WHMIS (Cesium)

Workplace Hazardous Materials Information System

WHMIS 2015 classification - Note to reader

• Pyrophoric solids - Category 11 2 3 4

• Substances which, in contact with water, emit flammable gases - Category 15 6

• Skin corrosion/irritation - Category 1

• Serious eye damage/eye irritation - Category 1

• Specific target organ toxicity - single exposure (respiratory tract irritation) - Category 3 - Respiratory tract irritation

• Physical hazards not otherwise classified (exclamation mark) - Category 11 2 3 4

Danger

Catches spontaneously if exposed to air (H250)
In contact with water releases flammable gases which may ignite spontaneously (H260)
Causes severe skin burns and eye damage (H314)
May cause respiratory irritation (H335)
Reacts violently or explosively in contact with water at ambient temperature

Ingredient disclosure

Comments: There are no data available for caesium regarding its irritation or corrosion ability. However, it forms on contact with water a corrosive substance : cesium hydroxide.

References

• ▲1.  Kroschwitz, J.I., Kirk-Othmer encyclopedia of chemical technology. 5th ed. Hoboken, N.J. : John Wiley & Sons. (2004-). [RT-423004]
• ▲2.  Bohnet, M. et al., Ullmann's Encyclopedia of Industrial Chemistry. 7th. Wiley InterScience (John Wiley & Sons). (2003-).   http://www3.interscience.wiley.com (http://www3.interscience.wiley.com/cgi-bin/mrwhome/104554801/HOME)
• ▲3.  Babrauskas, V., Ignition handbook. Issaquah (WA) : Fire Science Publishers. (2003). [RR-334012]   www.doctorfire.com
• ▲4.  Urben, P. G. et Pitt, M.J., Bretherick's handbook of reactive chemical hazards. Vol. 1, 7th ed. Oxford; Toronto : Elsevier. (2007). [RS-415001]
• ▲5.  Canada. Ministère des transports, Règlement sur le transport des marchandises dangereuses. Ottawa : Éditions du gouvernement du Canada. (2014). [RJ-410222]   http://www.tc.gc.ca/fra/tmd/clair-menu-497.htm
  http://www.tc.gc.ca/tmd/menu.htm
• ▲6.  Lewis, R.J., Hawley's condensed chemical dictionary. 13th ed. rev. New York, N.Y. : Van Nostrand Reinhold. (1997).   http://onlinelibrary.wiley.com/book/10.1002/9780470114735 

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