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Tin(II) sulfide is an inorganic compound with the chemical formula is SnS. A black or brown solid, it occurs as the rare mineral herzenbergite (α-SnS).It is insoluble in water but dissolves with degradation in concentrated hydrochloric acid .
For example, reaction with sodium sulfide produces the brown/black tin(II) sulfide: SnCl 2 (aq) + Na 2 S (aq) → SnS (s) + 2 NaCl (aq) If alkali is added to a solution of SnCl 2, a white precipitate of hydrated tin(II) oxide forms initially; this then dissolves in excess base to form a stannite salt such as sodium stannite:
Tin(IV) sulfide is a compound with the formula SnS2. A brown, water-insoluble solid, ... A simplified equation for this depolymerization reaction is: SnS
Sodium sulfide (or hydrogen sulfide and base). Illustrated by the selective reduction of dinitrophenol to the nitroaminophenol. [11] Tin(II) chloride [12] Titanium(III) chloride; Samarium [13] Hydroiodic acid [14] Metal hydrides are typically not used to reduce aryl nitro compounds to anilines because they tend to produce azo compounds. (See below)
Tin(II) oxide burning. Blue-black SnO can be produced by heating the tin(II) oxide hydrate, SnO·xH 2 O (x<1) precipitated when a tin(II) salt is reacted with an alkali hydroxide such as NaOH. [4] Metastable, red SnO can be prepared by gentle heating of the precipitate produced by the action of aqueous ammonia on a tin(II) salt. [4]
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The reaction from tin(IV) oxide with hot carbon monoxide is practiced on a large scale as this carbothermal reduction is used to obtain tin metal from its ores: SnO 2 + 2 CO → Sn + 2 CO 2. Some other reactions relevant to purifying tin from its ores are: [13] SnO 2 + MgCl 2 + CO → SnCl 2 + MgO +CO 2 4 SnO 2 + 6 FeCl 2 → 2 SnCl 2 + 2 SnCl ...
Sulfides of tin exist in both the +2 and +4 oxidation states: tin(II) sulfide and tin(IV) sulfide (mosaic gold). Ball-and-stick models of the structure of solid stannous chloride ( SnCl 2 ) [ 49 ]