If you try to put an item from your CM to an empty slot in your backpack, you get the error message "You can only put items into an empty slot of your backback" (this is not the exact message) and the empty slot in the backpack will be filled with 150 diamond bars that you can even put into your vault keeper.
After the next port or relog these bars will be gone. But i really think you could even salvage them right after you get them (i did not test this though).