They are air, calcium chloride brine, sodium chloride brine, alcohol, and similar nonfreezing solutions. The purpose of Class 2 refrigerants is to receive a reduction of temperature from Class 1 refrigerants and convey this lower temperature to the area to be air-conditioned.
Elections for the United States Senate will be held on November 8, 2016, with 34 of the 100 seats in the Senate being contested in regular elections whose winners will serve six-year terms from January 3, 2017 until January 3, 2023.
The date of the 2016 election is Nov. 8. On the date of the 2016 election, which is the second Tuesday in November, voters will choose the next U.S. president, 34 of the 100 members of the U.S. Senate and all 435 members of U.S. House of Representatives. The political makeup of Congress will likely change.