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Topic: Rochelle salt


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  Probert Encyclopaedia: Science & Technology (Ro-Rz)   (Site not responding. Last check: 2007-10-09)
Rochelle salt (Seignette's salt) is sodium potassium tartrate.
It is a basic compound prepared by oxidising a mixture of aniline and toluidine by nitro-benzene in the presence of ferrous chloride.
It is a hard, brittle, grey metal that forms ruthenious and ruthenic salts, of a reddish brown colour, of which ruthenious chloride gives a characteristic fine fl precipitate with water.
www.probertencyclopaedia.com /SRC.HTM   (839 words)

  
 Potassium sodium tartrate - Wikipedia, the free encyclopedia
Potassium sodium tartrate is a double salt first prepared (in about 1675) by an apothecary, Pierre Seignette, of La Rochelle, France.
As a result the salt was known as Seignette's salt or Rochelle salt.
It is a colorless to blue-white salt crystallizing in the orthorhombic system.
en.wikipedia.org /wiki/Rochelle_salt   (171 words)

  
 Definition of SALT   (Site not responding. Last check: 2007-10-09)
A salt, whatever its constitution, which merely gives an acid reaction; thus, copper sulphate, which is composed of a strong acid united with a weak base, is an acid salt in this sense, though theoretically it is a neutral salt.
Of or relating to salt; abounding in, or containing, salt; prepared or preserved with, or tasting of, salt; salted; as, salt beef; salt water.
To sprinkle, impregnate, or season with salt; to preserve with salt or in brine; to supply with salt; as, to salt fish, beef, or pork; to salt cattle.
www.dictionaryhead.com /definition/salt-definition.html   (538 words)

  
 ch16
To demonstrate the capability for producing crystals in orbit, I. Miyagawa of the University of Alabama suggested the use of Rochelle salt, a common crystal.
A large crystal of Rochelle salt was grown in the wrightlessness environment, but it broke during reentry into Earth's atmosphere while it was being returned by the astronauts.
Upon examination on Earth, Rochelle salt crystals grown on Skylab were found to have parallel, tubular cavities (1).
history.nasa.gov /SP-401/ch16.htm   (1160 words)

  
 The Columbia Encyclopedia, Sixth Edition: Rochelle salt @ HighBeam Research   (Site not responding. Last check: 2007-10-09)
ROCHELLE SALT [Rochelle salt] colorless to blue-white orthorhombic crystalline salt with a saline, cooling taste.
It is also called Seignette salt after Pierre Seignette, an apothecary of La Rochelle, France, who was the first to make it (c.1675).
Crystals of Rochelle salt are easily grown and are used in piezoelectric devices, e.g., crystal microphones and phonograph pickup cartridges (see piezoelectric effect).
www.highbeam.com /library/doc0.asp?DOCID=1E1:Rochelslt&refid=ip_encyclopedia_hf   (168 words)

  
 Chapter Salt <i>to</i> Salutation of S by Webster's Dictionary (1913 Edition)
a salt of the oxy type conveniently regarded as composed of two ingredients (analogously to a haloid salt), viz., a metal and an acid radical.
a salt regarded as formed by the union of two distinct salts, as common alum, potassium aluminium sulphate.
a salt supposed to be derived from a peroxide base or analogous compound.
www.bibliomania.com /2/3/257/1210/23988/2.html   (408 words)

  
 Purple Gold - Nick Kollerstrom
Rochelle salt is essentially prepared from tartar that settles out from wine as it ferments[3], so maybe this is part of the mystical meaning of the colour: a wine-compound, on the very border between organic and inorganic, living and dead, is needed to make the marvellous purple gold.
Nothing happened with the Rochelle salt solution, but the stannous chloride with gold gave a rather reddish amber hue, here shown, which precipitated in a few days, as the red colour deepened.
Crystals of Rochelle salt are easily grown and are used in piezoelectric devices, e.g., crystal microphones.
www.levity.com /alchemy/kollerstrom_purple_gold.html   (1448 words)

  
 [No title]
The internal polarization and the hysteresis of the internal polarization of Rochelle salt sample were measured.
The results of this measurement at different temperatures were used to attempt to confirm the Curie temperatures of Rochelle salt.
Using a Teltron Tel-X-Ometer, the properties associated with the phase change of Rochelle Salt at 297K are investigated.
campus.umr.edu /physics/abstracts/11-27-01.html   (735 words)

  
 Rochelle salt on Encyclopedia.com   (Site not responding. Last check: 2007-10-09)
New Rochelle developer converting Fairfield factory into retail complex.
(Louis Pasteur's discovery of mirror-image isomerism in salts of racemic acid)
Travel: Le rosbif returns to La Rochelle Yachts, cafes and hotels crowd the Atlantic seaport which was once a refuge for persecuted French Protestants.
www.encyclopedia.com /html/R/Rochelslt.asp   (367 words)

  
 20445. Is rochelle salt edible? [UK]
Mix half a teaspoon of Rochelle salt with a little cream of tartar, take before breakfast, should keep you off cigarettes all day.
I do not know a source of BP standard, but it is widely available from chemical supply houses; however, I would not suggest using this source as a medicine as it is almost certainly not BP standard.
I know Rochelle salt was used medicinally for some time, but I don't know about it's use to quit smoking.
www.finishing.com /204/45.shtml   (213 words)

  
 PIRA 5E60.00 PIEZOELECTRICITY   (Site not responding. Last check: 2007-10-09)
A Rochelle salt is hooked to a neon lamp or electrostatic voltmeter.
Measure the voltage of a Swignette salt crystal under various stresses produced by a mass on a lever arm.
Four Rochelle salt crystals are mounted at the center of a long square cross section steel bar and driven by a circuit.
www.physics.ncsu.edu:8380 /pira/5eandm/5E60.html   (216 words)

