(Cl; 23-142) As is known, the thermal decomposition of alpha. alumina trihydrate leads, by partial decomposition, to an activated alumina characterized by a large specific surface which imparts to it remarkable adsorbent properties. The specific surface of the dehydrated product depends on its water content.
First things first; decide whether you will use double or single quotation marks for the initial quote. If you use single quotations marks, then you should use double quotation marks for a quote within a quote. If you use double quotation marks, then you should use single quotation marks for a quote within a quote. For example: When I say 'immediately,' I mean some time before August, said the manager.
Update: No, it's not a single quote. Generally the apostrophe key is used for that; they're on the same button after all.  ' ` Quotes, apostrophe, the thing I'm asking about. Not the same thing.