Mondré & Manz Frit M 6640
A standard material in Glazecalc's library: its oxide analysis, unity contribution and hazards.
What it is
- Kind
- Frits
- Formula
- SiO₂ 46.5%, Al₂O₃ 8.3%, B₂O₃ 10%, ZnO 10%, K₂O 19%, Na₂O 6.2%
- Also called
- Alkaliborsilikatfritte M 6640, Zinkalkaliborsilikatfritte M 6640, Fritte M6640
- Made by
- Rheinische Email- und Glasurenfabrik Mondré & Manz GmbH (Troisdorf, Germany)
- Sold in
- EU
- Source
- Mondré & Manz, Produktdatenblatt Fritte M 6640 (Stand 10/06) (2006-10)
A zinc alkali borosilicate frit, rich in potash, with high expansion: 108 x 10^-7/K, softening at 582 °C. It is sold for matte, satin and crackle glazes and for raising a glaze's expansion. Sold by Carl Jäger, BSZ and Rantzauer Töpferbedarf.
Oxide analysis and unity formula
Glazecalc has the analysis of Mondré & Manz Frit M 6640 as weight percent of the raw material. The unity contribution is the moles of each oxide in the amount of Mondré & Manz Frit M 6640 that holds 1.0 mole of flux, which is how Glazecalc adds it into a recipe's unity formula.
| Oxide | Weight % | Unity contribution |
|---|---|---|
| SiO₂ | 46.5 | 1.823 |
| Al₂O₃ | 8.3 | 0.192 |
| B₂O₃ | 10 | 0.338 |
| ZnO | 10 | 0.289 |
| K₂O | 19 | 0.475 |
| Na₂O | 6.2 | 0.236 |
- Equivalent weight
- 235.5
- Fired weight
- 235.5
- Loss on ignition
- 0%
The equivalent weight is the grams of Mondré & Manz Frit M 6640 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). The SDS supplied by Carl Jäger for this Mondré & Manz frit says it is not classified as hazardous under CLP. Avoid breathing the dust.
Use it in a recipe
Add Mondré & Manz Frit M 6640 to a recipe in the Glazecalc calculator to see what it does to a glaze's unity formula.