Amorphous Element Boron CAS No 7440-42-8 Use in Metallurgy

Passivated / 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: Elementary symbol: B

1.two Atomic excess weight: 10.eighty one (on 1979 intercontinental atomic bodyweight)

one.three Melting position: 2300 plusmn2 ordmC

1.4 Sublimation temperature: 2550 ordmC

1.5 Density: two.34-two.37 g/cm3

one.six Solubility: Insoluble in water, ethanol, ethyl ether and hydrochloric acid. Dissolved in chilly concentrated simple solution and produced Htwo at the identical time. It can be oXiHu (West Lake) Dis.dized by concentrated sulfuric acid or nitric acid and create boric acid.

1.7 Properties: It is tasteless and odorless. In the periodic table of aspects, boron is amongst metallic factor series and non-steel component series. Boron has numerous traits, this sort of as, powerful electronegative, reduced atomic radius, and centralized nuclear charge, consequently, the chemical qualities of boron are comparatively lively. The non-metallic residence of boron is equivalent to that of silicon. At higher temperature, boron can react with oxygen, nitrogen, sulfur, halogen or carbon, etc. Boron is secure at normal temperature, but it will be oXiHu (West Lake) Dis.dized when heated to three hundred ordmC and burned if heated to seven-hundred ordmC. . Boron can be mixed straight with a lot of sorts of metals to form metal boride.

two. Technical indexes:

(one)Amorphous Elemental Boron


onest quality

twond grade

3rd quality

Whole Boron(B) material, %




Drinking water soluble Boron(B) articles, %




pH value




Dampness articles, %




H2O2 insoluble, %




Visual appeal

Pale brown or brown-black powder

(2)Passivated Amorphous Elemental Boron



Whole Boron (B) material, %


Drinking water soluble Boron (B) content %


pH price


Humidity content, %


H2O2 insoluble, %


Particle dimension (dfifty), microm


Physical appearance

Pale brown or brown-black powder

three. Software: Boron has been employed largely in metallurgy, electronics, drugs, ceramics, nuclear industry and chemical market and many others. Boron has also been used in the forms of compounds or as an additive in alloys. In addition, it can be employed as the gas scavenger in metallurgy of some EPT alloy and smelted steels, the ignitor in the electric industry, the manage rod of atomic reactor, and the large-vitality fuels for ducted solid rocket. Boron is the EPTant uncooked material for manufacturing high-purity halogenated boron and for a assortment of borides. Some unusual noble metals can be substituted by boron. Boron and its compounds can also be utilized as the catalysts of some natural chemical reactions.

four. EPT directions: ToXiHu (West Lake) Dis.c by ingestion and inhalation. The damage of central nervous system, abdomen and intestinal stimulation, ig. boron poisoning, are induced by inhalation of boron. Eyes bear sligEPT stimulation as well. Be handled with rubber gloves, a respirator and eye defense by wearing protecting clothing.

5 EPT: Vacuum-EPT. Aluminum foil bag with plastic bag, one kg internet each.

6. Storage: Saved at great, dry and ventilate area. The shelf lifestyle is 12 months right after made day. It is still obtainable if the retest final results of the houses are competent after expired date

seven. Transportation:Avoid rain, sunligEPT and crash. Do not combine with sturdy oXiHu (West Lake) Dis.dizer.

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Amorphous Element Boron CAS No 7440-42-8 Use in Metallurgy

Amorphous Element Boron CAS No 7440-42-8 Use in Metallurgy