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Mercury-vapor lamp - Wikipedia

en.wikipedia.org/wiki/Mercury-vapor_lamp

A mercury-vapor lamp is a gas discharge lamp that uses an electric arc through vaporized ... Clear mercury lamps produce white light with a bluish-green tint due to mercury's combination .... Th...

Which element produces a violet vapor with an extremely ...

www.answers.com/Q/Which_element_produces_a_violet_vapor_with_an_extremely_unpleasant_odor

Heating a white substance produces a vapor and black material Was the substance an element or a compound? compound as it decomposed into two separate ...

What element when burned produces a violet vapor with an ...

www.answers.com/Q/What_element_when_burned_produces_a_violet_vapor_with_an_unpleasant_odor

iodine ... What element when burned produces a violet vapor with an unpleasant odor? What element when burned produces a violet vapor with an unpleasant odor?

Elements Named for Color

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discovery of and naming of elements which were named for color. ... and found it produced an emerald-green solution when dissolved in muriatic ... In 1811 Courtois accidentally added excess sulfuric acid resulting in a violet vapor cloud that ...

Iodine, Chemical Element - reaction, water, uses, elements, proteins ...

www.chemistryexplained.com/elements/C-K/Iodine.html

The periodic table is a chart that shows how chemical elements are related to ... He was amazed to see clouds of beautiful violet vapor rising from the mixture. ... Radioactive isotopes are produced when very small particles are fired at atoms.

Violet Smoke Chemistry Demonstration - About.com

chemistry.about.com/od/chemistrydemonstrations/a/Violet-Smoke-Chemistry-Demonstration.htm

Here are two ways to produce violet smoke for a colorful chemistry demonstration involving the element iodine. ... Produce Clouds of Violet Smoke. Iodine vapor produces the violet color of the smoke. - (c) Philip Evans. Iodine vapor produces ...

53 Iodine - Theodore Gray

www.theodoregray.com/PeriodicTableDisplay/Elements/053/index.s7.html

It sublimes easily to produce a beautiful purple vapor. Beads in ampoule. Be sure to watch the video associated with this element. You can see ... The most obvious effect is the generation of a cloud of beautiful violet vapor. But if you watch ...

Flame Test Colors - Chemistry Geek

chemistrygeek.com/Descriptive Colors.doc

Na+ Yellow. K+ Violet. Ca2+ Orange-red. Sr2+ Red. Ba2+ Green. Cu2+ Blue- green .... Cr2O72- Orange. Cu(NH3)42+ Dark Blue; produced when ammonia is added to Cu2+ solutions ... Transition element ions with partially filled d orbitals tend to release colored light. ... I2 Dark-violet vapor & dark metallic looking solid.

Purple fumes: the importance of iodine | www.scienceinschool.org

www.scienceinschool.org/2013/issue27/iodine

Aug 16, 2013 ... ... element iodine, from the Greek word iodes, which means purple or violet. ... Physiologically, iodine is an essential element, required for the synthesis ... Most of these radioisotopes, which are produced via fission reactions ...

Research on Iodine Deficiency and Goiter in the 19th and Early 20th ...

jn.nutrition.org/content/138/11/2060.long

In 1811, Courtois noted a violet vapor arising from burning seaweed ash and Gay -Lussac subsequently identified the vapor as iodine, a new element. ... hormones produced by the thyroid gland and is therefore essential for mammalian life.