Percut, Light Liquid (Mineral Spirits <1%) is a Special Chemical Used to Reduce the Specific Gravity of Perchloroethylene, (3, UN1268, P.G. III)

Interstate Chemical® Mineral Spirits, <1%, 12110-55S9

Features:

• Appearance:  clear, colorless liquid
• CAS Nos.:
  • Mineral Spirits (Solvent Naphtha (Petroleum), Medium Aliphatic):  64742-88-7
• Boiling Point:  > 149 - 213 °C
• Melting Point:  > 40.6 °C
• Relative Evaporation Rate (Butyl Acetate=1):  > 1
• Flammability (solid and gas):  Flammable liquid and vapor
• Vapor Pressure:  300 Pa
• Relative Vapor Density at 20 °C:  4.8
• Relative Density:  0.77 - 0.79
• Density/Specific Gravity:  6.5
• Molecular Mass:  143 g/mol
• Solubility in Water:  insoluble
• Auto-Ignition Temperature:  446 - 518 °F
• Explosive Limits:  0.6 - 6 vol %

Very stable specific gravities can be maintained day after day with practically no specific gravity change.  Specific gravity is 0.866 at 20  degree C.