Stannous hydroxide

Stannous hydroxide

Chembox new
ImageFile =
ImageName =
OtherNames = Tin (II) hydroxide
Section1 = Chembox Identifiers
CASNo = 12026-24-3
Section2 = Chembox Properties
Formula = Sn(OH)2
MolarMass = 152.73 g/mol
Density =
Solvent = other solvents
SolubleOther =
MeltingPt =
BoilingPt =

Stannous hydroxide, Sn(OH)2, is a chemical compound of tin in the +2 oxidation state. Pure Sn(OH)2 is prepared by reacting for example (CH3)3SnOH with SnCl2 in an aprotic solvent:Egon Wiberg, Arnold Frederick Holleman (2001) "Inorganic Chemistry", Elsevier ISBN 0123526515] :2Me3SnOH + SnCl2 → Sn(OH)2 + 2Me3SnClThere had been confusion as it had been believed that Sn(OH)2 was precipitated when a tin(II) salt is reacted with an alkali hydroxide such as NaOH, but this product was determined analytically to be hydrated tin(II) oxide, being either 5SnO.2H2O or 3SnO.H2O, [Structure of Tin(II) "Hydroxide" and Lead(II) "Hydroxide", R. A. Howie & W. Moser, Nature 219, 372 - 373 (27 July 1968); doi|10.1038/219372a0] The structure of pure Sn(OH)2 is not known.

Stannous hydroxide is easily oxidized to stannic acid, Sn(OH)4,since tin is often found in oxidation state +4.

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Tin — is a chemical element with the symbol Sn ( la. stannum) and atomic number 50. This silvery, malleable poor metal that is not easily oxidized in air and resists corrosion, is found in many alloys and is used to coat other metals to prevent… …   Wikipedia

  • stann- — combining form or stanni or stanno Etymology: Late Latin stannum tin more at stannum : relating to or containing tin stannide …   Useful english dictionary

  • Stannite (ion) — The stannite ion is Sn(OH)3−, or similar.There are stannite compounds, for example, sodium stannite, Na2SnO2.See for a list.Stannite ion can be formed by adding strong base to stannous hydroxide.Stannite ion is a strong reducing agent; also, it… …   Wikipedia

  • List of alchemical substances — Alchemical studies produced a number of substances, which were later classified as particular chemical compounds or mixtures of compounds.Many of these terms were in common use into the 20th century.* Aqua Fortis nitric acid, can be formed by 2… …   Wikipedia

  • List of inorganic compounds — Tentative listing related to this page, inorganic compounds by element (presently under construction), as well as . This list is not necessarily complete or up to date ndash; if you see an article that should be here but isn t (or one that… …   Wikipedia

  • Список пищевых добавок E500-E599 — E500 E599 Пищевые добавки. Группа Регуляторы pH и вещества против слёживания . Индекс Название вещества Английское название E500 Карбонаты натрия: (i) Карбонат натрия (ii) Гидрокарбонат натрия (iii) Смесь карбоната и гидрокарбоната натрия …   Википедия

  • Список пищевых добавок E500 — Эта статья или раздел описывает ситуацию применительно лишь к одному региону. Вы можете помочь Википедии, добавив информацию для других стран и регионов. E500 E599 Пищевые до …   Википедия

  • Tin(II) oxide — Chembox new ImageFile = ImageSize = IUPACName = tin(II) oxide OtherNames = stannous oxide Section1 = Chembox Identifiers CASNo = 21651 19 4 PubChem = SMILES = Section2 = Chembox Properties Formula = SnO MolarMass = 134.709 Appearance = black… …   Wikipedia

  • E number — This article is about the food additive codes. For other uses, see E number (disambiguation). E numbers are number codes for food additives that have been assessed for use within the European Union (the E prefix stands for Europe ).[1] They are… …   Wikipedia

  • List of food additives — This is an alphabetical list of food additives. For related lists, see also: List of food additives, Codex Alimentarius and E number.: This article is incomplete. Please help by expanding it. List of food additive types* Acidity regulators * Anti …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”