Strontium hydroxide

Strontium hydroxide

Chembox new
Name = Strontium hydroxide
Section1 = Chembox Identifiers
CASOther = [18480-07-4] (anhydrous)
Section2 = Chembox Properties
Formula = Sr(OH)2
MolarMass = 121.63468 g·mol–1 (anhydrous)
139.64996 g·mol–1 (monohydrate)
265.75692 g·mol–1 (octahydrate)
Appearance = prismatic colourless crystals
Solubility = 1.77 g / 100 mL at 20 °C
MeltingPt = 375°C (anhydrous)
BoilingPt =
pKb = –2.19
Section3 = Chembox Structure
Coordination =
CrystalStruct =
Section7 = Chembox Hazards
ExternalMSDS =
EUClass = Harmful (Xn)
RPhrases = R22 R36 R37 R38
SPhrases =
FlashPt =
Section8 = Chembox Related
OtherAnions = Strontium oxide
Strontium peroxide
OtherCations = Calcium hydroxide
Barium hydroxide

Strontium hydroxide, Sr(OH)2, is a caustic alkali composed of one strontium ion and two hydroxide ions. It is synthesized by combining a strontium salt with a strong base. Sr(OH)2 exists in anhydrous, monohydrate, or octahydrate form.

Preparation

Because Sr(OH)2 is very slightly soluble in water, its preparation can be easily carried out by the addition of a strong base such as NaOH or KOH, drop by drop to a solution of any strontium salt, most commonly Sr(NO3)2 (strontium nitrate). The Sr(OH)2 will precipitate out as a fine white powder. From here, the solution is filtered, and the Sr(OH)2 is washed with cold water and dried. [cite book
last = Brauer
first = Georg
authorlink =
coauthors =
title = Handbook Of Preparative Inorganic Chemistry
publisher = Academic Press
year = 1963
pages = pp 935
url =
doi =
id = ]

Applications

Strontium hydroxide is used chiefly in the refining of beet sugar and as a stabilizer in plastic. It may be used as a source of strontium ions when the chlorine from strontium chloride is undesirable. Strontium hydroxide absorbs carbon dioxide from the air to form strontium carbonate.

afety

Strontium hydroxide is a severe skin, eye and respiratory irritant. It is harmful if swallowed.

References

External links

*ecb
*http://www.chemicalland21.com/industrialchem/inorganic/STRONTIUM%20HYDROXIDE.htm


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Look at other dictionaries:

  • strontium hydroxide — noun : a deliquescent solid Sr(OH)2 that forms a crystalline octahydrate, that dissolves in water to form a decidedly alkaline solution, and that is used chiefly in making soaps and greases and in refining beet sugar and recovering sugar from the …   Useful english dictionary

  • strontium hydroxide — Chem. a white, slightly water soluble powder, Sr(OH)2, or its crystalline octahydrate (strontium hydrate): used chiefly in the refining of beet sugar. Also called strontia. * * * …   Universalium

  • Strontium — (pronEng|ˈstrɒntiəm, ) is a chemical element with the symbol Sr and the atomic number 38. An alkaline earth metal, strontium is a soft silver white or yellowish metallic element that is highly reactive chemically. The metal turns yellow when… …   Wikipedia

  • Strontium chloride — IUPAC name Strontium chloride …   Wikipedia

  • strontium — strontic /stron tik/, adj. /stron shee euhm, sheuhm, tee euhm/, n. Chem. a bivalent, metallic element whose compounds resemble those of calcium, found in nature only in the combined state, as in strontianite: used in fireworks, flares, and tracer …   Universalium

  • Hydroxide — Lewis structure of the hydroxide ion showing three lone pairs on the oxygen atom …   Wikipedia

  • Strontium oxide — Chembox new Name = Strontium oxide ImageFile = Strontium oxide.jpg ImageName = Strontium oxide Section1 = Chembox Identifiers CASNo = 1314 11 0 Section2 = Chembox Properties Formula = SrO MolarMass = 103.600 g/mol Appearance = Density = 5.7 g/cm3 …   Wikipedia

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  • hydroxide — /huy drok suyd, sid/, n. a chemical compound containing the hydroxyl group. [1820 30; HYDR 2 + OXIDE] * * * Any compound with one or more functional groups made up of one atom each of hydrogen and oxygen, bonded together and acting as the… …   Universalium

  • Magnesium hydroxide — IUPAC name Magnesium hydroxide …   Wikipedia

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