Cas 7782-49-2 high purity 99.9%-99.999% Selenium Se powder or granules price

Cas 7782-49-2 high purity 99.9%-99.999% Selenium Se powder or granules price Featured Image
  • Cas 7782-49-2 high purity 99.9%-99.999% Selenium Se powder or granules price
  • Cas 7782-49-2 high purity 99.9%-99.999% Selenium Se powder or granules price
  • Cas 7782-49-2 high purity 99.9%-99.999% Selenium Se powder or granules price

Short Description:

Product name: Selenium Se powder

Formula: Se

Purity: 99.9%- 99.999%

Cas No: 7782-49-2

Appearance: black powder

Particle size: 200 mesh


Product Detail

Product Tags

Product Description

Amorphous red powder, becoming black on standing and crystalline on heating; vitreous and colloidal forms may be prepared.

Amorphous form softens at 40 °C and melts at 217 °C. It rarely occurs in its elemental state in nature, or as pure ore compounds.

Specification

Symbol:
Se
CAS
7782-49-2
Atomic Number:
34
Atomic Weight:
78.96
Density:
4.79 gm/cc
Melting Point:
217 oC
Boiling Point:
684.9 oC
Thermal Conductivity:
0.00519 W/cm/K @ 298.2 K
Electrical Resistivity:
106 microhm-cm @ 0 oC
Electronegativity:
2.4 Paulings
Specific Heat:
0.767 Cal/g/K @ 25 oC
Heat of Vaporization:
3.34 K-cal/gm atom at 684.9 oC
Heat of Fusion:
1.22 Cal/gm mole

 

Application

1 Manufacturing:selenium(I) chlorid,Selenium dichloride,Selenides, mercury selenide.

2 Science high technology industry:lead selenide,zinc selenide, copper indium gallium diselenide.

3 Electric:semiconductors,electropositive metals,Tetraselenium tetranitride.

4 Chemistry:Selenols,selenium isotope,Plastics, photographic exposure.

5 Industry application:Glass making,selenium drum, electrostatic photograph,optical instrument.

Our Advantages

Rare-earth-scandium-oxide-with-great-price-2

Service we can provide

1) Formal contract can be signed

2) Confidentiality agreement can be signed

3) Seven days refund guarantee

More important: we can provide not only product, but technology solution service!

FAQ

Are you manufacture or trade?

We are manufacturer, our factory is located in Shandong, but we can also provide one stop purchasing service for you!

Payment terms

T/T(telex transfer), Western Union, MoneyGram, BTC(bitcoin), etc.

Lead time

≤25kg: within three working days after payment received. ＞25kg: one week

Sample

Available, we can provide small free samples for quality evaluation purpose!

Package

1kg per bag fpr samples, 25kg or 50kg per drum, or as you required.

Storage

Store the container tightly closed in a dry, cool and well-ventilated place.

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