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With Google Trends, you can compare the world’s interest in your favorite topics. Enter up to five topics and see how often they’ve been searched on Google over time. Google Trends also shows how frequently your topics have appeared in Google News stories, and in which geographic regions people have searched for them most.

I tried experimenting by searching different chemicals in Google Trends.

For example, searching for Acetic Acid, retrieved a news story about projected forecast for the world market of Acetic Acid by the year 2015.

World Market for Acetic Acid Projected to Reach 11.8 Million Tons in 2015, According to New Report by Global Industry Analysts, Inc.

See More News about Acetic Acid.

Some other examples:

Methanol

Ethylene Oxide

See More News about Ethylene Oxide.

Try this:
Find out which countries have people have searched for 'Phenol' the most?