Which of the following is an example of a non-fluorinated refrigerant?

Prepare for the F‑Gas Certification Exam. Study with flashcards and multiple choice questions, each with hints and explanations. Get ready for your certification!

The correct answer is D, ammonia (R-717), because it is considered a non-fluorinated refrigerant. Non-fluorinated refrigerants are substances that do not contain fluorine in their chemical structure. Ammonia, which is composed of nitrogen and hydrogen, does not include any fluorine atoms, making it an environmentally friendly option known for its efficiency as a refrigerant.

In contrast, the other options include various types of fluorinated refrigerants. Freon-12 (a name for dichlorodifluoromethane) and R-134a (tetrafluoroethane) are both examples of halocarbon substances that contain fluorine and have been widely used in refrigeration systems. While these fluorinated substances are effective, they also contribute to ozone depletion and global warming. Similarly, Freon-12 and R-134a are linked to environmental concerns due to their greenhouse gas properties. This distinction is critical in understanding the differences between refrigerants in terms of their chemical composition and environmental impact.

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