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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, it is a semiconductor with band gap 2.2 eV. [ 5 ] It occurs naturally as the rare mineral berndtite .
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/100 ml), unless shown otherwise. The substances are listed in alphabetical order.
Tin resists corrosion from water, ... chlorine reacts with tin metal to give SnCl 4 whereas the reaction of hydrochloric acid and tin ... tin(II) sulfide and tin ...
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 ...
Tin(II) hydroxide, Sn(OH) 2, also known as stannous hydroxide, is an inorganic compound tin(II). The only related material for which definitive information is available is the oxy hydroxide Sn 6 O 4 (OH) 4, but other related materials are claimed. They are all white solids that are insoluble in water.