Amorphous Boron B Powder CAS 7440-42-8

Item No.: Tr-B
Boron powder is black or silver gray solid. Crystal boron is black, second only to diamond in hardness, and has a relatively brittle texture.
Particle size: 0.8-5um
Amorphous Boron Powder Properties

Properties of Amorphous Boron B Powder :
Elemental boron CAS 7440-42-8 is a black or dark brown powder. When it is oxidized in the air, it will prevent the internal boron from continuing to oxidize due to the formation of a boron trioxide film. It can react with fluorine at normal temperature and is not corroded by hydrochloric acid and hydrofluoric acid aqueous solution. Boron is insoluble in water, powdered boron is soluble in boiling nitric acid and sulfuric acid, and most molten metals such as copper, iron, manganese, aluminum, and calcium.

Amorphous Boron Powder MF:B

 Amorphous Boron Powder MW:10.81

 Amorphous Boron Powder Melting point:2300 ℃ ±2  ℃

 Amorphous Boron Powder Sublimation temperature:2550  ℃

 Amorphous Boron Powder Relative density:2.34-2.37

 Amorphous Boron Powder Solubility: Insoluble in water, hydrochloric acid, ethanol and ether,  soluble in cold 

 concentrated alkali solution decompose into hydrogen, by concentrated sulfuric acid, nitric acid oxidation into boric acid.


 Product features of Amorphous Boron powder:

  The quality is stable and reliable.
  This product can be in stored for a long time.
  According to user requirements, processing customized different particle size of products.

Technical Parameter of Amorphous Boron B powder :

Chemical Composition B P S Si Fe Mg O C
Test Result (%) 95 0.05 0.02 0.11 0.15 0.21 0.15 0.17


 Application of Amorphous Boron B powder:

  It is mainly applied to metallurgy,medicine,ceram,nuke industry,chemical industry etc.

  It can be used in alloy in the form of compounds or as additives.

  It is an important raw material for making a variety of boride.

  It also can be used as a catalyst of organic chemical reactions.

Storage Condition of Amorphous Boron B powder :
Damp reunion will affect B powder dispersion performance and using effects, therefore, amorphous boron B powder should be sealed in vacuum packing and stored in cool and dry room, the amorphous boron B powder can not be exposure to air. In addition, the amorphous boron B powder should be avoided under stress.

Packing & Shipping of Amorphous Boron B powder :
We have many different kinds of packing which depends on the amorphous boron B powder quantity.
Amorphous boron B powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Amorphous boron B powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.


Amorphous Boron Powder Properties

Other Names Boron Powder, amorphous boron
CAS No. 7440-42-8
Compound Formula B
Molecular Weight 10.811
Appearance Dark Brown
Melting Point 2079 °C
Boiling Point 2550 °C
Density 2.34 g/cm3
Solubility in H2O N/A
Electrical Resistivity 1.8 x 1012 microhm-cm @ 0 °C
Poisson's Ratio N/A
Specific Heat 0.245 Cal/g/K @ 25 °C
Thermal Conductivity 0.274 W/cm/K @ 298.2 K
Thermal Expansion 5–7 µm·m-1·K-1 @ 25 °C
Young's Modulus N/A

Amorphous Boron Powder Health & Safety Information

Signal Word Warning
Hazard Statements H228-H302+H332-H335
Flash Point Not applicable
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
RTECS Number ED7350000
Transport Information DOT
WGK Germany NWG
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