(1) Boiling stones A for preparative work
- For use in aqueous, neutral and base solvents, also under vacuum.
- Effective in very small quantities of liquid.
- Ready for use again after interruptions.
- To prevent surging.
| Article | Order No. | | Boiling stones type A, pack of 250 g/approx. 2400 pieces | 21 00 70001 |
(2) Boiling stones B for analytical work
- For distillations in acidic, neutral and base solvents.
- Not suitable for vacuum distillations.
- Effective in very small quantities of liquid.
- Ready for use again after interruptions.
- Ceramic product of high purity.
| Article | Order No. | | Boiling stones type B, pack of 200 g/approx. 9000 pieces | 21 00 70002 |
(3) "Resistent" boiling stones for preparative and analytical work
- In biochemistry, biotechnology, microbiology and microanalysis.
- For vacuum and high-vacuum distillations.
- Absolute resistance to the strongest acids, lyes, solvents and oxidation agents.
- No abrasion and no absorption of substances.
- Sterilization by burn-out, softening at 2500°C.
- Effective in very small quantities of liquid.
| Article | Order No. | | Boiling stones Resistant, glass 50 g/approx. 1800 pieces | 21 00 70003 | | Boiling stones Resistant, glass 20 g/approx. 715 pieces | 21 00 70004 |
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