aerosol
A dispersion in which a material is dissolved or
suspended in a liquid which volatilizes to produce
a fine spray when pressure is released. The spray
carries the active material. Tn archival work,
aerosols are used for dispersing deacidification
solutions; in this case the propellant, which must
be inert and nonflammable, is frequently a
chlorofluorocarbon, e.g., freon 12,
dichlorodifluoromethane (CCl 2 F
2 ).
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