| Revision as of 16:39, 10 January 2012 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Saving copy of the {{chembox}} taken from revid 466878796 of page Zinc_stearate for the Chem/Drugbox validation project (updated: ''). |
Latest revision as of 19:47, 13 May 2023 edit Discospinster (talk | contribs)Administrators464,719 editsm Reverted edits by 2600:1002:B057:B7F3:703A:C73C:3C47:2240 (talk) to last version by Graeme BartlettTag: Rollback |
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{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid of page ] with values updated to verified values.}} |
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{{chembox |
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{{chembox |
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| Watchedfields = changed |
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| Watchedfields = changed |
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| verifiedrevid = 454731677 |
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| verifiedrevid = 470636902 |
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| Name = Zinc stearate |
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| Name = Zinc stearate |
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| ImageFile = Zinc_stearate.png |
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| ImageFile = Zn4(Stearate)6O.png |
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| ImageSize = 250px |
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| ImageSize = 250px |
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| ImageName = Zinc stearate |
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| ImageName = Zinc stearate |
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| OtherNames = zinc distearate |
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| OtherNames = zinc distearate |
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| IUPACName = zinc octadecanoate |
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| IUPACName = zinc octadecanoate |
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| Section1 = {{Chembox Identifiers |
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|Section1={{Chembox Identifiers |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| CASNo_Ref = {{cascite|correct|CAS}} |
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| CASNo = 557-05-1 |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID = 10705 |
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| ChemSpiderID = 10705 |
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| EC_number = 209-151-9 |
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| PubChem = 11178 |
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| PubChem = 11178 |
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| RTECS = ZH5200000 |
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| UNNumber = 3077 |
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| UNII_Ref = {{fdacite|correct|FDA}} |
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| UNII_Ref = {{fdacite|correct|FDA}} |
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| UNII = H92E6QA4FV |
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| UNII = H92E6QA4FV |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey = XOOUIPVCVHRTMJ-UHFFFAOYSA-L |
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| StdInChIKey = XOOUIPVCVHRTMJ-UHFFFAOYSA-L |
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}} |
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| CASNo_Ref = {{cascite|correct|CAS}} |
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|Section2={{Chembox Properties |
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| CASNo = 557-05-1 |
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| C=36 | H=70 | O=4 | Zn=1 |
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| Appearance = soft, white powder |
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| Section2 = {{Chembox Properties |
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| Odor = slight, characteristic<ref name=PGCH/> |
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| C=36|H=70|O=4|Zn=1 |
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| Density = 1.095 g/cm<sup>3</sup>, solid |
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| Appearance = soft, white powder |
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| Solubility = insoluble |
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| Density = 1.095 g/cm³, solid |
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| Solvent1 = Ethanol |
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| Solubility = insoluble |
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| Solubility1 = insoluble |
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| Solvent = ] |
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| Solvent2 = ether |
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| SolubleOther = insoluble |
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| Solubility2 = insoluble |
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| Solvent = ] |
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| Solvent3 = benzene |
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| SolubleOther = insoluble |
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| Solubility3 = slightly soluble |
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| Solvent = ] |
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| MeltingPtC = 120 to 130 |
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| SolubleOther = slightly soluble |
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| MeltingPt_notes = |
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| MeltingPt = 120–130 °C |
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| BoilingPt = decomposes |
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| BoilingPt = decomposes |
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| Section7 = {{Chembox Hazards |
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|Section7={{Chembox Hazards |
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| FlashPt = 277 °C |
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| FlashPtC = 277 |
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| Autoignition = 420 °C |
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| AutoignitionPtC = 420 |
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| GHS_ref=<ref>{{cite web |title=ZINC stearate |url=https://pubchem.ncbi.nlm.nih.gov/compound/11178#section=Safety-and-Hazards |website=pubchem.ncbi.nlm.nih.gov |language=en}}</ref> |
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| EUClass = not listed |
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| GHSPictograms = {{GHS07}}{{GHS09}} |
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| NFPA-H = 1 |
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| GHSSignalWord = Warning |
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| NFPA-F = 2 |
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| HPhrases = {{H-phrases|335|400|413}} |
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| NFPA-R = 0 |
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| PPhrases = {{P-phrases|261|271|273|304+340|312|391|403+233|405|501}} |
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| NFPA-H = 1 |
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| NFPA-F = 2 |
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| NFPA-R = 0 |
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| PEL = TWA 15 mg/m<sup>3</sup> (total) TWA 5 mg/m<sup>3</sup> (resp)<ref name=PGCH>{{PGCH|0676}}</ref> |
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| IDLH = N.D.<ref name=PGCH/> |
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| REL = TWA 10 mg/m<sup>3</sup> (total) TWA 5 mg/m<sup>3</sup> (resp)<ref name=PGCH/> |
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'''Zinc stearate''' is a "] soap" that is widely used industrially. In this context, soap is used in its formal sense, a metal ] of a ]: in this case ]. It is a white solid that repels water. It is insoluble in polar solvents such as alcohol and ether but soluble in aromatic hydrocarbons (e.g., ]) and chlorinated hydrocarbons when heated. It is the most powerful ] among all metal soaps. It contains no electrolyte and has a hydrophobic effect. Its main application areas are the plastics and rubber industry, where it is used as a releasing agent and lubricant which can be easily incorporated.<ref name=Ullmann>David J. Anneken, Sabine Both, Ralf Christoph, Georg Fieg, Udo Steinberner, Alfred Westfechtel "Fatty Acids" in Ullmann's Encyclopedia of Industrial Chemistry 2006, Wiley-VCH, Weinheim. {{doi|10.1002/14356007.a10_245.pub2}}</ref> |
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Zinc carboxylates, e.g. ], adopt complex formulas, and are not simply dicarboxylates of zinc. Instead the formula for most zinc carboxylates is Zn<sub>4</sub>O(O<sub>2</sub>CR)<sub>6</sub>, consisting of a Zn<sub>4</sub>O<sup>6+</sup> core with carboxylate ligands spanning the edges. |
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==Applications== |
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It is widely used as a ] for the production of many kinds of objects: rubber, polyurethane, polyester processing system, ]. These applications exploit its "non-stick" properties.<ref name=Ullmann/> In cosmetics, zinc stearate is a lubricant and thickening agent used to improve texture.<ref>{{cite web |url=http://cosmeticsinfo.org/ingredient/zinc-stearate |title=Zinc Stearate {{!}} Cosmetics Info |website=cosmeticsinfo.org |url-status=dead |archive-url=https://web.archive.org/web/20130906003118/http://cosmeticsinfo.org/ingredient/zinc-stearate |archive-date=2013-09-06}} </ref> |
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It is an "activator" for accelerated rubber ]. As discovered in the early days of vulcanization, zinc has a beneficial effect on the reaction of the sulfur with the polyolefin. The stearate is a form of zinc that is highly soluble in the nonpolar medium of the polyolefins. |
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Being lipophilic, it functions as a ] for the ] of fats.<ref name=Ullmann/> |
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===Niche uses=== |
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It is a component of some paints, imparting gloss. As a chief ingredient in "fanning powder", it is used by magicians performing ] to decrease the friction between playing cards. |
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==References== |
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{{reflist}} |
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{{Stearates}} |
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] |
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] |