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
one. Physical and chemical qualities:
one.1 Elementary image: B
one.two Atomic fat: ten.eighty one (on 1979 intercontinental atomic fat)
1.3 Melting level: 2300 plusmn2 ordmC
1.4 Sublimation temperature: 2550 ordmC
one.5 Density: two.34-two.37 g/cm3
one.6 Solubility: Insoluble in drinking water, ethanol, ethyl ether and hydrochloric acid. Dissolved in cold concentrated standard solution and produced H2 at the very same time. It can be oXiHu (West Lake) Dis.dized by concentrated sulfuric acid or nitric acid and generate boric acid.
one.7 Qualities: It is tasteless and odorless. In the periodic table of components, boron is among steel component collection and non-metal factor series. Boron has numerous traits, this kind of as, powerful electronegative, lower atomic radius, and centralized nuclear cost, for that reason, the chemical houses of boron are comparatively energetic. The non-steel residence of boron is related to that of silicon. At large temperature, boron can respond with oxygen, nitrogen, sulfur, halogen or carbon, and so forth. Boron is stable at standard 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 merged immediately with many types of metals to kind steel boride.
2. Technological indexes:
(1)Amorphous Elemental Boron
|
Product |
1st quality |
2nd quality |
3rd quality |
|
Total Boron(B) content material, % |
ge95. |
ge92. |
ge90. |
|
Drinking water soluble Boron(B) content material, % |
le0.60 |
le0.80 |
le1.00 |
|
pH benefit |
six.-8. |
6.-eight. |
four.-6. |
|
Dampness articles, % |
le1.00 |
le1.00 |
le1.00 |
|
H2Otwo insoluble, % |
le0.70 |
le0.70 |
le1.fifty |
|
Look |
Pale brown or brown-black powder |
||
(two)Passivated Amorphous Elemental Boron
|
Item |
Index |
|
Overall Boron (B) content material, % |
ge90. |
|
Water soluble Boron (B) content % |
le1.00 |
|
pH worth |
six.-eight. |
|
Dampness content material, % |
le1.00 |
|
H2Otwo insoluble, % |
le1.fifty |
|
Particle dimensions (dfifty), microm |
2.00~3.00 |
|
Visual appeal |
Pale brown or brown-black powder |
three. Software: Boron has been utilised mostly in metallurgy, electronics, drugs, ceramics, nuclear sector and chemical sector and so on. Boron has also been utilised in the kinds of compounds or as an additive in alloys. In addition, it can be utilized as the fuel scavenger in metallurgy of some EPT alloy and smelted steels, the ignitor in the electrical industry, the manage rod of atomic reactor, and the high-strength fuels for ducted strong rocket. Boron is the EPTant raw substance for producing high-purity halogenated boron and for a variety of borides. Some exceptional noble metals can be substituted by boron. Boron and its compounds can also be utilized as the catalysts of some organic chemical reactions.
four. EPT instructions: ToXiHu (West Lake) Dis.c by ingestion and inhalation. The damage of central anxious program, abdomen and intestinal stimulation, ig. boron poisoning, are caused by inhalation of boron. Eyes bear sligEPT stimulation as nicely. Be managed with rubber gloves, a respirator and eye defense by wearing protective garments.
five EPT: Vacuum-EPT. Aluminum foil bag with plastic bag, one kg internet each.
6. Storage: Stored at cool, dry and ventilate place. The shelf life is twelve months after made day. It is still offered if the retest benefits of the properties are experienced soon after expired day
seven. Transportation:Keep away from rain, sunligEPT and crash. Do not mix with powerful oXiHu (West Lake) Dis.dizer.
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