:Cadmium stearate
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| ImageFile =Cadmium stearate.svg
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| IUPACName = Cadmium dioctadecanoate
| OtherNames = Cadmium distearate; Cadmium(II) stearate; Cadmium(II) dioctadecanoate
|Section1={{Chembox Identifiers
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| CASNo = 2223-93-0
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| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = GBI2ILV46J
| EINECS = 218-743-6
| PubChem = 16681
| ChemSpiderID = 15818
| SMILES = [Cd+2].[O-]C(=O)CCCCCCCCCCCCCCCCC.[O-]C(=O)CCCCCCCCCCCCCCCCC
| InChI = InChI=1S/2C18H36O2.Cd/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2
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|Section2={{Chembox Properties
| C=36 | H=70 | Cd=1 | O=4
| Appearance = White powder
| Density = 1.80 g/cm3
| MeltingPtC = 134
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|Section3={{Chembox Structure
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|Section4={{Chembox Thermochemistry
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|Section7={{Chembox Hazards
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| NFPA-H = 4
| NFPA-F = 0
| NFPA-R = 0
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| REL = Ca{{PGCH|0087}}
| PEL = [1910.1027] TWA 0.005 mg/m3 (as Cd)
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|Section8={{Chembox Related
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Cadmium stearate is a salt with the formula Cd(O2CC17H35)2. Classified as a metallic soap, this a white solid is used as a lubricant and as a heat- and light-stabilizer in polyvinyl chloride. The use of cadmium stearate is being phased out because of its toxicity.
Synthesis
The compound is produced by the reaction of cadmium chloride with sodium stearate or heating stearic acid and cadmium oxide or hydroxide.{{Ullmann|doi=10.1002/14356007.a16_361|title=Metallic Soaps|year=2001|last1 =Nora|first1=Angelo|last2=Szczepanek|first2=Alfred|last3=Koenen|first3=Gunther}}
Also, an exchange reaction between cadmium sulfate and sodium stearate:
:{{chem2 | CdSO4 + 2 NaC18H35O2 -> Cd(C18H35O2)2↓ + Na2SO4 }}
Safety
Like other cadmium compounds, cadmium stearate is toxic.{{Citation| publisher = Government Printing Office | title = 40 C.F.R.: Appendix A to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities | url = http://edocket.access.gpo.gov/cfr_2008/julqtr/pdf/40cfr355AppA.pdf | edition = July 1, 2008 | access-date = October 29, 2011 | archive-url = https://web.archive.org/web/20120225051612/http://edocket.access.gpo.gov/cfr_2008/julqtr/pdf/40cfr355AppA.pdf | archive-date = February 25, 2012 | url-status = dead }} Cadmium stearate is also carcinogen.[http://www.nj.gov/health/eoh/rtkweb/documents/fs/2201.pdf Cadmium stearate. MSDS]