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Technical Information

Comparison of physical properties of Ensolv and Trichloroethylene
  EnSolv Trichloroethylene
Boiling Point °C 70°C 87°C
  Evaporation Rate n-butyl
acetate = 1 ASTM-D35397
4.5 3.0
Kuari Butanol Value 129
Specific Gravity @25°C 1.31 1.46
Viscosity @ 25°C cp 0.49 0.55
Vapour Pressure (mm Hg) 143 68
Vapour Density 4.3 4.5
Specific Heat 0.27 0.23
Latent Heat of vaporization (cal/gm) 58.8 57.2
Water Solubility (gm/100ml) 0.25 0.1
Surface Tension @ 20°C (Dynes/cm) 26.1 32.0
Dielectric Strength (volts) 18,000 30,000
Flammability Limits (vol%) 3.8-9.5 11-5-27.2
Flash Point Abel Closed Cup None None
Auto-decomposition Temperature (°C) 400 420
Global Warming Potential GWP 0.031 No Data
Ozone Depletion Potential ODP 0.005 0.0003
Atmospheric Lifetime (days) 24.7 10
Relative evaporation rate of EnSolv
compared to a range of alternative cleaning solvents
compared to n-Butyl Acetate. Larger numbers signify faster evaporation rates

Compatibility of EnSolv with Elastomers - Recommendations
Elastomer Material Elastomer Test Vapour degreaser Vapour Layer Test
NC = No Change, SC = Significant Change, MC = Moderate Change
Acrylonitrile-Butadiene MC MC
Butadiene Nitrile NC NC
Butadiene Styrene NC NC
Butyl NC NC
Chloroprene NC NC
Chlorosulfonate Polyethylene NC NC
Epichlorohydrin 956 NC NC
Ethylene-Propylene NC NC
Ethylene-Propylene (Terpolymer) MC NC
Fluoroelastomer (“Viton A, B”) NC NC
Isobutylene-Isoprene (Butyl) MC MC
Natural Rubber SC SC
Perfluoroelastomer (“Chemraz”) NC NC
Polychloroprene (Neoprene) SC SC
Polyether Urethane NC NC
Polysiloxane (Silicone) NC MC
Polysulfide NC NC
Polyurethane NC MC
Vinyl-Methyl Siloxane NC NC
Compatibility of EnSolv with Plastics - Recommendations
Plastic Material Acceptability Recommendations Incompatibility Recommendations Vapour Degreaser Vapour Layer Test for 60 minutes
ABS   X Incompatible
Acrylic   X Incompatible
  Arlon (Polyether Ether Ketone)
X   Acceptable
  Chlorinated Polyvinyl Chloride
X   Acceptable
Delrin X   Acceptable
Epoxy Resins X   Acceptable
Furane Resins X   Acceptable
Fluoroethylpropylene X   Acceptable
  High Density Polyethylene
X   Acceptable
Ionomer Resin X   Acceptable
  Kynar (Polyvinylidene Fluoride)
X   Acceptable
Lexan   X Acceptable
Methylmethacrylate X   Incompatible
Mylar X   Acceptable
Nylon X   Acceptable
Polyamide X   Acceptable
  Polyethylene Terephtahalate
X   Acceptable
Polyoxymethylene X   Acceptable
Polypropylene X   Acceptable
Polystyrene   X Incompatible
Polyurethane X   Acceptable
  Polyvinyl Chloride (Rigid, Pipe Compound)
X   Acceptable
  Teflon (Polyvinylidene Fluoride)
X   Acceptable
  Ultem (Polyetherimide)
X   Acceptable

Metal Specimens Corrosion Test Immersion Corrosion Test Immersion Corrosion Test Immersion Corrosion Test Vapour Degreaser Vapour Layer Corrosion Test
Type Per Military Spec T81533A4.4.9 For vapour degreasers Samples Immersed for 2 weeks at 50°C 120°F Samples Immersed for 1 month at 50°C 120°F Samples Immersed for 2 months at 50°C 120°F Samples Immersed in vapour for 60 mins
Aluminium Passed None None None None
Beryllium Passed None None None None
Boron Passed None None None None
Naval Brass Passed None None None None
Bronze Passed None None None None
Carbon Steel Passed None None None None
Chromium Passed None None None None
Copper Passed None None None None
Hastelloy-B Passed None None None None
Hastelloy-C Passed None None None None
Hastelloy-D Passed None None None None
Inconel Passed None None None None
IronCast Passed None None None None
Iron, High Silicon Passed None None None None
Lead Passed None None None None
Magnesium Passed None None Trace None
Manganese Passed None None None None
Nickel Passed None None None None
Platinum Passed None None None None
Silver Passed None None None None
316 Stainless Steel Passed None None None None
Tin Passed None None None None
Titanium Passed None None None None
Uranium Not Tested None None Trace Trace
Vanadium Passed None None None None
Zinc Passed None None None None
Zirconium Passed None None None None

LogoPrecision vapour degreasing solvent

Environmental Impact
EnSolv products are generally greater than 90% n Propyl Bromide (nPB, 1-Bromopropane). Therefore the environmental effect of EnSolv will be very similar to nPB. The following relates to the environmental impact of nPB

The ozone depletion potential (ODP) of nPB is very low. According to the 3D models devised by Dr Wuebbles it is 0.005 between latitudes 30-60°North with a derived atmospheric lifetime of 24.7 days. Global warming potential (GWP) is also very low at 0.31.

nPB is expected to evaporate rapidly from the surface of water, derived from Henry’s law constant of 7.32 x 10-3 m3. atm/mol. The volatilization half life in a model river is only a few hours (3.4 hours) and in a model lake only a few days (4-5 days). When in water nPB hydrolyses with a half-life of 26 days.  There is also evidence of aerobic biodegradation in water. The Bio Concentration Factor (BCF) for nPB is estimated at 23 which is very low indicating that it will not bioaccumulate significantly in aquatic medium. The Lethal Concentration (LC50) for Fathead Minnows (96 hours) is published as 67mg/L. Based on this LC50, the acute concentration at which 50% of tested animals die, nPB’s toxicity to aquatic life is moderate.

The high volatility of nPB ensures its rapid evaporation from moist and dry soils. nPB will also hydrolyse in moist soils. The low LogK octanol/water coefficient of 2.1 leads to a K organic carbon value of 330 which means it is considered to be of moderate mobility in soil.


The Environmentally Friendly Vapour Degreasing Solvent

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