WHMIS (Mercuric oxide)

Workplace Hazardous Materials Information System

WHMIS 2015 classification - Note to reader

• Acute toxicity - oral - Category 21

• Specific target organ toxicity - repeated exposure - Category 12 3 4

Danger

Fatal if swallowed (H300)
Causes damage to organs through prolonged or repeated exposure (H372)

Ingredient disclosure

Comments: Due to the lack of data, classification regarding specific organ toxicity - repeated exposure (H372) was established by analogy to inorganic mercury compounds (Mercury II chloride).

References

• ▲1.  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
• ▲2.  Lauwerys, R. et al., Toxicologie industrielle et intoxications professionnelles. 5ème éd. Issy-les-Moulineaux Cedex : Elsevier Masson SAS. (2007). [RM-514015]
• ▲3.  Agency for Toxic Substances and Disease Registry, Toxicological profile for mercury. Atlanta [GA] : ATSDR. (1999).   http://www.atsdr.cdc.gov/ http://www.atsdr.cdc.gov/ToxProfiles/tp46.pdf
• ▲4.  International Program on Chemical Safety, Elemental Mercury and Inorganic Mercury Compounds: Human Health Aspects. Concise International Chemical Assessment. Genève : World Health Organization. (2003). CICAD 50.   http://www.inchem.org/documents/cicads/cicads/cicad50.htm

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