?Brucite
1. Brucite is a rare fibrous magnesium hydroxide. Its chemical formula is Mg(OH)2.
2. Brucite is white colour and easy to split.
3. Brucite is ideal substitute for asbestos with excellent performance.?
4. Brucite is used in producing rubber, braking, friction, seal, heat insulation materials, coating, textile, adsorbent, fire retardant etc. The finished product is asbestos-free.
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Chemical Composition of Brucite
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Element? | SiO2 | MgO | Al2O3 | Fe2O3? | FeO | CaO | H2O-? | ?H2O+ |
Content(%) | 1-3? | 61-65?? | 0.27?? | 0.6-1.9? | ?2-6 | 0.14? | 0.08? | ?28.02? |
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Physical properties of Brucite
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Fiber type?? | Longitudinal fiber? |
Specific gravity? | 2.44 |
Dehydration temperature | 400~500℃ |
Melting point | 1200℃ |
Tensile strength? | 892.4~1283.7Mpa |
Thermal conductivity | 0.131-0.213W/m.K |
Electrical resistivity | Pv=5.9×106 (Ω?cm) |
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Specification of Brucite
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Code?? | ??F500-Ⅰdry classifying screen test (%) | Sand?? | ?Loose Fiber%? | ?-0.075 MM %? | Imputiry %? | ||||
?+12.5MM | ?+4.75MM | ?+1.4MM | ?+0.4MM | ?-0.4MM?? | ? | ? | ? | ? | |
?≥ | ?≤ | ?≥ | ?≤? | ?≤ | |||||
3-40? | ?- | ?40 | ?43.5 | ?12 | ?4.5? | ?- | ?- | ?58 | ?0.04 |
4-30? | ?30 | ?51 | ?14 | ?5 | ?- | ?- | ?60 | ||
4-20 | ?20 | ?58 | ?16 | 6? | ?- | ?22 | ?61 | ||
4-10?? | ?10 | ?65 | ?18 | ?7 | 0.5? | ? | ?63 | ||
5-60 | ?- | ?60 | ?28 | ?12 | ?1.1 | ?18 | ?69 | ||
5-50 | ?- | ?50 | ?36 | ?14 | ?1.5 | ?- | ?- | ||
6-40? | ?- | ?40 | ?44 | ?16 | ?1.5 | ?- | -? |