Difference between revisions 543583 and 547105 on testwiki

{{pp-pc1|expiry=June 6, 2020}}{{About|the color}}{{technical reasons|Yellow #5|that title|Yellow No. 5 (disambiguation)}}{{Use dmy dates|date=May 2012}} {{Infobox colour|title=Yellow|image={{photomontage
|photo1a=Aspen-PopulusTremuloides-2001-09-27.jpg
|photo1b=Ochre quarry, Roussillon, France (465185258).jpg
|photo1c=20130304FeteDuCitronMenton 010.jpg
|photo2a=Bradley Wiggins, 2012 Tour de France finish.jpg
|photo2b=清 佚名 《清仁宗嘉庆皇帝朝服像》.jpg
(contracted; show full)nchem.org/documents/iarc/vol08/p-dimethylaminobenzene.html|accessdate=8 April 2009}}</ref><ref name="gmpct">{{cite web|url=http://www.gmpct.com/products/stains_indicators_indicator_paper.php|title=Ph paper, Litmus paper, ph indicator, laboratory stain|year=2003|publisher=GMP ChemTech Private Limited|archiveurl=https://web.archive.org/web/20081112082803/http://www.gmpct.com/products/stains_indicators_indicator_paper.php|archivedate=12 November 2008|deadurl=yes|accessdate=8 April 2009}}
 {{Webarchive|url=https://web.archive.org/web/20081112082803/http://www.gmpct.com/products/stains_indicators_indicator_paper.php |date=12 November 2008 }}</ref>
* Yellow [[fireworks]] are produced by adding [[sodium]] compounds to the firework mixture. Sodium has a strong emission at 589.3&nbsp;nm ([[D2 line|D-line]]), a very slightly orange-tinted yellow.
* Amongst the [[Chemical element|elements]], [[sulfur]] and gold are most obviously yellow. [[Phosphorus]], [[arsenic]] and [[antimony]] have [[Allotrope|allotropes]] which are yellow or whitish-yellow; [[fluorine]] and [[chlorine]] are pale yellowish gases.

==== Pigments ====
[[File:Ochre_quarry,_Roussillon,_France_(465185258).jpg|right|thumb|267x267px|Yellow ochre quarry in Roussillon, France]]

* [[Yellow ochre]] (also known as Mars yellow, Pigment yellow 42, 43),<ref name="hsarts">{{cite web|url=http://www.ci.tucson.az.us/arthazards/paint1.html|title=Health & Safety in the Arts|publisher=City of Tucson|archiveurl=https://web.archive.org/web/20090510235604/http://www.ci.tucson.az.us/arthazards/paint1.html|archivedate=10 May 2009|deadurl=yes|accessdate=28 March 2009}} {{Webarchive|url=https://web.archive.org/web/20090510235604/http://www.ci.tucson.az.us/arthazards/paint1.html |date=10 May 2009 }}</ref> hydrated ferric oxide ({{chem|Fe|2|O|3|.H|2|O}}), is a naturally occurring [[pigment]] found in clays in many parts of the world. It is non-toxic and has been used in painting since prehistoric times.<ref name="webex-ochre">{{cite web|url=http://www.webexhibits.org/pigments/indiv/overview/yellowochre.html|title=Pigments through the ages: Yellow ochre|publisher=WebExhibits|accessdate=28 March 2009}}</ref>
(contracted; show full)railway signaling]], yellow is often the color for warning, slow down, such as with distant [[Railway signal|signals]].<ref>{{cite web|url=http://broadway.pennsyrr.com/Rail/Signal/learning_the_aspects.html|title=Learning the ["typical" US<nowiki>]</nowiki> Aspects|last=Bej|first=Mark|date=16 April 1994|accessdate=4 April 2009|archive-date=8 July 2012|archive-url=https://archive.is/20120708160508/http://broadway.pennsyrr.com/Rail/Signal/learning_the_aspects.html|url-status=dead}}
 {{Webarchive|url=https://archive.is/20120708160508/http://broadway.pennsyrr.com/Rail/Signal/learning_the_aspects.html |date=8 July 2012 }}</ref>
* [[Selective yellow]] is used in some automotive headlamps and fog lights to reduce the dazzling effects of rain, snow, and fog.

=== Vexillology ===

(contracted; show full)
* {{cite book|first=Pat|last=Willard|publication-date=11 April 2002|year=2002|title=Secrets of Saffron: The Vagabond Life of the World's Most Seductive Spice|publisher=Beacon Press|isbn=978-0-8070-5009-5|url=https://books.google.com/?id=WsUaFT7l3QsC}}
* {{cite book|last=Arvon|first=Henri|title=Le bouddhisme|year=1951|publisher=Presses Universitaires de France|isbn=978-2-13-055064-8}}

{{Electromagnetic spectrum}} {{Shades of yellow}} {{Web colors}} {{Color topics}}{{Authority control}}