18282-10-5

Basic information

• Product Name: Stannic oxide
• Synonyms: TIN DIOXIDE;TIN(+4)OXIDE;TIN(IV) OXIDE;TIN OXIDE;TIN OXIDE, WHITE;c.i.77861;cassiterite[qr];ci77861[qr]
• CAS NO: 18282-10-5
• Molecular Formula: O2Sn
• Molecular Weight: 150.71
• EINECS: 242-159-0
• Product Categories: Inorganics;metal oxide;50: Sn;and Other Ceramics;Anode Materials;Nanoparticles: Oxides;Alternative Energy;Lithium-Ion Batteries;Materials Science;Metal and Ceramic Science;Nanomaterials;Nanopowders and Nanoparticle Dispersions;Nitrides;Oxides;Tin
• Mol File: 18282-10-5.mol
• Article Data: 0

Chemical Properties

• Melting Point: 1127 °C
• Boiling Point: 1800-900°C
• Flash Point: 1800-1900°C
• Appearance: White to slightly gray/nanopowder
• Density: 6.95 g/mL at 25 °C(lit.)
• Refractive Index: 1.9968
• Storage Temp.: Store at +5°C to +30°C.
• Solubility: Soluble in hot concentrated alkalis, and concentrated acids. Ins
• Water Solubility: INSOLUBLE
• Stability: Stable.
• Merck: 14,8778
• CAS DataBase Reference: Stannic oxide(CAS DataBase Reference)
• NIST Chemistry Reference: Stannic oxide(18282-10-5)
• EPA Substance Registry System: Stannic oxide(18282-10-5)

Safety Data

• Safety Statements: 24/25
• RIDADR: UN1993
• RTECS: XQ4000000
• TSCA: Yes
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 18282-10-5(Hazardous Substances Data)

Usage

Description

Stannic oxide, also known as tin oxide, is an inorganic compound consisting of tin and oxygen. It is a white or off-white crystalline solid or powder with a density of 6.95 g/cm3 and a melting point of 1127°C. Stannic oxide is insoluble in water but soluble in concentrated sulfuric acid and hydrochloric acid. It occurs naturally as the mineral cassiterite and has a wide range of applications in various industries.

Uses

1. Used in Ceramic Industry:
Stannic oxide is used as a ceramic glaze and polishing agent for its ability to enhance the refractoriness of glazes and turn them from transparent to an opaque white. It is also used in the production of customized glass, giving transparent glass an opaque, porcelain-like appearance.
2. Used in Glass Manufacturing:
Stannic oxide is used in the manufacture of milk-colored, ruby, and alabaster glass, as well as enamels and pottery. It serves as an opacifier and provides a polished finish to the glass.
3. Used in Metal Polishing:
Stannic oxide is an effective polishing material for glass and quarried rock, such as marble, granite, and quartz. It is also used as a polishing powder for steel and glass.
4. Used in Textiles:
Stannic oxide acts as a mordant in printing and dyeing fabrics, helping to fix the color and improve the durability of the fabric.
5. Used in Perfumery:
It is used in the preparation of perfumes, contributing to the stability and longevity of the fragrance.
6. Used in Semiconductors and Photovoltaic Materials:
Stannic oxide has applications in the production of semiconductors, photovoltaic materials, solar cells, and lithium-ion batteries due to its electrical and optical properties.
7. Used in Photocatalysts:
It is used as a photocatalyst in various chemical reactions, promoting the conversion of light energy into chemical energy.
8. Used in Gas Sensing:
Stannic oxide is used as a gas-sensing agent in solid-state detectors, particularly for detecting carbon monoxide.
9. Used in Special Glasses:
It is used in the manufacture of special glasses, such as those with UV illumination properties when combined with cerium oxide in ceramic form.
10. Used in Putty:
Stannic oxide is used in the production of putty, a malleable substance used for sealing and filling gaps.

References

http://sciencing.com/tin-oxide-uses-8125683.html https://www.alfa.com/zh-cn/catalog/012283/ http://www.azom.com/article.aspx?ArticleID=2358 https://en.wikipedia.org/wiki/Tin(II)_oxide

Preparation

Tin(II) oxide is prepared by heating tin(II) hydroxide. The latter is obtained as a white precipitate by reacting Sn2+ ions with hydroxide ions: Sn2+(aq) + 2OHˉ(aq) → Sn(OH)2 (s) Sn(OH)2 ?→ ?? SnO(s) + H2O(g).

Reactivity Profile

TIN(IV) OXIDE is non-flammable and non-combustible. Reacts vigorously with strong reducing agents. Incompatible with chlorine trifluoride.

Purification Methods

Reflux it repeatedly with fresh HCl until the acid shows no tinge of yellow. The oxide is then dried at 110o.

InChI:InChI=1/2O.Sn/rO2Sn/c1-3-2

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