toxicity - oral - Category 22 3

• Acute toxicity - dermal - Category 23 4

• Acute toxicity - inhalation - Category 13 4

• Skin corrosion/irritation - Category 15

• Serious eye damage/eye irritation - Category 15 6

• Carcinogenicity - Category 25 7

• Specific target organ toxicity - single exposure - Category 15 7

• Specific target organ toxicity - repeated exposure - Category 15

• Health hazards not otherwise classified (corrosion) - Category 1

Danger

Highly flammable liquid and vapour (H225)
Fatal if swallowed (H300)
Fatal in contact with skin (H310)
Fatal if inhaled (H330)
Causes severe skin burns and eye damage (H314)
Suspected of causing cancer (H351)
Causes damage to organs (H370)
Causes damage to organs through prolonged or repeated exposure (H372)
Causes severe damage to the respiratory tract

Ingredient disclosure

Comments8 9 : Under certain conditions, this material can self-heat by reaction with air and without energy supply.

References

• ▲1.  National Fire Protection Association, Fire protection guide to hazardous materials. 14th ed. Quincy, Mass. : NFPA. (2010). [RR-334001]
• ▲2.  ECHA (European Chemicals Agency) , Information on chemicals (REACH)/ECHA chemicals database. Helsinki, Finland.   http://echa.europa.eu/information-on-chemicals/registered-substances
  https://chem.echa.europa.eu/
• ▲3.  Centre canadien d'hygiène et de sécurité au travail, CHEMINFO, Hamilton, Ont. : Canadian Centre for Occupational Health and Safety   http://ccinfoweb.ccohs.ca/cheminfo/search.html
• ▲4.  National Institute for Occupational Safety and Health, RTECS (Registry of Toxic Effects of Chemical Substances). Hamilton (Ont) : Canadian Centre for Occupational Health and Safety.   http://ccinfoweb.ccohs.ca/rtecs/search.html
• ▲5.  American Conference of Governmental Industrial Hygienists, Documentation of the threshold limit values and biological exposure indices / Documentation of TLV's and BEI's. 7th ed. Cincinnati, Ohio : ACGIH. (2001-). Publication #0100Doc. [RM-514008]   http://www.acgih.org
• ▲6.  Grant, W.M. et Schuman, J.S., Toxicology of the eye : effects on the eyes and visual systems from chemicals, drugs, metals and minerals, plants, toxins and venoms; also, systemic side effects from eye medications. Vol. 1, 4th ed. Springfield (ILL.) : Charles C. Thomas. (1993). [RM-515030]
• ▲7.  National Academy of Sciences, Acute Exposure Guideline Levels for Selected Airborne Chemicals volume 1. Washington, DC. NATIONAL ACADEMY PRESS. (2000).   Monomethyl hydrazine: http://www.ncbi.nlm.nih.gov/books/NBK222412/ Dimethyl hydrazine: http://www.epa.gov/oppt/aegl/pubs/tsd1.pdf Arsine: http://www.epa.gov/oppt/aegl/pubs/tsd2.pdf Aniline:
  http://www.epa.gov/oppt/aegl/pubs/tsd5.pdf
• ▲8.  Dutch Institute for the Working Environment et Dutch Chemical Industry Association, Chemical safety sheets : working safely with hazardous chemicals. Netherlands : Kluwer Academic Publishers. (1991). [RR-015010]
• ▲9.  Vincoli, J.W., Risk management for hazardous chemicals : G-Z. Vol. 2. Boca Raton : Lewis Publishers. (1997). [RM-515112]

The [number] refers to the Information SST database of the CNESST Documentation Center.