M10.2: MSDS and ToxNet

My cousin is currently working at a dental office as a dental assistant. She shared with me her office’s MSDS and potassium hydroxide (KOH) used for imaging purposes was included in the sheet.

·       What are the health risks associated with this chemical?

Through immediate direct exposure, KOH can cause direct local effects on the skin, eyes and gastrointestinal tract. If KOH aerosols/mists occur, they can cause direct local effects on respiratory tract. Solutions contains higher than 2% concentrations are corrosive. Solutions with concentration between 0.5% 2.0% are irritating. Contact can irritate and burn the skin and eyes with possible eye damage, and nose and throat as well. Inhaling KOH can irritate the lungs which lead to coughing or shortness of breath. More severe exposure can cause a build-up of fluid in the lungs, and severe shortness of breath. Exposure to KOH can cause headache, dizziness, nausea and vomiting.

·       Is the chemical a carcinogen?

KOH has not been tested for its ability to cause cancer in animals.

·       What personal protective equipment or special precautions should be taken when working with this chemical?

When using the substance, turn on local exhaust or apply breathing protection. Also, wear protective gloves and protective clothing. Wear face shield or face mask, eye protection such as goggle in combination with breathing protection. Finally, do not eat, drink, or smoke while working with the substance.

I think this MSDS for potassium hydroxide that was provided to the dental office is detailed and contains useful information in terms of the potential dangers, health effects and symptoms due to short-term and long-term or repeated exposures. The MSDS also provides preventive methods on how users can protect themselves as well as how to handle spillage disposal, storage, and how to recognize packaging and labeling.