[ursus]

I would extend this good advice to the use of any plastic container for the storage of strong acids and alkalis or solvents. However thick the plastic may be, it may not have been designed for storage of the material you are putting into it. Even if designed for storage of the material during its normal pattern of use, it may not have been intended for long term storage. That is why otherwise stable chemicals may have an expiration date on the container.

I have seen serious damage done to an old car stored in an enclosed shed along with other stuff, including a gallon jug of muriatic acid (hydrochloric acid). The jug became leaky and the acid fumes ate away the paint and chrome finish on the car Inside, the fabric upolstery was so weaked by the acid fumes that you could poke a hole in it with light finger pressure.