Strontium oxalate

Last updated
Strontium oxalate
Strontium oxalate.svg
Names
IUPAC name
Strontium Oxalate
Identifiers
  • 814-95-9 Yes check.svgY
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.011.286 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 212-415-6
PubChem CID
UNII
  • [Sr+2].[O-]C(=O)C([O-])=O
Properties
SrC2O4
Molar mass 175.64 g/mol
Density 2.08 g/cm3
Boiling point Decomposes above 200 °C (392 °F; 473 K)
Insoluble in water
Hazards
Main hazards Skin and eye irritant. Inhaling the compound will irritate mucous membrane in the lungs.
Safety data sheet
NFPA 704 (fire diamond)
1
0
1
Related compounds
Related compounds
Praseodymium oxalate
Magnesium oxalate
Barium oxalate
Potassium oxalate
Beryllium oxalate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Strontium oxalate is a compound with the chemical formula SrC2O4. Strontium oxalate can exist either in a hydrated form (SrC2O4nH2O) or as the acidic salt of strontium oxalate (SrC2O4mH2C2O4nH2O). [1]

Use in pyrotechnics

With the addition of heat, strontium oxalate will decompose based on the following reaction: [2]

SrC2O4 → SrO + CO2 + CO

Strontium oxalate is a good agent for use in pyrotechnics since it decomposes readily with the addition of heat. When it decomposes into strontium oxide, it will produce a red color. Since this reaction produces carbon monoxide, which can undergo a further reduction with magnesium oxide, strontium oxalate is an excellent red color producing agent in the presence of magnesium. If it is not in the presence of magnesium, strontium carbonate has been found to be a better option to produce an even greater effect.

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Hypochlorite Ion

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Sodium oxalate Chemical compound

Sodium oxalate, or disodium oxalate, is the sodium salt of oxalic acid with the formula Na2C2O4. It is a white, crystalline, odorless solid, that decomposes above 290 °C.

Samarium(III) oxide Chemical compound

Samarium(III) oxide (Sm2O3) is a chemical compound. Samarium oxide readily forms on the surface of samarium metal under humid conditions or temperatures in excess of 150°C in dry air. Similar to the metal, iron, this oxide layer spalls off the surface of the metal, exposing more metal to continue the reaction. The oxide is commonly white to off yellow in color and is often encountered as a highly fine dust like powder.

Ammonium dichromate Chemical compound

Ammonium dichromate is an inorganic compound with the formula (NH4)2Cr2O7. In this compound, as in all chromates and dichromates, chromium is in a +6 oxidation state, commonly known as hexavalent chromium. It is a salt consisting of ammonium ions and dichromate ions.

A pyrotechnic composition is a substance or mixture of substances designed to produce an effect by heat, light, sound, gas/smoke or a combination of these, as a result of non-detonative self-sustaining exothermic chemical reactions. Pyrotechnic substances do not rely on oxygen from external sources to sustain the reaction.

Barium oxalate Chemical compound

Barium oxalate (BaC2O4), a barium salt of oxalic acid, is a white odorless powder that is sometimes used as a green pyrotechnic colorant generally in specialized pyrotechnic compositions containing magnesium metal powder. Flame color is rich and vivid without additional chlorine donors. Such compositions burn rate is satisfied without commonly used oxidizers as nitrates, chlorates and perchlorates.

Strontium carbonate Chemical compound

Strontium carbonate (SrCO3) is the carbonate salt of strontium that has the appearance of a white or grey powder. It occurs in nature as the mineral strontianite.

Magnesium oxalate Magnesium compound

Magnesium oxalate is an organic compound comprising a magnesium cation with a 2+ charge bonded to an oxalate anion. It has the chemical formula MgC2O4. Magnesium oxalate is a white solid that comes in two forms: an anhydrous form and a dihydrate form where two water molecules are complexed with the structure. Both forms are practically insoluble in water and are insoluble in organic solutions.

Lithium oxalate Chemical compound

Lithium oxalate is an inorganic compound, a salt of lithium metal and oxalic acid with the chemical formula C
2
Li
2
O
4
. Lithium oxalate is highly insoluble in water and converts to the oxide when heated.

References

  1. Knaepen, E. "Preparation and Thermal Decomposition of Various Forms of Strontium Oxalate". Thermochimica Acta 284.1 (1996): 213-27.
  2. Kosanke, K. "Chemical Components of Fireworks Compositions". Pyrotechnic Chemistry. Whitewater, CO: Journal of Pyrotechnics, 2004. 1-11.