Keeping it at a Dry place is highly recommended. Moreover, if you want to store it, keeping it at dry place is only beneficial. Else than that cut off each type of contact that might lead to encounter with fire. As even a minor contact can turn into a great explosion. As a result, toxic fumes of TCCA when combined with fire starts forming, which are highly injurious for health.
Therefore, keeping this acid secure and safe at dry place is necessary and it will be less harmful. Otherwise, one has to face severe damages and destructions due to this single compound. Thus, whoever wishes to store it for future use should keep it in a dry place. As only storing in this way is beneficial.
Attention: Being a treating agent for water it is extensively used in pools as a purifying agent. At the same time, the excessive use of it might cause some severe skin and respiratory allergies. For this purpose, using t with extra care and consuming the right amount is the only beneficial way of getting maximum advantage from it.