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Tin(II) oxide (stannous oxide) is a compound with the formula SnO. It is composed 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.

Blue-black SnO can be prepared by heating the tin(II) oxide hydrate, SnO.xH2O (x<1) precipitated when a tin(II) salt is reacted with an alkali hydroxide such as NaOH.[3] Metastable, red SnO can be prepared by gentle heating of the precipitate produced by the action of aqueous ammonia on a tin(II) salt.[3] SnO may be prepared as a pure substance in the laboratory, by controlled heating of tin(II) oxalate (stannous oxalate) in the absence of air.[4]SnC2O4 → SnO + CO2 + CO

Tin(II) oxide burns in air with a dim green flame to form SnO2.[3]2 SnO + O2 → 2 SnO2

When heated in an inert atmosphere initially disproportionation occurs giving Sn metal and Sn3O4 which further reacts to give SnO2 and Sn metal.[3]4SnO → Sn3O4 + SnSn3O4 → 2SnO2 + Sn

SnO is amphoteric, dissolving in strong acid to give tin(II) salts and in strong base to give stannites containing Sn(OH)3−. It also dissolves in strong acid solutions to give the ionic complexes Sn(OH2)32+ and Sn(OH)(OH2)2+, and in less acid solutions to give Sn3(OH)42+. Note that anhydrous stannites, e.g. K2Sn2O3, K2SnO2 are also known. SnO is a reducing agent and this appears to its role in the manufacture of so-called "copper ruby glass".

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Related Questions

What is the name of a compound made from tin and oxygen?

There are two such tin oxides: Tin (II) oxide with formula SnO and tin (IV) dioxide, with formula SnO2.


What is the for formula fo Sn1O2?

tin (IV) oxide it is actually Sn2O4 in simplified form.


What is the correct name for this compound SnO?

The correct name for the compound SnO is tin(II) oxide.


What is the old formula for SnO2?

The old formula for SnO2 is stannic oxide. Stannic oxide is a compound made of tin (Sn) and oxygen (O) atoms in a 1:2 ratio.


What is the stock system name of SnO2?

First of all, the correct formula is SnO2, and the Stock name is tin(IV) oxide.


What is the chemical formula for tin 2 and hydroxide?

Tin exists in two compounds with oxygen. These compounds vary because of the different oxidation states of tin. The first compound is tin(II) oxide (Sn2+O2-). The second compound is tin(IV) oxide (Sn4+O22-).


What is the name SnO?

the name of this formula is Tin (II) oxide


What is the chemical formula for tin IV oxide?

It is SnO2Why? Because:Tin has a charge of 4 and Oxygen has a charge of 2. Their charges are switched to make a compound; therefore, the chemical formula would be written as Sn2O4. Then, you have to simplify that so it would be written as SnO2.


Tin II dioxide?

There is no Tin(II) dioxide. It is Tin dioxide (SnO2) or Tin(II) oxide (SnO)


What element is SnO2?

Tin(II) oxide or tin dioxide


What is thel formula for titanium II oxide?

TiO is the formula of titanium (II) oxide


What is the name of SnO4?

The Answer To Your Question Is.... tin (IV) oxide