Hexagonal boron nitride
Government stXiHu (West Lake) Dis.Hu (West Lake) Dis.rd: Q/TY.J08.04-2015
English alias: Boron nitride off white powder
CAS RN: 10043-11-5
1. Actual physical and chemical houses:
1.1 Molecular formulation: BN
1.2 Molecular weight: 24.eighty one(on 1979 international atom excess weight)
one.three Framework method:
one.4 Melting position: 3000 ordmC(secure in the inert environment)
1.5 Mohs #8242 hardness: one-two.
one.6 Density: 2.29g/cm3
1.seven Solubility: Insoluble in h2o, slightly soluble in very hot acid.
one.8 Houses: Hexa-boron nitride has superb electrical houses of electrical insulating, thermal conductivity, corrosion resistance and very good lubrication. It has the robust capacity of neutron absorption. With chemical houses of security, it has corrosion resistance to different inorganic acids, alkali, salt answers and natural solvents. So does all melting metals. Bodily and chemical qualities unchanged unEPT1000 ordmC. The temperature can get to 3000 ordmC when employed in nitrogen and argon. H-type hexa-boron nitride powEPTis autoclaved to grow to be white block, and easy to processing. Warmth resistance temperature reaches 2000 ordmC.
2. Technical indexes
| Product | 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 | le0.3 | le0.3 | le0.three | le0.three |
| Particle size,um | ~three | ~five | ~ten | ~14 | ~19 | ~30 |
| Visual appeal | White powder | |||||
three. Application: H-BN-A: It has excellent warmth resistance and oXiHu (West Lake) Dis.dation resistance. Its original particle size is small, reunion measurement is big. With spherical particle, it has been employed as filler, the releasing agent for casting forming and injection molding.
H-BN-B: The qualities of merchandise achieve or approach superior international stXiHu (West Lake) Dis.Hu (West Lake) Dis.rds. As the particle measurement is uniform shut to polytetrafluoroethylene, it has been utilised in the ejector of large-voltage change. With excellent thermal conductivity, it has been utilized in thermal conductive plastics and rubbers. With lower oxygen amounts ( lt0.five%), it has been utilised to prepare the EPT ceramic materials.
H-BN-C and H-BN-D: High crystallinity. It is epigranular. Substantial-purity H-BN has excellent homes of warmth conductivity, insulation, lubrication, large temperature resistance and molten metal resistance. It has been use at the best field, incEPT XiHu (West Lake) Dis.Hu (West Lake) Dis.illage and warmth conductive material.
4. EPT recommendations: With the actual physical inert of boron nitrid, but it is toXiHu (West Lake) Dis.c by ingestion, inhalation, eye and pores and skin speak to. Pores and skin, respiratory technique, liver, kidney and the circulatory method may possibly be irregular by swallow and inhalation. Eye and pores and skin speak to can result in inflammation. Operation have to be set up with rubber gloves, a respirator and eye safety by putting on protective garments.
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