Hexagonal boron nitride
Executive stXiHu (West Lake) Dis.Hu (West Lake) Dis.rd: Q/TY.J08.04-2015
English alias: Boron nitride off white powder
CAS RN: 10043-eleven-five
1. Bodily and chemical qualities:
one.one Molecular method: BN
1.two Molecular fat: 24.81(on 1979 global atom fat)
one.three Structure formulation:
one.four Melting level: 3000 ordmC(steady in the inert atmosphere)
one.five Mohs #8242 hardness: one-2.
one.6 Density: two.29g/cm3
1.7 Solubility: Insoluble in drinking water, slightly soluble in sizzling acid.
one.eight Houses: Hexa-boron nitride has excellent electrical homes of electrical insulating, thermal conductivity, corrosion resistance and very good lubrication. It has the sturdy capacity of neutron absorption. With chemical qualities of balance, it has corrosion resistance to numerous inorganic acids, alkali, salt remedies and natural solvents. So does all melting metals. Actual physical and chemical qualities unchanged unEPT1000 ordmC. The temperature can achieve 3000 ordmC when used in nitrogen and argon. H-variety hexa-boron nitride powEPTis autoclaved to turn into white block, and straightforward to processing. Heat resistance temperature reaches 2000 ordmC.
two. Complex indexes
| Item | H-BN-A | H-BN-B | H-BN-C | H-BN-D | H-BN-E | H-BN-F |
| BN,% | ge99. | ge99. | ge99. | ge99. | ge99. | ge99. |
| B2O3,% | le0.four | le0.four | le0.three | le0.3 | le0.3 | le0.three |
| Particle measurement,um | ~three | ~5 | ~ten | ~fourteen | ~19 | ~thirty |
| Look | White powder | |||||
3. Application: H-BN-A: It has superb heat resistance and oXiHu (West Lake) Dis.dation resistance. Its authentic particle measurement is tiny, reunion dimensions is large. With spherical particle, it has been utilized as filler, the releasing agent for casting forming and injection molding.
H-BN-B: The houses of items achieve or strategy innovative intercontinental stXiHu (West Lake) Dis.Hu (West Lake) Dis.rds. As the particle dimension is uniform closed to polytetrafluoroethylene, it has been used in the ejector of higher-voltage switch. With excellent thermal conductivity, it has been utilised in thermal conductive plastics and rubbers. With lower oxygen levels ( lt0.5%), it has been employed to prepare the EPT ceramic materials.
H-BN-C and H-BN-D: Large crystallinity. It is epigranular. Substantial-purity H-BN has excellent qualities of heat conductivity, insulation, lubrication, substantial temperature resistance and molten metal resistance. It has been use at the prime discipline, incEPT XiHu (West Lake) Dis.Hu (West Lake) Dis.illage and heat conductive materials.
4. EPT directions: With the physical inert of boron nitrid, but it is toXiHu (West Lake) Dis.c by ingestion, inhalation, eye and skin get in touch with. Skin, respiratory method, liver, kidney and the circulatory system may possibly be abnormal by swallow and inhalation. Eye and skin get in touch with can lead to irritation. Procedure have to be set up with rubber gloves, a respirator and eye defense by putting on protecting clothing.
Release agent Ceramics
lubricating oil Cosmetic
Electrical insulator
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