Does ghb freeze

In my professional opinion, I believe you may be referring to BDO, which has a freezing point of +19°C. GBL, on the other hand, freezes at around -43°C. Both of these areanalogs of GHB and enzymes in your body convert them to GHB. The freezing point of GHB is -3°C. You can find all this information if you just look at the SDS for each chemical.

GHB: CAS # 591-81-1

GBL; CAS # 96-48-0

BDO; CAS # 110-63-4