Tin Oxide, (STANNIC), SnO2, 99 %, 500, 1000, 1500, 2500, 5000, GRAMS

Description: Tin (IV) oxide ( DIOXIDE) , STANNIC, SnO2, 99 % , 250, 500, 1500 GRAMS ... This is White TIN OXIDE,.... actually it is off white Tin (IV) oxide, also known by the systematic name stannic oxide in the older notation, is the inorganic compound with the formula SnO2. It is not named tin dioxide because Tin is a Type II Metal, and so is named Tin (IV) Oxide by nomenclature. The mineral form of SnO2 is called cassiterite, and this is the main ore of tin. With many other names (see infobox), this oxide of tin is the most important raw material in tin chemistry. This colourless, diamagnetic solid is amphoteric. It crystallises with the rutile structure, wherein the tin atoms are six coordinate and the oxygen atoms three coordinate. SnO2 is usually regarded as an oxygen-deficient n-type semiconductor. Hydrous forms of SnO2 have been described in the past as stannic acids, although such materials appear to be hydrated particles of SnO2 where the composition reflects the particle size. Tin (IV) Oxide occurs naturally but is purified by reduction to the metal followed by burning tin in air. Annual production is in the range of 10 kilotons. SnO2 is reduced industrially to the metal with carbon in a reverberatory furnace at 1200-1300 °C. Tin (IV) oxide has long been used as an opacifier and as a white colorant in ceramic glazes. This has probably led to the discovery of the pigment lead-tin-yellow, which was produced using tin (IV) oxide as a compound. The use of tin (IV) oxide has been particularly common in glazes for earthenware, sanitaryware and wall tiles; see the articles tin-glazing and Tin-glazed pottery. Tin oxide remains in suspension in vitreous matrix of the fired glazes, and, with its high refractive index being sufficiently different from the matrix, light is scattered, and hence increases the opacity of the glaze. The degree of dissolution increases with the firing temperature, and hence the extent of opacity diminishes.[18] Although dependent on the other constituents the solubility of tin oxide in glaze melts is generally low. Its solubility is increased by Na2O, K2O and B2O3, and reduced by CaO, BaO, ZnO, Al2O3, and to a limited extent PbO. SnO2 has been used as pigment in the manufacture of glasses, enamels and ceramic glazes. Pure SnO2 gives a milky white colour; other colours are achieved when mixed with other metallic oxides e.g. V2O5 yellow; Cr2O3 pink; and Sb2O5 grey blue. Tin (IV) oxide can be used as a polishing powder, sometimes in mixtures also with lead oxide, for polishing glass, jewelery, marble and silver. Tin (IV) oxide for this use is sometimes called as "putty powder"[13] or "jeweler's putty". SnO2 coatings can be applied using chemical vapor deposition, vapour deposition techniques that employ SnCl4[9] or organotin trihalides e.g. butyltin trichloride as the volatile agent. This technique is used to coat glass bottles with a thin (<0.1 μm) layer of SnO2, which helps to adhere a subsequent, protective polymer coating such as polyethylene to the glass. Thicker layers doped with Sb or F ions are electrically conducting and used in electroluminescent devices. .......................................................................................................................................................................................................................................................................... Testing Policy: Testing of raw materials should be an integral part of any process including ceramic or glass making / manufacturing. Upon receipt of any new material, we strongly recommend that you test the material. "Paul Brown Studio Arts and Supplies" . has no control over either the variations that may occur in the natural materials or their application. All products are supplied as is from the manufacturer. No additional processing or technical support is supplied. Therefore, our products are sold with the understanding that the user is solely responsible for determining suitability for any purpose and the results obtained. There are no warranties expressed or implied, regarding the user’s finished product or results. ............................................................................................................................................................................................................................................................................................................................................ Return Policy: Returns are NOT accepted

Price: 50 USD

Location: Bethel, Ohio

End Time: 2024-10-04T21:25:07.000Z

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