What is 'a' in the name of R134a refrigerant?
Answer: 'a' is used to indicate that it is an isomer. Refrigerant R134 and R134a have same chemical formula but different chemical structure and hence properties.
The IUPAC name of this refrigerant is 1,1,1,2-Tetrafluoroethane.
The chemical formula of R134a is CH2FCF3.
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