General Maintenance VirTis BenchTop 2K, 4K and 6K
38 Revision 004, 12/09
Condenser Chamber
The condenser is fabricated from stainless steel. Under normal use, it can be rinsed
and kept clean with a mild detergent. If corrosive materials are being freeze-dried,
thoroughly clean and rinse all parts of the freeze dryer that come in contact with
product vapor. This prevents build-up of corrosive materials, which protects the freeze
dryer and subsequent product loads. Add baking soda or a mild buffering agent to the
rinse water to help neutralize acidic residue. A siphon type squeeze bottle can be
used to direct the rinse spray into difficult to reach areas.
For more information, refer to Appendix C: Stainless Steel Cleaners.
Acrylic Parts
Clean acrylic covers and manifolds with a mild detergent. Use a soft cloth or
Kimwipes® to avoid scratching the acrylic.
The following table may be used as a general guide to acrylic’s chemical resistances.
Chemical Code Chemical Code Chemical Code
Acetic Acid (5%) R Ethyl Alcohol (50%) LR Nitric Acid (10%) R
Acetic Acid (Glacial) N Ethyl Alcohol (95%) N Nitric Acid (40%) LR
Acetic Anhydride LR Ethylene Dichloride N Nitric Acid (Conc.) N
Acetone N Ethylene Glycol R Oleic Acid R
Acetonitrile N 2-Ethylhexyl Sebacate R Olive Oil R
Ammonium Chloride (Saturated) R Formaldehyde (40%) R Phenol Solution (5%) N
Ammonium Hydroxide (10%) R Gasoline (Regular, Leaded) LR Soap Solution (Ivory) R
Ammonium Hydroxide (Conc.) R Glycerine R Sodium Carbonate (2%) R
Aniline N Heptane R Sodium Carbonate (20%) R
Battery Acid R Hexane (Commercial Grade) R Sodium Chloride (10%) R
Benzene N Hydrochloric Acid N Sodium Hydroxide (1%) R
Benzyl Alcohol N Hydrofluoric Acid (40%) R Sodium Hydroxide (10%) R
Butyl Acetate N Hydrogen Peroxide (3%) R Sodium Hydroxide (60%) R
Calcium Chloride (Sat.) R Hydrogen Peroxide (28%) N Sodium Hypochlorite (5%) R
Calcium Hypochlorite R Isooctane R Sulfuric Acid (3%) R
Carbon Tetrachloride N Isopropyl Alcohol LR Sulfuric Acid (30%) R
Chloroform N Kerosene R Sulfuric Acid (Conc.) N
Chromic Acid (40%) N Lacquer Thinner N Toluene N
Citric Acid (10%) R Methyl Alcohol (50%) LR Transformer Oil R
Cottonseed Oil (Edible) R Methyl Alcohol (100%) N Trichloroethylene N
Detergent Solution (Heavy Duty) R Methyl Ethyl Ketone (MEK) N Turpentine LR
Diesel Oil R Methylene Chloride N Water (Distilled) R
Diethyl Ether N Mineral Oil R Xylene N
Dimethyl Formamide N Naphtha (VM&P) R Trifluroacetic Acid N
Dioctyl Phthalate N
Ethyl Acetate N
Codes:
R = Resistant (withstands long periods
of exposure at temperatures up to 50 °C)
LR = Limited Resistance
(withstands short periods of
exposure at room temperature)
N = Not Resistant (immediate
damage may occur upon exposure)
CAUTION! DO NOT USE ORGANIC SOLVENTS OR ABRASIVE CLEANERS.
© SP Industries, Inc. 2009
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