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Dashiqiao City Quanshun Flame-Proof Material Co., Ltd.
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DBM 87%90%91%92% 93%94%95%96%
| Item | MgO | SiO2 | CaO | LOI | B.D.(g/cm3) |
| DBM-97 | 97 | 0.7 | 1.4 | 0.2 | 3.2 |
| DBM-96 | 96 | 1.5 | 1.5 | 0.2 | 3.2 |
| DBM-95 | 95 | 2.2 | 1.6 | 0.3 | 3.2 |
| DBM-94 | 94 | 3 | 1.6 | 0.3 | 3.2 |
| DBM-93 | 93 | 3.5 | 1.6 | 0.3 | 3.2 |
| DBM-92 | 92 | 4 | 1.6 | 0.3 | 3.18 |
| DBM-92 | 92 | 4 | 1.6 | 0.3 | 3.18 |
| DBM-91 | 91 | 4.5 | 1.6 | 0.3 | 3.18 |
| DBM-90 | 90 | 4.8 | 2 | 0.3 | 3.18 |
| DBM-87 | 87 | 7 | 2.2 | 0.3 | 3.2 |
Magnesium is a chemical element with symbol Mg and atomic number 12. Its common oxidation number is +2.
It is an alkaline earth metal and the eighth most abundant element in the Earth's crust and ninth in the known universe as a whole. Magnesium is the fourth most common element in the Earth as a whole, making up 13% of the planet's mass and a large fraction of the planet's mantle.
Due to magnesium ion's high solubility in water, it is the third most abundant element dissolved in seawater.