Co2 under compression is in a liquid for but once it is released from the compressed environment it turns to gas. Thus the reg is fine ...on the other hand getting beer into the reg is bad news.
Sorry Tube I wasn't having a go at anyone. Not in my nature!
This gas thing has been bashed about for years on the forum and there is a fair bit of scare mongering at times. Apart from the risk of the cylinder blowing up...which is very small really considering they nearly all have a blow off valve, it's all chocolates....just keep them away from fire!