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. Actual physical and chemical qualities:
1.one Elementary image: B
one.two Atomic weight: ten.81 (on 1979 global atomic fat)
1.three Melting position: 2300 plusmn2 ordmC
1.4 Sublimation temperature: 2550 ordmC
one.5 Density: 2.34-two.37 g/cm3
1.6 Solubility: Insoluble in h2o, ethanol, ethyl ether and hydrochloric acid. Dissolved in cold concentrated basic remedy and made Htwo at the exact same time. It can be oXiHu (West Lake) Dis.dized by concentrated sulfuric acid or nitric acid and produce boric acid.
one.seven Homes: It is tasteless and odorless. In the periodic table of factors, boron is in between steel component sequence and non-metallic aspect sequence. Boron has numerous attributes, such as, strong electronegative, low atomic radius, and centralized nuclear charge, consequently, the chemical houses of boron are comparatively lively. The non-metal property of boron is similar to that of silicon. At high temperature, boron can respond with oxygen, nitrogen, sulfur, halogen or carbon, and many others. Boron is stable at normal temperature, but it will be oXiHu (West Lake) Dis.dized when heated to three hundred ordmC and burned if heated to 700 ordmC. . Boron can be merged right with a lot of types of metals to sort metal boride.
2. Technical indexes:
(1)Amorphous Elemental Boron
|
Item |
1st grade |
twond quality |
threerd grade |
|
Complete Boron(B) articles, % |
ge95. |
ge92. |
ge90. |
|
Drinking water soluble Boron(B) content, % |
le0.60 |
le0.80 |
le1.00 |
|
pH benefit |
6.-8. |
6.-8. |
four.-six. |
|
Dampness material, % |
le1.00 |
le1.00 |
le1.00 |
|
HtwoO2 insoluble, % |
le0.70 |
le0.70 |
le1.fifty |
|
Appearance |
Pale brown or brown-black powder |
||
(2)Passivated Amorphous Elemental Boron
|
Product |
Index |
|
Whole Boron (B) articles, % |
ge90. |
|
Drinking water soluble Boron (B) content material % |
le1.00 |
|
pH worth |
six.-8. |
|
Dampness material, % |
le1.00 |
|
HtwoO2 insoluble, % |
le1.50 |
|
Particle dimensions (dfifty), microm |
two.00~three.00 |
|
Appearance |
Pale brown or brown-black powder |
three. Application: Boron has been utilised mostly in metallurgy, electronics, drugs, ceramics, nuclear business and chemical business and so forth. Boron has also been utilised in the forms of compounds or as an additive in alloys. In addition, it can be utilised as the gas scavenger in metallurgy of some EPT alloy and smelted steels, the ignitor in the electric sector, the manage rod of atomic reactor, and the large-power fuels for ducted sound rocket. Boron is the EPTant raw substance for producing substantial-purity halogenated boron and for a variety of borides. Some uncommon noble metals can be substituted by boron. Boron and its compounds can also be utilized as the catalysts of some organic and natural chemical reactions.
4. EPT directions: ToXiHu (West Lake) Dis.c by ingestion and inhalation. The hurt of central anxious method, stomach and intestinal stimulation, ig. boron poisoning, are triggered by inhalation of boron. Eyes bear sligEPT stimulation as effectively. Be handled with rubber gloves, a respirator and eye protection by putting on protective apparel.
5 EPT: Vacuum-EPT. Aluminum foil bag with plastic bag, one kg net each and every.
six. Storage: Stored at amazing, dry and ventilate location. The shelf lifestyle is twelve months after created day. It is still offered if the retest benefits of the qualities are competent following expired day
seven. Transportation:Keep away from rain, sunligEPT and crash. Do not combine with sturdy oXiHu (West Lake) Dis.dizer.
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