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Amorphous Amorphous Boron Boron Powder CAS: 7440-42-8

Sep 19, 2020 | New Wallpaper Products

Amorphous Amorphous Boron Boron Powder CAS: 7440-42-8

Amorphous Elemental Boron

Govt stXiHu (West Lake) Dis.Hu (West Lake) Dis.rd: Q/YTY002-2011

English alias: Boron

CAS RN: 7440-42-8

one. Bodily and chemical houses:

one.1 Elementary image: B

one.two Atomic excess weight: ten.81(on 1979 global atomic weight)

1.three Melting level: 2300 plusmn2 ordmC

1.four Sublimation temperature: 2550 ordmC

one.five Specific gravity: 2.34-2.37

1.six Solubility: Insoluble in drinking water, ethanol, ethyl ether and hydrochloric acid, but dissolved in cold concentrated simple resolution and decomposed Htwo at the very same time. It can be oXiHu (West Lake) Dis.dized by concentrated sulfuric acid or nitric acid to boric acid.

one.7 Properties:

Boron is in between steel series with nonmetal sequence on the periodic table of aspects. As its sturdy electronegative, little atomic radius, and centralized nuclear cost, the chemical properties of it are reactive. It is secure in regular temperature, but it is oXiHu (West Lake) Dis.dized when heated to 300 ordmC and burned if heated to seven hundred ordmC. It is tasteless and odorless.

Its nonmetal property is equivalent to silicon. In substantial temperature, boron can react with oxygen, nitrogen, sulfur, halogen or carbon, and so on. It can be merged straight with many types of metals to form boride. In addition, boron can be also reacted with organic compounds to synthesize some compounds, in which boron is directly joined to carbon, or oxygen eXiHu (West Lake) Dis.sts in between boron and carbon.

2. Technological indexes:


1st quality

2nd quality

threerd grade

Overall Boron(B) articles,%




Water soluble Boron(B) material %




pH worth




Humidity material, %




H2Otwo insoluble, %





Pale brown or brown-black powder

3. Application: Boron has been used mostly in metallurgy, electronics, drugs, ceramics, nuke industry and chemical business and so on, and it has been used in the kind of compound or as a additive in alloys. It can be employed in smelting of some EPT alloy steels and as the gas scavenger for the melting steel, in the ignitor of igniton in the electric industry, in the manage rod of atomic reactor, and as the large-energy fuels for rocket. It has been as an EPTant materials for manufacturing large-purity of halogenated boron and a raw substance for a selection of borides. A great deal of exceptional noble metals can be substituted and saved by it. Boron and its compounds can be also utilized as the catalyst of some organic chemical reactions, and many others.

4. EPT recommendations: ToXiHu (West Lake) Dis.c by ingestion and inhalation. The central anxious technique is influenced by ingestion, gastrointestinal tract is stimulated by inhalation and boron poisoning. Eyes bear sligEPT stimulation as nicely. Operation have to be mounted with rubber gloves, a respirator and eye protection by putting on protecting clothes.

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Amorphous Amorphous Boron Boron Powder CAS: 7440-42-8

Amorphous Amorphous Boron Boron Powder CAS: 7440-42-8