English
Factory supply high purity 99.9%-99.999% Selenium Se powder Featured Image
  • Factory supply high purity 99.9%-99.999% Selenium Se powder
  • Factory supply high purity 99.9%-99.999% Selenium Se powder
  • Factory supply high purity 99.9%-99.999% Selenium Se powder

Factory supply high purity 99.9%-99.999% Selenium Se powder

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

Brief introduction

Product name: Selenium Se powder

Formula: Se

Purity: 99.9%- 99.999%

Cas No: 7782-49-2

Appearance: black powder

Particle size: 200 mesh

Characteristic.

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.

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.

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
Our Advantages

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!
Packing & Delivery

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Company Profile

Company Introduction

Shanghai Epoch Material Co., Ltd. is located in the economic center—Shanghai. We always adhere to “Advanced materials, better life” and committee to the Research and Development of technology, to make it used in human beings’ daily life to make our life more better.

Now, we mainly dealing with rare earth materials, nano materials, OLED materials, and other advanced materials. These advanced materials are widely used in chemistry, medicine, biology, OLED display, OLED light, environmental protection, new energy, etc.

For current time, we have two production factories in Shandong Province. It covers a area of 30,000 square meters, and has workers more than 100 persons, of which 10 persons are senior engineers. We have established a production line suitable for research, pilot test, and mass production, and also established two labs, and one testing center. We test each lot of product before delivery to make sure we provide good quality product to our customer.

We welcome customers from worldwide to visit our factory and establish a good cooperation together!

There is a old saying in China that we are more than glad to see friends and customers from all over the world!

Our company has passed through the management system of ISO 9001, and we have our own SOP system for production, sales, and after sales service! Hope we could provide a good and professional service for you!
Marketing Campaign

Welcome all customers from worldwide!
We have customers worldwide, and till now, have establish a good coopperation with sumsung, LG, LV, as well as many other customers as well, and for further info, please contact us!
FAQ
1) 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!
2)Payment terms:T/T(telex transfer), Western Union, MoneyGram, BTC(bitcoin), etc.3)Lead time≤25kg: within three working days after payment received.＞25kg: one week
4)SampleAvailable, we can provide small free samples for quality evaluation purpose!5)Package1kg per bag fpr samples,

25kg or 50kg per drum, or as you required.6)StorageStore the container tightly closed in a dry, cool and well-ventilated place.

  • Previous:
  • Next:
    • Write your message here and send it to us

    Product recommendation

    Hit enter to search or ESC to close