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| Yam khoom | Index | Chav tsev | Cov ntaub ntawv |
| 1 | bulk tshwj xeeb lub ntiajteb txawj nqus | g/cm3 | 3.2 ~ 3.3 |
| 2 | Qhov nruab nrab nthuav dav (20-1000 ℃) | 10-6 / hli | 6.6 ~ 8 |
| 3 | Thermal conductivity | W / (mk) | 2.6-3.8 Nws |
| 4 | Tshwj xeeb kub | KJ/Kg | 1.2 ~ 1.4 hli |
| 5 | refractoriness nyob rau hauv load | ℃ (0.2Mpa) | 1660 |
| 6 | thermal shock kuj | ℃ / 3 zaug | 427 ib |
| 7 | Ua kom cov av noo | ℃ | 1730 ib |
| 8 | Ua haujlwm kub siab tshaj plaws | ℃ | 1650 |
| 9 | Acid kuj | % | 99.54 ib |
| 10 | fastness rau alkali | % | 98.05 ib |
| 11 | nqus dej | % | 5 ~ 10 |
| Tshuaj muaj pes tsawg leeg | |
| Kev sib xyaw | Cov ntaub ntawv (%) |
| SiO 2 | 6 ~ 8 |
| A12O3 | > 90 |
| Lwm tus | <4 |