Boron B CAS No 7440-42-8 Make Ceramic

Passivated / Amorphous Elemental Boron

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

`English alias: Boron

`CAS RN: 7440-forty two-eight

one. Physical and chemical houses:

1.1 Elementary symbol: B

1.two Atomic bodyweight: ten.81 (on 1979 intercontinental atomic weight)

1.3 Melting point: 2300 plusmn2 ordmC

1.4 Sublimation temperature: 2550 ordmC

one.5 Density: two.34-two.37 g/cmthree

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

1.7 Properties: It is tasteless and odorless. In the periodic desk of aspects, boron is among metallic factor collection and non-metallic element sequence. Boron has many qualities, such as, strong electronegative, reduced atomic radius, and centralized nuclear demand, therefore, the chemical houses of boron are comparatively energetic. The non-metal residence of boron is comparable to that of silicon. At substantial temperature, boron can react with oxygen, nitrogen, sulfur, halogen or carbon, and so forth. Boron is stable at regular temperature, but it will be oXiHu (West Lake) Dis.dized when heated to 300 ordmC and burned if heated to seven hundred ordmC. . Boron can be combined immediately with many kinds of metals to type steel boride.

2. Technical indexes:

(1)Amorphous Elemental Boron


1st quality

twond grade

threerd grade

Total Boron(B) material, %




Water soluble Boron(B) content material, %




pH benefit




Humidity articles, %




HtwoOtwo insoluble, %




Visual appeal

Pale brown or brown-black powder

(two)Passivated Amorphous Elemental Boron



Total Boron (B) content material, %


Drinking water soluble Boron (B) content %


pH benefit


Dampness content material, %


H2O2 insoluble, %


Particle dimension (dfifty), microm


Physical appearance

Pale brown or brown-black powder

3. Application: Boron has been employed largely in metallurgy, electronics, drugs, ceramics, nuclear market and chemical business and so forth. Boron has also been utilized in the varieties of compounds or as an additive in alloys. In addition, it can be utilized as the gasoline scavenger in metallurgy of some EPT alloy and smelted steels, the ignitor in the electric industry, the management rod of atomic reactor, and the high-power fuels for ducted solid rocket. Boron is the EPTant raw material for producing higher-purity halogenated boron and for a assortment of borides. Some uncommon noble metals can be substituted by boron. Boron and its compounds can also be utilised as the catalysts of some organic chemical reactions.

4. EPT recommendations: ToXiHu (West Lake) Dis.c by ingestion and inhalation. The damage of central anxious system, belly and intestinal stimulation, ig. boron poisoning, are triggered by inhalation of boron. Eyes bear sligEPT stimulation as properly. Be handled with rubber gloves, a respirator and eye defense by donning protective clothing.

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

6. Storage: Saved at great, dry and ventilate place. The shelf lifestyle is 12 months following produced date. It is nevertheless obtainable if the retest results of the properties are qualified soon after expired day

7. Transportation:Stay away from rain, sunligEPT and crash. Do not blend with powerful oXiHu (West Lake) Dis.dizer.

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Boron B CAS No 7440-42-8 Make Ceramic

Boron B CAS No 7440-42-8 Make Ceramic