Mondré & Manz Calcium Borate Frit M 9152
A standard material in Glazecalc's library: its oxide analysis, unity contribution and hazards.
What it is
- Kind
- Frits
- Formula
- SiO₂ 7.3%, Al₂O₃ 7.5%, B₂O₃ 47.7%, CaO 37.5%
- Also called
- Calziumboratfritte M 9152, Calciumboratfritte M9152, Fritte M 9152
- Made by
- Rheinische Email- und Glasurenfabrik Mondré & Manz GmbH (Troisdorf, Germany)
- Sold in
- EU
- Similar materials
- Calcium Borate Frit (Potclays 2268)
- Source
- Mondré & Manz, Produktdatenblatt Fritte M 9152 (Stand 04/07) (2007-04)
A calcium borate frit with very little silica, used as a concentrated source of boron and calcium. German suppliers sell it as a replacement for colemanite and Portabor that avoids their thickening of the slurry and their spitting in the kiln. Expansion is 76.2 x 10^-7/K, with softening at 670 °C. Sold by keramikbedarf-online.de and Rantzauer Töpferbedarf.
Oxide analysis and unity formula
Glazecalc has the analysis of Mondré & Manz Calcium Borate Frit M 9152 as weight percent of the raw material. The unity contribution is the moles of each oxide in the amount of Mondré & Manz Calcium Borate Frit M 9152 that holds 1.0 mole of flux, which is how Glazecalc adds it into a recipe's unity formula.
| Oxide | Weight % | Unity contribution |
|---|---|---|
| SiO₂ | 7.3 | 0.182 |
| Al₂O₃ | 7.5 | 0.110 |
| B₂O₃ | 47.7 | 1.025 |
| CaO | 37.5 | 1.000 |
- Equivalent weight
- 149.54
- Fired weight
- 149.54
- Loss on ignition
- 0%
The equivalent weight is the grams of Mondré & Manz Calcium Borate Frit M 9152 that hold 1.0 mole of flux. The fired weight is what is left of that after firing.
Hazards and safety
Hazards: Leadless frit (glass, CAS 65997-18-4) with a lot of boron. No SDS was found for this product. Some EU suppliers label boron-rich frits as toxic to reproduction (H360FD), so check the SDS that comes with the bag. Avoid breathing the dust.
Use it in a recipe
Add Mondré & Manz Calcium Borate Frit M 9152 to a recipe in the Glazecalc calculator to see what it does to a glaze's unity formula.