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21646 Baltimore Ave., Georgetown, DE 19947 |
FRITTED WARE -- Suggested Cleaning Solutions
The following chart lists suggested cleaning solutions when using various materials in R&H Filter's fritted ware.
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| Fatty materials | Carbon tetrachloride |
| *Organic matter | Hot concentrated cleaning solution, or hot concentrated sulfuric acid plus a few drops of sodium or potassium nitrite |
| Albumen | Hot ammonia or hot hydrochloric acid |
| Glucose | Hot mixed acid (H2SO4 + HNO21646) |
| Copper or Iron Oxides | Hot hydrochloric acid plus potassium chlorate |
| Mercury Residue | Hot nitric acid |
| Silver Chloride | Ammonia or sodium hyposulfite |
| Viscose | 5-10% NaOH, followed by cleaning solution |
| Aluminous and Siliceous Residues | 2% hydrofluouric acid followed by concentrated sulfuric acid; rinse immediately with distilled water followed by a few mL of acetone. Repeat rinsing until all trace of acid is removed. |
More on R&H Filter Fritted Ware:
GENERAL | PROPER CARE | OPERATING PRESSURES
THERMAL LIMITATIONS | POROSITIES
CONTACTING R&H FILTER CO.INC.
If you have questions that have not been answered on this site, please
contact R&H Filter using the phone numbers listed above or by E-MAIL.