High Purity Selenium Se Powder CAS 7782-49-2, 99%

Chemical formula: Se, Selenium powder. Black-gray non-metallic. Soluble in concentrated sulfuric acids, chloroform. Purity>99%
Particle Sizes: 200 mesh, 100 mesh and 325.

Selenium is a chemical formula. Selenium metallic powder is a dark gray, nonmetal. It can be dissolved in concentrated sulfuric acids, chloroform and slightly in carbon disulfide. Selenium metal powder comes in granules or powder form. They have a uniform appearance with no soil or other impurities.

Seenium element , a chemical element that has the symbol Se and anatomic number of 34, is called . The element is nonmetal, but it's not considered a metal. It lies somewhere between tellurium (on the periodic table) and sulfur. Selenium occurs in metallic sulfide ore, which partially replaces sulfur. Selenium can also be used commercially. It is often a side effect of the refining of these ores. While pure selenium is known, it's rare to find selenium compounds. The main commercial uses of selenium in today's world are for glassmaking and pigments. Selenium is used in photovoltaic solar cells. Many of the once-important applications for electronic products are now largely obsoleted by silicon semiconductor devices. Selenium may still be used in one type of fluorescent quantum dots and several DC power surge protectors.

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While trace amounts are essential for cell function in many animals (including humans), selenium, and especially selenium salts, can be toxic even in very small doses. This could lead to selenium poisoning. Many multivitamins contain selenium, which is an important ingredient. Selenium also appears in infant formula and other dietary supplements.

Selenium Se powder CAS 77782-49-2:
The powder is an amorphous form of red, which becomes black upon standing. It can be heated to make colloidal and vitreous forms. It melts at 217°C, softens at 41°C, and becomes amorphous at 209°C. You will rarely find it in its natural element or in pure ore compound form. Concentrated nitric and liquid forms of common alkalies make it soluble. Makes binary alloys, such as with silver, zinc, and lead. It is low in toxic. Essential nutritional factor.

How Is Selenium powder Se Created?
Selenium, a type of sparse elements, is not produced in an independent plant. Anode mud for electrolytic anode contains selenium and nickel. Many methods can be used to purify copper electrolytic anode mud, such as high-temperature caustic oxidation pressure, dilute sulfuric acids leaching, and low-temperature oxygen roasting. Copper reduction and sulfur dioxide reduction reduce selenium, tellurium, and other elements. Pre-roasting, oxidation and high maintenance costs of complicated power equipment are all factors that contribute to high levels of sulfur dioxide gas. This is why the purity and recovery of selenium as well as tellurium is very high. Selenium and Tellurium were both oxidized with H2O2 in an acidic solution. Selenium, tellurium, and pH were adjusted after solid-liquid seperation. Tellurium was reduced under hydrochloric acids acidic treatment by Na2SO3. Selenium recovery was 98% and 98%, respectively. Both can be purified to 99%.

Two-part se powder
You can use Selenium in many different areas, depending on how pure it is. Selenium has many uses, including in glass, metalworking, agricultural, and electronic applications. Selenium is used primarily in the manufacture of selenium dioxide as an electrolytic manganese-melting catalyst. It also has other uses in rectifier and photographic exposure agent.

Storage Selenium Powder Condition:
Selenium Sepulption performance and use effects will be affected by damp reunion. Therefore, vacuum packaging should be used and the powder kept in a cool, dry place. Additionally, Se powder shouldn't be exposed to extreme stress.

Nanotechnology Co. Ltd. (), a global trusted supplier and manufacturer of high-quality chemical materials, is well-known for its 12-year experience providing Nanomaterials such as boride, nitride, graphite, sulfide, 3D printing powders, and others.
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Selenium Powder Properties

Other Titles Selenium particles, Selenium microparticles, Selenium micropowder,
Selenium micron and micro powders
Selenium powder submicron, Selenium powder sub-micron
Compound Formula Se
Molecular Weight 78.96
Appearance Gray powder to black powder
Melting Point 217
Boiling Point 684.9
Density 4.79 g/cm3
Solubility of H2O N/A
Electrical Resistivity 106 microhm-cm @ 0 degC
Poisson's Rate 0.33
Tensile strength N/A
Thermo Conductivity 0.00519W/cm/K @ 289.2 K
Thermal Expansion (25 degC) 37 um*m -1 *K -1
Vickers Hardness N/A
Young's Module 10 GPA

Safety & Health Information

Signal word Danger
Hazard Statements H301+H331-H373-
Hazard Codes T
Risk Codes 23/25-33-53
Safety statements 20/21-28-45-61
Transport Information UN3288

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