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I recently purchased a 500ml bottle of 99% isopropyl alcohol (aka isopropanol aka rubbing alcohol) for everyday use at home. The label for the bottle worryingly states:

Wear protective gloves/protective clothing/eye protection/face protection

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I'm surprised by this particular warning because I've always known of isopropanol being used for such everyday household appliances as cleaning and sterilising wounds, and have never known even the experts to wear or recommend wearing any sort of protective clothing while doing so.

The most I expect to handle the isopropanol is when pouring the solution from the 500ml bottle into smaller dropper bottles, and after that either using the 500ml bottle to wet cleaning cloths, or the dropper bottle pipettes to apply the solution directly to electronics.

Do I need to wear protective clothing for such applications? If not, at what volumes/for what applications would it be necessary to start wearing protective clothing?

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closed as primarily opinion-based by Mithoron, Jon Custer, Todd Minehardt, Pritt Balagopal, M.A.R. Apr 10 '18 at 8:20

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ Well, that's rather opinion based, and as far as my opinion goes, if you won't drink it instead, you should be OK even if you won't use any protective gear. Label needs to warn, otherwise producer could be sued. $\endgroup$ – Mithoron Apr 9 '18 at 23:33
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    $\begingroup$ You don’t want it in your eyes, that is for absolute sure. It will irritate your skin. Read the MSDS and act accordingly. $\endgroup$ – Jon Custer Apr 10 '18 at 0:18
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    $\begingroup$ Actually, rubbing alcohol is 10% (maybe up to 20%) isopropanol, not 100%. Diluted isopropanol is less harmful (unless ingested) than pure isopropanol. If you are careful, one can even work with concentrated sulfuric acid without protective clothing (although I would not advise it). $\endgroup$ – LDC3 Apr 10 '18 at 2:28
  • $\begingroup$ @JonCuster Regarding the MSDS, I came across this answer here: chemistry.stackexchange.com/a/4607/61951, which is partly why I asked the question and included the volume of alcohol that I'm working with. $\endgroup$ – Hashim Apr 10 '18 at 2:35
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    $\begingroup$ This is quite usual with warning and material safety data sheets. A non chemist or a non professional handler can overestimate them. But that is by purpose according to a principle of high caution. A lab coat is anyway always fast removed as compared to pullover or shirts, when it comes to fire hazard. Think about Tabasco sauce. If it would be sold as a chemical it would surely have warnings on the label. Disclaimer: follow the bottle recommendations ;-) $\endgroup$ – Alchimista Apr 10 '18 at 9:43
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You'd be surprised at what things you might not think of as "chemicals" can do. One of my co-workers got a spritz of oil in his eye while peeling an orange, and now he is afraid when I tell him that I eat orange rinds because they are rich in vitamin C. The moral of the story: your eyes are so sensitive that at the very least, eye protection is a must with just about anything in the lab, even oils. I second Jon Custer's suggestion of reading the MSDS.

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