The quality of regenerated solvent (degreaser)
The regeneration of an organic solvent (simple distillation) is physical process. It is based on solution of polluted organic solvent components (required component (usable solvent/degreaser versus impurities (oil, paint, resin), which use their different boiling points. This process don’t change the chemical structure of a required component (usable solvent/degreaser].
If a required component is created only one chemical substance and it will not be chemically change during a technology process, this component will have the same or similar quality as a new bought product.
If a required component is consist of two or more chemically substances, we must know chemical quality of each substance (some information are known in MSDS ). If a chemical structure of a solvent (degreaser) will not be changed during a technology process (evaporating, oxidizing , etc.), this component will have the same or similar quality as a new bought product.
The quality of polluted solvent (degreaser] affects the quality of a regenerated solvent. The main role is played in it by worker manners and a kind of technology process.
The quality identification is comparison of an original bought product with regenerated product. We use these ways:
A) Appearance … visually identification, universal usage
B) Odor … olfactory identification, universal usage
C) Index of refraction … measurement by hand refractometer KRÜSS HR901 or LEICA AR200 , universal usage
D) pH … measurement by ELTECA 1100 with a combined glass electrode, usage only for chemical product, which has in its structure free H+ (OH-) ion (for example alcohols in water).
This information are written on an identification card, which is fixed on every drum (canister, container, etc.)
Next more detailed information may be realized by gas chromatographic analyses. Their prices can be told to customer on demand.
