Colourless Piperidine in Liquid Form is used as a solvent and intermediate; curing agent for rubber and epoxy resins. Piperidine is a clear colourless liquid with a heavy sweet odour. Piperidine is a highly flammable liquid. Colourless Piperidine in Liquid Form also acts as a catalyst for condensation reactions; ingredient in oils and fuels and as a synthetic flavouring.