RS is a clear colourless liquid with strong odour and bitter taste. RS is on the Hazardous substance list because it is regulated by OSHA and cited by ACGIH, DOT, NFPA and NIOSH.

It has an explosion limit of 3.3% to 19% by volume in ambient air. It has an ignition temperature of 363 Deg.C and flash point of more than 13 deg.C and boiling point of 78 Deg.C. In view of these properties, it is highly flammable.