  
 Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
The electron-spin resonances of single crystals of Rochelle salt and deuterated Rochelle salt irradiated with 40kv x rays have been studied as a function of orientation of the crystal in the magnetic field.
In Rochelle salt, one of these gives rise to an intense doublet which decays rapidly, another to a doublet which grows and then decays, and the third is an 8-line spectrum which grows and is stable.
It is shown that the waters of hydration play an important role in the kinetics of the growth and decay of the centers.
www.osti.gov /energycitations/product.biblio.jsp?osti_id=4671824   (321 words)

  
 Rochelle, La
La Rochelle is the principal French fishing port on the Atlantic coast.
La Rochelle prospered again as it became the chief center of trade with Canada, but it suffered from the loss of Canada by France and from the Continental System under Napoleon.
This stage of life; Jack and Rochelle Sutin of St. Louis Park survived the Holocaust hiding in the vast wilderness of eastern Poland.
www.infoplease.com /ce6/world/A0842134.html   (413 words)

  
 Tártaros Gonzalo Castelló, S.L.
Tártaros Gonzalo Castelló, S.L. Rochelle Salt is a white crystalline powder or colourless crystal, which is obtained by treating the natural raw tartaric material.
Our Rochelle Salt is manufactured in a completely automatic unit plant.
In order to achieve this aim we are commited to a laboratory Research & Development program to continue securing a Rochelle Salt suply, produced with the most innovative techniques.
www.tartaric.com /salt.htm   (218 words)

  
 The Columbia Encyclopedia, Sixth Edition: Rochelle salt@ HighBeam Research   (Site not responding. Last check: 2007-10-09)
Chemistry and Industry; May 4, 1998; Kauffman, George B. in the form of its potassium salt (tartar).
exception of the sodium potassium salt (Rochelle salt), the sodium ammonium salt is the only inactive tartrate...
En la otra semifinal Salt Lake City dio cuenta...
www.highbeam.com /ref/doc0.asp?docid=1E1:Rochelslt   (340 words)

  
 Rochelle Salt Synthesis (xlroch.htm)
Here you will learn how to prepare Rochelle salt from baking soda and cream of tartar, which are available from a grocery store.
It will be helpful to know that about 60 g of Rochelle salt will dissolve in about 100 g of water at room temperature.
This procedure is adapted from that used by Malgorzata Kaminska, an Ottawa high school student, in her Science Fair project.
www.seawhy.com /xlroch.html   (601 words)

  
 Picture of Rochelle Salt   (Site not responding. Last check: 2007-10-09)
This picture shows the structure of the Rochelle Salt crystal.
This picture also shows how the crystal was started by tying a string around a small seed crystal (in the centre) that was suspended into a saturated Rochelle Salt solution (by the string).
To see what the effect of "contaminating" (or "doping") this crystal with copper salts has on the shape and colour, Click Here.
www.seawhy.com /xlrs.html   (100 words)

  
 Crystal Growing Competition
Schools will be provided with free starting material (Rochelle salt).
This year we will be using potassium sodium tartrate (also known as Rochelle Salt) kindly donated by Anachemia Science.
They will ship 500g of Rochelle salt directly to you for free.
home.nas.net /~dbc/cic_hamilton/crys.html   (1225 words)

  
 AllRefer.com - Rochelle salt, Compound & Element (Compounds And Elements) - Encyclopedia
AllRefer.com - Rochelle salt, Compound & Element (Compounds And Elements) - Encyclopedia
You are here : AllRefer.com > Reference > Encyclopedia > Compounds And Elements > Rochelle salt
Rochelle salt, colorless to blue-white orthorhombic crystalline salt with a saline, cooling taste.
reference.allrefer.com /encyclopedia/R/Rochelslt.html   (220 words)

  
 Rochelle salt
Crystals of Rochelle salt are easily grown and are used in piezoelectric devices, e.g., crystal microphones and phonograph pickup cartridges (see
Seignette salt - Seignette salt: see Rochelle salt.
(Louis Pasteur's discovery of mirror-image isomerism in salts of racemic acid) (Chemistry and Industry)
www.infoplease.com /ce6/sci/A0842135.html   (273 words)

  
 Pierre Curie -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-09)
Together with his wife, Marie, Pierre was awarded the (An annual award for outstanding contributions to chemistry or physics or physiology and medicine or literature or economics or peace) Nobel Prize in physics in 1903:
"in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor (French physicist who discovered that rays emitted by uranium salts affect photographic plates (1852-1908)) Henri Becquerel."
The (A unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second) curie is a unit of radioactivity (3.7 x 10
www.absoluteastronomy.com /encyclopedia/p/pi/pierre_curie.htm   (634 words)

  
 USS Pampanito - WCA, WCA-1 ECHO RANGING LISTENING AND SOUNDING EQUIPMENT
A complete installation includes two ranging/listening projectors, one Rochelle salt and one magnetostrictive, mounted port and starboard on the boat; a sounding projector; two drivers, one of which is used alternately for ranging or sounding; and four receivers.
-Two drivers are supplied with each equipment, one for the magnetostrictive projectors, either ranging or sounding, the other for the Rochelle salt (QB) ranging projector.
QC/NM driver-The electron tube oscillator is tunable over the range from 22.5 to 25.5 kc; its output is fed to a four tube push-pull parallel amplifier section.
www.maritime.org /radio-wca.htm   (787 words)

  
 - SHOP.COM
A classic study in understated luxury, Noritake's Rochelle Gold brings ancient beauty and modern style together.
A subtle pattern embossed in the 24kt gold is accented at even intervals by a raised bead.
All other designated trademarks, copyrights and brands are the property of their respective owners.
www.shop.com /op/aprod-p26945388   (193 words)

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