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Stannic oxide

Description References

Stannic oxide

CAS No.18282-10-5
Chemical Name:Stannic oxide
CBNumber:CB8130822
Molecular Formula:O2Sn
Formula Weight:150.71
MOL File:18282-10-5.mol

Stannic oxide Property

Melting point 1127 °C
Boiling point 1800-900°C
Density 6.95 g/mL at 25 °C(lit.)
bulk density 500-600kg/m3
refractive index 1.9968
Flash point 1800-1900°C
storage temp. Store at +5°C to +30°C.
solubility Soluble in hot concentrated alkalis, and concentrated acids. Insoluble in alcohol.
form nanopowder
color White to slightly gray
Specific Gravity 7
PH 4-5 (50g/l, H2O, 20℃)(slurry)
Water Solubility INSOLUBLE
Hydrolytic Sensitivity 6: forms irreversible hydrate
Crystal Structure Rutile type
crystal system square
Sublimation 1800-1900 ºC
Merck 14,8778
Space group P42/mnm
Lattice constant
a/nm b/nm c/nm α/o β/o γ/o V/nm3
0.4737 0.4737 0.3185 90 90 90 0.0715
Exposure limits ACGIH: TWA 2 mg/m3
NIOSH: IDLH 100 mg/m3; TWA 2 mg/m3
Stability Stable.
CAS DataBase Reference 18282-10-5(CAS DataBase Reference)
EWG's Food Scores 2
FDA UNII KM7N50LOS6
EPA Substance Registry System Tin dioxide (18282-10-5)
UNSPSC Code 12352303
NACRES NA.23

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.4737	0.4737	0.3185	90	90	90	0.0715

Safety

OEB :B
OEL :TWA: 2 mg/m3
HS Code :2825908590
Hazardous Substances Data :18282-10-5(Hazardous Substances Data)
Toxicity :LD50 orally in Rabbit: > 20000 mg/kg

NFPA 704:

	0
1		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H302-H317-H319-H372
Precautionary statements P260-P280-P301+P312-P302+P352-P305+P351+P338-P314

Stannic oxide Price More Price(32)

Brand: Sigma-Aldrich(India)
Product number: 549657
Product name : Tin(IV) oxide
Purity: nanopowder, ≤100?nm avg. part. size
Packaging: 5G
Price: ₹8627.53
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 549657
Product name : Tin(IV) oxide
Purity: nanopowder, ≤100?nm avg. part. size
Packaging: 25G
Price: ₹22992.3
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 244651
Product name : Tin(IV) oxide
Purity: ?325?mesh, 99.9% trace metals basis
Packaging: 100G
Price: ₹4102.68
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 244651
Product name : Tin(IV) oxide
Purity: ?325?mesh, 99.9% trace metals basis
Packaging: 500G
Price: ₹13942.6
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 204714
Product name : Tin(IV) oxide
Purity: ≥99.99% trace metals basis
Packaging: 5G
Price: ₹11193.05
Updated: 2022/06/14
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Stannic oxide Chemical Properties,Usage,Production

Description Stannic oxide, also known as tin oxide, is an inorganic compound consisted of tin and oxygen, which is widely applied in various fields. The dominant usage of stannic oxide is to serve as a precursor in the production of other, especially trivalent, tin compounds or salts. It is also commonly employed as an opacifier in glazes. The addition of larger amounts of stannic oxide enhances the refractoriness of glazes and turns it from transparent to an opaque white. Stannic oxide is also used in the production of customized glass by giving transparent glass an opaque, porcelain-like, opaque appearance. It has proved to be a highly effective polishing material for glass and quarried rock, such as marble, granite and quartz. Besides, stannous oxide can be used for llumination with UV light in combination with cerium oxide in ceramic form. It also has a broad range of applications in other areas, such as semiconductors, photovoltaic materials, solar cells, lithium ion batteries, photocatalysts, and as gas-sensing agents in solid-state detectors.
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
Chemical Properties white or off-white powder
Physical properties White or grayish powder; tetragonal crystals; density 6.85 g/cm³; refractive index 2.006; Mohs hardness 6.5; melts at 1,630°C; insoluble in water; soluble in hot concentrated alkalies.
Uses Stannic oxide (SnO2) is a whitish powder used as a ceramic glaze and polishing agent.
Uses It is used to detect carbon monoxide. Used in ceramic glazes and colors, putty, perfume preparations, textiles, polishing powder for steel, and the manufacture of special glasses. Stannic oxide is also used in making white patinas.
Uses Polishing glass and metals; manufacture of milk-colored, ruby and alabaster glass, enamels, pottery, putty; mordant in printing and dyeing fabrics; in fingernail polishes.
Definition ChEBI: Tin dioxide is a tin oxide compound consisting of tin(IV) covalently bound to two oxygen atoms.
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).
General Description White or off-white crystalline solid or powder. Mp 1127°C, Sublimes: 1800-1900°C, density: 6.95 g cm-3. Insoluble in water. Soluble in concentrated sulfuric acid, hydrochloric acid. Occurs in nature as the mineral cassiterite. Used as a catalyst, in putty, as a polishing powder for steel and glass, in ceramic glazes and colors. Flowers of tin refers to the material collected as the result of condensation after sublimation.
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.
Advantages Stannic oxide, as the material of the electron transport layer, has good electronic conductivity and can effectively promote the rapid transmission of photogenerated electrons to the electrode.