toothpaste rub
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Nitrochemicals
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详细介绍
Toothpaste rubbers:
| Pseudolaric acid | molecular formula | Highlights |
| calcium hydrogenphosphate | CaHPO4 · 2H2O | Relative friction coefficient: 15-25 per cent Fine powder: 320 mesh sieve min90% Fine powder grade D50min = 2.5㎛ |
| calcium pyrophosphate | Ca2P2O7 | Relative friction coefficient: 75-90 per cent Fine powder: 320 mesh sieve min90% Fine powder grade min D50= 2.5㎛ The relative friction coefficient is slightly lower than the hardness of tooth enamel, providing the best teeth whitening guarantee without damaging the enamel. |
| Calcium hydroxyphosphate | Ca5(PO4)3.OH Ca10(PO4)6 .2OH | Relative friction coefficient: 75-90 per cent Fine powder: 320 mesh sieve min90% Fine powder grade min D50= 2.5㎛ It has a restorative function for the wear of tooth axes, and the relative friction coefficient is slightly lower than the hardness of tooth enamel, which provides the best teeth whitening guarantee without damaging the enamel. |
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