I have anhydrous citric acid powder that solidified in its plastic bottle. How can I use this solidified extremely hard bulk of material?

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Smaiel Herradi

use a spatula and an agate mortar for grinding the bulk.

Yitzchak Handel

Put it in a desiccating environment. Possibly also at a low elevated temp, i.e. 40 or 50 C.

Emil Hristov Yankov

Hello

The use of solid citric acid can be resolved or recovered mechanically or used in this state.

What is the purpose of dust?

With respect

Emil Yankov

Sherry Rao

Check this link:

https://www.flexicon.com/Materials-Handled/Citric-Acid.html