WHMIS (p-Benzoquinone)

Workplace Hazardous Materials Information System

WHMIS 2015 classification - Note to reader
Update: 2016-02-17

  • Combustible dusts - See comments below1
  • Acute toxicity - oral - Category 32 3 4 5
  • Skin corrosion/irritation - Category 25 6
  • Serious eye damage/eye irritation - Category 22 4 5 7
  • Skin sensitization - Category 1A4 5 8

  • WHMIS 2015 pictogram : Skull and crossbones

  • WHMIS 2015 pictogram : Exclamation mark


Toxic if swallowed (H301)
Causes skin irritation (H315)
Causes serious eye irritation (H319)
May cause allergic skin reaction (H317)

Ingredient disclosure

Comments: This product could belong to the hazard class "Combustible dust", based on various factors related to the combustibility and explosiveness of its dust, including composition, shape and size of the particles.


  • ▲1.  United States. National Ocean Service. Office of Response and Restoration., Computer aided management of emergency operations chemicals (CAMEO chemicals) : online database of hazardous materials. USA : National Oceanic and Atmospheric Administration.   http://cameochemicals.noaa.gov/search/simple
  • ▲2.  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
  • ▲3.  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
  • ▲4.  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
  • ▲5.  Bingham, E., Cohrssen, B. et Powell, C.H., Patty's toxicology. A Wiley-Interscience publication. New York (Toronto) : John Wiley. (2001-). [RM-214008]   http://www3.interscience.wiley.com (http://www3.interscience.wiley.com/cgi-bin/mrwhome/104554795/HOME)
  • ▲6.  IARC Working Group on the Evaluation of Carcinogenic Risks of Chemical to Man, Some fumigants, the herbicides 2,4-D and 2,4,5-T, chlorinated dibenzodioxins and miscellaneous industrial chemicals. IARC monographs on the evaluation of carcinogenic risks of chemical to man, Vol. 15. Lyon : International Agency for Research on Cancer. (1977).   https://monographs.iarc.fr/wp-content/uploads/2018/06/mono15.pdf
  • ▲7.  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. 2, 4éme éd. Springfield, ILL : Charles C. Thomas. (1993). [RM-515030]
  • ▲8.  Basketter, D.A. et Scholes, E.W., «Comparison of the local lymph node assay with the guinea-pig maximization test for the detection of a range of contact allergens.» Food and chemical toxicology. Vol. 30, no. 1, p. 65-69. (Jan. 1992). [AP-000956]

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