R170 + oil

[myburg]

Can anyone tell me what oil is to be used for R170 in ULT application

[Chunk]

Hi Myberg

R170(ethane) is compatible with virtually all oils but prefered types are mineral oils and allkyl benzene,however,a lubricant with a higher than normal viscocity is normally required as hydrocarbons are more souluble than conventional refrigerants.:D