• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) Synonyms:

stannic oxide, tin(IV) oxide, tin dioxide, SnO2, stannous oxide, tin(II) oxide, SnO, tin monoxide, tin(II) oxide black, cassiterite, CAS # 21651-19-4 (stannous oxide), CAS # 18282-10-5= (stannic oxide), tin protoxide 

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) Designations:

Chemical Name: Tin oxide

Chemical Formula Options:

a) Tin(II) oxide / Stannous oxide= SnO

b) Tin(IV) oxide / Tin dioxide / Stannic oxide= SnO₂

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) General Description:

a) A powder, off-white in color, produced thermally from high grade tin metal

b) Tin(II) oxide (stannous oxide) with the formula SnO is a compound of tin and oxygen where tin has the oxidation state of +2. There are two forms, a stable blue-black form and a metastable red form.

c) Tin dioxide (stannic oxide) is the inorganic compound with the formula SnO2. 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.

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) Typical Chemical Purities Available:

99.9% to 99.999%

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) Typical Granulations Available:

Targets, tablets, granules, pieces, and powder sized as small as < 1 micron.

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) Typical Physical Constants:

Molar Mass (Stannous oxide)	134.71
RTECS Number	XQ3700000
Density (g/cm3)	~6.45
Specific Gravity	6.6- 6.9
Specific Heat @25°C (cal/g-°C)
Melting Point (°C)	1500- 1630
Boiling Point (°C)	1800- 1900
Surface Area (m2/g)	2-4 to 7-11
Thermal Conductivity @20°C (cal/s-cm-°C)
Mohs Hardness @20°C
Appearance	crystalline solid
Crystallography
Color (Pure tin oxide)	milky white

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) Typical Applications:

Glaze opacifiers, pigments, electronic ceramics, capacitors, special refractories, conductive coatings, chemicals, lapidary and lens polishing.

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) Packaging Options:

Fiber or steel drums and bulk bags

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) TSCA (SARA Title III) Status:

Listed. For further information please call the U.S. Environmental Protection Agency at 1.202.554.1404

• Tin (II) Oxide (Stannous Oxide) / Tin (IV) Oxide (Stannic Oxide) Chemical Abstract Service Numbers:

CAS # 21651-19-4 (Stannous oxide)

CAS # 18282-10-5= (Stannic oxide)

• Tags: stannic oxide, tin(IV) oxide, tin dioxide, SnO2, stannous oxide, tin(II) oxide, SnO, tin monoxide, tin (II) oxide black, cassiterite, CAS # 21651-19-4 (stannous oxide), CAS # 18282-10-5= (stannic oxide), tin protoxide