Amorphous Elemental Boron
Executive stXiHu (West Lake) Dis.Hu (West Lake) Dis.rd: Q/YTY002-2011
English alias: Boron
CAS RN: 7440-42-eight
1. Bodily and chemical qualities:
one.one Elementary symbol: B
1.two Atomic fat: 10.81(on 1979 global atomic fat)
one.three Melting point: 2300 plusmn2 ordmC
one.4 Sublimation temperature: 2550 ordmC
1.5 Specific gravity: 2.34-two.37
1.six Solubility: Insoluble in water, ethanol, ethyl ether and hydrochloric acid, but dissolved in chilly concentrated simple resolution and decomposed Htwo at the identical time. It can be oXiHu (West Lake) Dis.dized by concentrated sulfuric acid or nitric acid to boric acid.
1.7 Properties:
Boron is in between metallic collection with nonmetal collection on the periodic desk of factors. As its strong electronegative, modest atomic radius, and centralized nuclear demand, the chemical homes of it are reactive. It is stable in standard temperature, but it is oXiHu (West Lake) Dis.dized when heated to three hundred ordmC and burned if heated to 700 ordmC. It is tasteless and odorless.
Its nonmetal house is comparable to silicon. In higher temperature, boron can respond with oxygen, nitrogen, sulfur, halogen or carbon, and so forth. It can be combined right with several kinds of metals to sort boride. Furthermore, boron can be also reacted with natural and organic compounds to synthesize some compounds, in which boron is directly joined to carbon, or oxygen eXiHu (West Lake) Dis.sts among boron and carbon.
2. Technical indexes:
|
Merchandise |
1st quality |
twond grade |
threerd quality |
|
Whole Boron(B) material,% |
ge95. |
ge92 |
ge90 |
|
H2o soluble Boron(B) content material % |
le0.sixty |
le0.eighty |
le1.00 |
|
pH benefit |
six.-eight. |
six.-eight. |
6.-8. |
|
Moisture material, % |
le1.00 |
le1.00 |
le1.00 |
|
H2O2 insoluble, % |
le0.70 |
le0.70 |
le1.50 |
|
Look |
Pale brown or brown-black powder |
||
three. Application: Boron has been utilised mostly in metallurgy, electronics, drugs, ceramics, nuke sector and chemical sector and so forth, and it has been utilised in the sort of compound or as a additive in alloys. It can be used in smelting of some EPT alloy steels and as the fuel scavenger for the melting steel, in the ignitor of igniton in the electric powered market, in the management rod of atomic reactor, and as the higher-vitality fuels for rocket. It has been as an EPTant material for production substantial-purity of halogenated boron and a raw materials for a variety of borides. A good deal of uncommon noble metals can be substituted and saved by it. Boron and its compounds can be also employed as the catalyst of some natural chemical reactions, and so forth.
4. EPT guidelines: ToXiHu (West Lake) Dis.c by ingestion and inhalation. The central nervous system is motivated by ingestion, gastrointestinal tract is stimulated by inhalation and boron poisoning. Eyes bear sligEPT stimulation as properly. Procedure need to be mounted with rubber gloves, a respirator and eye safety by putting on protecting clothes.
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