Storing nitric acid

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bisjac

Member
Joined
Feb 14, 2012
Messages
19
I have received my 1 liter of nitric acid 70%. it came in a darkened amber glass bottle with what looks like a screw on cap sealed with wax or some material. cap im not sure what the material is.

i dont feel comfortable keeping it indoors. as of course it is of great hazard on its own of standard falling and breaking danger.
but i read a lot online about fumes escaping that oxidize nearby iron or other objects. and i have to assume that cant be good long term on our health?

Please educate me on the fumes, if they escape, how dangerous they are, how to store near exposed baking soda and that effect.

and most importantly. if i were to store it in my garage (essentially outdoors), im in minneapolis, minnesota. it can get very very cold in the winter. and very very humid in the summer. in case that is relevant, and if it is please explain to me.

i dont have plans to use it for possibly months here while i learn more and collect safety gear and material needed for my project.

there is no room for trial and error with the acid. im just being cautious.

thank you :)



edit;
i am aware its a common topic. and i have read around this forum and googled randomly as well.
my home location here and the temperatures i live at are a little more specific help i need that i cant find answers to.
 
I agree that this isn't clearly addressed here yet. It took me some hard digging to get some answers myself. These are the things that I pieced together (please correct me if I'm wrong):
keep out of all light (except the short time when using)
kept cold is better
do not store with any other acids and bases
do not store in metal
do not store in living area
the fumes from nitric acid are as dangers as the acid itself (VERY). if it contacts water (for example: in the tears in your eye or lining of your lungs), it dissolves in the water and forms nitric acid (which kills cells, etc.). That said, they need to be somewhat high concentration before they can do you harm. You will smell them before they can seriously harm you.

What I came up with:
a plywood box + lid with lip, painted with epoxy. one section for nitric, one for sulfuric and HCl, one for NaOH. it opens from the top, has a polypropylene rope to lift and transport, and each individual section is water tight. There is a pH strip taped near the top of each section (if it changes to bright colors, you know there's a leak)
I store this in a plastic shed in our back yard. So far we've had some warmer days (25ºC), but my nitric still looks colorless clear. I'll be interested what happens when it might get up to 35ºC this summer.

I think a garage isn't a bad location.
I've experienced this before: leaving a bottle of nitric in the sun for a few hours and the liquid turns a redish color. This is what you don't want.
One last thing: if it does leak, it is possible the fumes will find their way to moisture on metal inside your house and dissolve that metal over time (this would take a long time and require a lot more acid than you have)
 

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