Velderon

Velderons were short, blue-skinned humanoids whose skins reacted to water to create highly corrosive acid vapour. (PROSE: Far from Home)

Technology
The Velderons created distress beacons that were capable of penetrating the Time Vortex. The escape capsules from a Velderon ship were pale blue globes that were biodegradable. (PROSE: Far from Home)