prepositions - What is the difference between information on about . . . information of a sensitive nature This does not mean information about "sensitive nature", but describes the information as sensitive (so it might need to be kept private) Similarly: information of this kind is considered sensitive This means the type of information we are talking about (such as medical records) is sensitive
Provide information on, of or about something? Normally you'd say "important information" or "urgent information", but the of form is a well-accepted formal phrasing You might try to use it to indicate owner of the information, but that's really awkward "The disk contains information of Sony on their newest mp3 player" - but I don't think you'd ever encounter it in real life
prepositions - This information is required of you or this . . . required from works better here; we use this construction when the focus is on results, things, or end products We use required of to focus on the manner of doing certain thing or the behaviour of a person Your examples are ungrammatical and verbose, as commented I suggest the following: This information is required from you to prepare quotes
What are other phrases for full of information? I'm thinking of the following: info-packed information-packed knowledge-packed I guess these are grammatically acceptable but probably there are better choices