Chemical formula: S. Black-gray non-metallic. It dissolves in concentrated sulfuric or chloroform. Purity>99% Sizes of the particles are 200, 100, or 325 mesh.

HTML3_ HTML3_ The chemical formula can be used to describe HTML3_ HTML3_ . Selenium metallic dust is dark gray nonmetal. You can dissolve it in carbon disulfide, concentrated sulfuric acids, and chloroform. Selenium metallic dust comes in both granules as well as powder forms. It is uniform in appearance and contains no impurities or soil.

Seenium can be described as a chemical elements with symbol Se. Its anatomic numbers are 34 and 34. While it's nonmetal, it's not considered a metal element. It can be found between sulfur and tellurium on the periodic tables. Selenium may be found in metallic sulfore. This replaces part of the role played by sulfur. Selenium is sometimes also sold commercially. These ores are often refined to make selenium. While it is possible to get selenium compounds, it is not common to find pure selenium. The main two uses of selenium today are glassmaking and pigments. Selenium can also be used in photovoltaic cell. The majority of electronic devices' applications are no longer relevant. Instead, silicon-based semiconductors have replaced them. Selenium can be still used for making one type of fluorescent light-emitting diodes and many DC surge protectors.

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While trace amounts of the mineral are necessary for many functions within our cells, small quantities can lead to toxic reactions. This could lead to selenium poisoning. Many multivitamins contain selenium, which could be very dangerous. You can also find selenium in baby formula or other supplements.

Se Powder of Selenium Se.CAS 77782–49-2
The amorphous form, red powder, is black when you stand. You can heat it to form vitreous and colloidal forms. It melts at 217degC. After melting at 41°C, it turns amorphous to harden to 209°C. It cannot be found in either the pure or natural form of any ore compounds. Liquid nitric and liquid nitric are the alkalies which make it dissolve. You can use it to create binary alloys, such as zinc, lead, or silver. It's very toxic. Important nutritional factor.

How Did Selenium Pulver Se Develop?
Selenium, one of the few elements that isn't found in this group, can not be grown at home. Anode for anode electrolytic anode is made of nickel and selenium. Anode for copper electrolytic can be purified by a number of techniques, such as high-temperature Caustic Oxidation Pressure, dilute Sulfuric Acid Leaching, or low temperature oxygen roasting. Reduced copper and sulfur dioxide remove selenium, tellurium as well as other elements. High levels of sulfur dioxide gas are caused by factors such as pre-roasting, conversion, and maintenance complex power equipment. Both selenium, and tellurium are possible to be extracted with very high purity due to these factors. An acidic solution reduced both Selenium (and Tellurium) to H2O2. Following liquid separation, pH and Selenium could be adjusted. Tellurium was reduced by hydrochloric acid acidic treatment with Na2SO3. Selenium recovery was 98% and 98%, respectively. Both can be purified to as high as 99%.

Two-part se powder
You can use Selenium in many different applications depending on how pure it is. It can be used in many applications, including electronic and glass metalworking. It is used in the production of selenium dioxide as an electrolytic-manganese-melting catalyst. This can also be used to rectify and expose.

Storage selenium powder
Selenium Sepulption’s effectiveness and performance will be affected by wet reunion. The powder should always be sealed in vacuum packaging and kept at cool temperatures. Extreme stress should not be applied to the powder.


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Selenium Powder Properties
Additional Titles	Selenium particles, Selenium microparticles, Selenium micropowder, Selenium Micro- and Micro Powdered Selenium Submicron Powder and Selenium Sub-micron Powder
	7782-49-2
Combination Formula	Se
Motility	78.96
Appearance	Black powder or gray powder
Melting Point	217
Boiling Point	684.9
Density	4.79 g/cm3
Solubility	N/A
Electrical Resistance	106 microhm-cm @ 0 degC
Poisson 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 Modular	GPA: 10
Safety & Health Information
	Danger
Hazard Statements	H301+H331-H373-
Hazard Codes	T
Risk Codes	23/25-33-53
Security statement	20/21-28-45-61
Transport Information	UN3288

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