| Nutzung |
Drogerien Rohr |
| Oberfläche Umgang |
Other |
| Ort der Herkunft |
Hebei China (Mainland) |
| Marke |
Four Stars |
| Modell-Nummer |
USP Type I |
Physical Data1)expansion coefficient5.0×10-6a)working point>1100°Cb)softening point760-790°Cc)annealing point530-550°C2)density p at25°C2.32Chemical Data1)hydrolytic resistance0.035H12)acid resistanceI13)alkali resistanceA2Composition1)SiO2752)B2O311.23)Al2O35.44)Fe2O30.025)CaO0.66)K2O0.57)Na2O6.58)BaO0.3