Zinc Sulfide ZnS Product Structure
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Overview of Zinc Sulfide ZnS Products
Zinc sulfide ZnS is an inorganic compound with the chemical formula ZnS. Zinc sulfide is white to pale yellow or pale yellow powder. It gets darker when exposed to light. Stable in dry air, gradually oxidized to zinc sulfate in humid air or when it contains moisture. Soluble in dilute inorganic acid, soluble in alkali, insoluble in water.
Zinc sulfide ZnS, exists in two main crystal types, and this duality is often a prominent example of a polymorphic type. In each form, the coordination geometry of Zn and S is tetrahedral. The more stable cubic form is also known as sphalerite. The hexagonal form is known as the mineral wurtzite, although it can also be produced synthetically. The transformation from sphalerite to wurtzite occurs at approximately 1020°C. Tetragonal is also known as a very rare mineral known as Lithium Manganese Ore with the molecular formula (Zn, Hg)S.
Application of Zinc Sulfide ZnS Products
Zinc sulfide ZnS is mainly used in paints and plastics in chemical production. Due to its white opacity, it is insoluble in water, organic solvents, weak acids and weak bases and becomes an important pigment in paints. Zinc sulfide is now the second most important pigment in the United States after titanium dioxide, but continues to play an important role in European industry.
As a bulk material, the melting point of zinc sulfide ZnS is 1650 ℃, the Mohs hardness of 98% commercial grade zinc sulfide is 3.0, and the refractive index is 2.37. Due to its high index of refraction and abrasion resistance, zinc sulfide ZnS pigments, wax paper and metal plates coated with very thin layers in the device have high hiding power.
Zinc sulfide ZnS is easy to disperse and not easy to agglomerate. It is neutral white with good optical properties. Commonly used as a component of thermosets, thermoplastics, reinforced glass fibers, flame retardants, elastomers and dispersants.
Zinc sulfide with a suitable activator added in small amounts of PPM has a strong phosphorescence (described by Nikola Tesla in 1893) and is currently used in many applications, from cathode ray tubes to X-ray screens to glow-in-the-dark products. When silver is used as the activator, the resulting color is bright blue with a maximum size of 450 nanometers. The use of manganese produces an orange-red color around 590 nanometers. The copper glowed for a long time, glowing with a familiar green glow. Copper-doped zinc sulfide ("ZnS plus Cu") is also used in electroluminescent panels. It also exhibits phosphorescence due to impurities exposed to blue or ultraviolet light.
Zinc sulfide is also used as an infrared optical material, transmitting from visible wavelengths to just above 12 microns. It can be used flat as an optical window or molded into a lens. It is made by synthesizing hydrogen sulfide gas and zinc vapor on a microchip, and is sold as FLIR grade (forward looking infrared), with zinc sulfide in a cream-yellow, opaque form. This material can be converted into a transparent form called Cleartran (trademark) under hot isostatic pressing (HIPed). An early commercial form was marketed as IRTRAN-2, but that name is now obsolete.
Zinc sulfide is a common pigment sometimes called Sachtolith. Zinc sulfide combines with barium sulfate to form lithopone.
Fine ZnS powder is an efficient photocatalyst to generate hydrogen from water under illumination. Sulfur vacancies were introduced in the synthesis of zinc sulfide. This gradually turns the white-yellow ZnS into a brown powder and enhances the photocatalytic activity by enhancing light absorption.
Both sphalerite and wurtzite are intrinsically wide-bandgap semiconductors. These are typical II-VI semiconductors, using structures associated with many other semiconductors, such as gallium arsenide. The band gap of the cubic form of ZnS is about 3.54 EV at 300 Kelvin, but the band gap of the hexagonal form is about 3.91 EV. ZnS can be doped as an n-type or p-type semiconductor.
Zinc sulfide ZnS product price
The price of zinc sulfide ZnS products will vary randomly due to factors such as production costs, transportation costs, international conditions, exchange rates, and market supply and demand of zinc sulfide ZnS products. Tanki New Materials Co., Ltd. aims to help industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for Zinc Sulfide ZnS products, please feel free to send an inquiry to get the latest Zinc Sulfide ZnS product prices.
Supplier of Zinc Sulfide ZnS Products
As a global supplier of zinc sulfide ZnS products, Tanki New Materials Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineered materials. The company has successfully developed a series of powder materials (molybdenum disulfide, tungsten sulfide, bismuth sulfide, etc.) high-purity targets, functional ceramics and structural devices, and provides OEM services.
|Zinc Sulfide Properties|
|Other Names||ZnS powder, zinc sulphide, zinc sulfide phosphor|
|Appearance||White to off-white Powder|
|Melting Point||1830 °C|
|Solubility in H2O||N/A|
|Specific Heat||520 J/kg-K|
|Thermal Conductivity|| 27 W/m-K|
|Thermal Expansion||6.5 µm/m-K|
|Young's Modulus||75 GPa|
|Zinc Sulfide Health & Safety Information|
|Transport Information||NONH for all modes of transport|
With Russia taking the lead on Poland and Bulgaria at the end of last month, there appears to be a growing sense of compromise within the EU over whether to accept Moscow's proposed rouble settlement order.
Italy's prime minister said recently that European companies would be able to buy gas in roubles without violating sanctions. This apparently ignores the guidance of hardliners in the EU to "fight to the end".
For weeks, European companies have been trying to find ways to meet Russia's payment demands for the rouble while maintaining vital gas supplies without violating sanctions against Moscow.
Late last month, European Commission President Von der Leyen said operating under the mechanism would violate sanctions and asked European companies not to bow to Russian demands. However, the EU has yet to issue more rigorous written guidelines on how companies should pay Gazprom.
The Italian prime minister said recently, "There is no official announcement from the European Union about what ruble settlement means for sanctions violations, and no one has said whether ruble payments violate sanctions or not. It's a grey area."
"In fact, most gas importers are already opening rouble accounts for deals with Gazprom,"
He also used German companies as a shield. He said Germany's largest gas importer had already paid in rubles. "In fact, we saw evidence yesterday that the largest gas importer in Germany has already paid in rubles."