her female organs mentioned in front of everyone like that
Not trying to nitpick here, but since several people keep saying something about this, I did want to point out that, unless the OP left out some details that y'all heard the boss say, never did he mention her uterus, fallopian tubes or vagina.
He said that the solvent wasn't safe for a female of childbearing age to be near. Which is true of many items. There are several very common products on the market right now that a female of childbearing age simply should NOT, in any circumstances, touch. It has nothing to do with whether she's pregnant (or if she even wants to become pregnant at any point in her life). It's just that this is a dangerous chemical that they have found, through clinical trials, to be extremely dangerous to females.
If my job protected me in such a way, it seems I'd be thanking them for knowing that this could be a dangerous substance for me to be near. I don't care whether or not I ever wished to be pregnant. The simple fact that they have determined it to be something dangerous to me is enough for me. Heck, I don't want my innards damaged - baby or not. If a person (female, male, black, white, tall, short, whatever) is at risk in some way, it's important for them to be aware of it.
Could he have mentioned it in private? Sure. Ok. If it protects your (the generic "your" - not directed at anyone in particular) delicate sensibilities to be informed that you're a female, I guess he could whisper it to you. But, was he "rude" in doing it the way he did? No. Had he mentioned any of the items in my 1st paragraph, it absolutely would have been rude - and subject to a talking to. But, to generically say something about the dangers of this item? Not really rude.