What are the storage and handling requirements for propionic acid?
I would say be very careful! Acid is always meant to be handled with care and the proper equipment. I don’t fancy getting any dilution of this acid spilt anywhere either because it’s quite pungent and not very pleasantly either. Best to ensure that you’ve got it double bagged and sealed with whatever storage method you’re using! Haha!
Stainless steel is the preferred material of construction for storage of propionic acid; types 304 and 316 are commonly used. Type 304 stainless steel is suitable for use at moderate temperatures. It can be used for storage tanks and, if hot water is used rather than steam, heat transfer surfaces can also be type 304. Where steam temperatures are encountered, type 316L stainless steel is recommended. Aluminum can be used for storage of glacial propionic acid; alloys of the 3000, 5000 and 6000 series have been used. Aluminum is not recommended for elevated temperatures or for aqueous solutions of propionic acid. Notes: Propionic acid attacks aluminum very slowly. After several weeks storage, suspended aluminum salts may cause the acid to have a hazy appearance, but they may be filtered out with a fine porosity filter. Propionic acid is not compatible with many commonly used materials, e.g., steel, copper and its alloys, nickel, galvanized iron, zinc, and tin. Therefore, these meta
