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Multiple Choice

Recovered refrigerants may contain which contaminant along with moisture and oil?

When refrigerants are recovered, moisture and oil are common contaminants, and the third contaminant often found with them is acids. Moisture can react with the refrigerant and with the oil in the system to form acids, such as mineral acids that can attack metals and remove lubricants. This acidic contamination signals degradation and can lead to corrosion, poor performance, and damage to recovery and reclamation processes, so it’s treated as a key contaminant to address. Salt or dirt aren’t the standard contaminants emphasized in this context, and water is essentially moisture. The emphasis is on acids as the additional contaminant that comes up alongside moisture and oil.

When refrigerants are recovered, moisture and oil are common contaminants, and the third contaminant often found with them is acids. Moisture can react with the refrigerant and with the oil in the system to form acids, such as mineral acids that can attack metals and remove lubricants. This acidic contamination signals degradation and can lead to corrosion, poor performance, and damage to recovery and reclamation processes, so it’s treated as a key contaminant to address.

Salt or dirt aren’t the standard contaminants emphasized in this context, and water is essentially moisture. The emphasis is on acids as the additional contaminant that comes up alongside moisture and oil.