Paper-based materials must include an alkali reserve of at least 2% calcium carbonate (CaCO3). The alkali reserve has the ability to capture acids that may be in the air, the photograph, or in the ...

The questions in this quiz are suitable for GCSE chemistry students studying titration calculations and making salts from acids and alkalis. If you struggled with the quiz, don't panic - we've got you ...

PROF. LUNGE'S monumental work on the manufacture of sulphuric acid is one of the acknowledged classics of chemical technology, and the soundest proof of its continued merit and widespread appreciation ...