I'd like to change chromium language from English to Italian on an Ubuntu 12.04 based on English locale. Thanks for helping
well for only one application means not possible but you can do it with placing a new environment variable.
I mean open your terminal and type as
this is to launch chromium from terminal and it will be in Italian. when you close the terminal the session of Italian language will be gone.
I believe, when you say chromium, it means chromium browser.
Here are the steps for anyone else interested.