Hexagonal boron nitride
Govt 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
one. Physical and chemical homes:
1.one Molecular method: BN
1.2 Molecular excess weight: 24.eighty one(on 1979 intercontinental atom fat)
1.three Composition method:
one.four Melting stage: 3000 ordmC(secure in the inert environment)
1.five Mohs #8242 hardness: 1-2.
1.six Density: two.29g/cm3
one.seven Solubility: Insoluble in h2o, marginally soluble in scorching acid.
one.eight Homes: Hexa-boron nitride has outstanding electrical properties of electrical insulating, thermal conductivity, corrosion resistance and good lubrication. It has the strong capacity of neutron absorption. With chemical properties of stability, it has corrosion resistance to numerous inorganic acids, alkali, salt solutions and organic and natural solvents. So does all melting metals. Physical and chemical homes unchanged unEPT1000 ordmC. The temperature can achieve 3000 ordmC when employed in nitrogen and argon. H-kind hexa-boron nitride powEPTis autoclaved to become white block, and effortless to processing. Warmth resistance temperature reaches 2000 ordmC.
2. Specialized indexes
|Physical appearance||White powder|
three. Software: H-BN-A: It has exceptional warmth resistance and oXiHu (West Lake) Dis.dation resistance. Its first particle dimensions is tiny, reunion dimensions is huge. With spherical particle, it has been employed as filler, the releasing agent for casting forming and injection molding.
H-BN-B: The houses of merchandise reach or technique sophisticated global stXiHu (West Lake) Dis.Hu (West Lake) Dis.rds. As the particle dimensions is uniform shut to polytetrafluoroethylene, it has been used in the ejector of high-voltage swap. With superb thermal conductivity, it has been used in thermal conductive plastics and rubbers. With reduced oxygen stages ( lt0.5%), it has been used to prepare the EPT ceramic resources.
H-BN-C and H-BN-D: Higher crystallinity. It is epigranular. Large-purity H-BN has outstanding homes of heat conductivity, insulation, lubrication, substantial temperature resistance and molten metal resistance. It has been use at the prime area, incEPT XiHu (West Lake) Dis.Hu (West Lake) Dis.illage and heat conductive materials.
four. EPT directions: With the actual physical inert of boron nitrid, but it is toXiHu (West Lake) Dis.c by ingestion, inhalation, eye and skin make contact with. Pores and skin, respiratory technique, liver, kidney and the circulatory technique might be abnormal by swallow and inhalation. Eye and pores and skin speak to can lead to irritation. Procedure must be set up with rubber gloves, a respirator and eye defense by donning protecting garments.
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