Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Potassium sodium tartrate tetrahydrate, also known as Rochelle salt, is a double salt of tartaric acid first prepared (in about 1675) by an apothecary, Pierre Seignette, of La Rochelle, France. Potassium sodium tartrate and monopotassium phosphate were the first materials discovered to exhibit piezoelectricity.[3] This property led to its extensive use in crystal phonograph cartridges, microphones and earpieces during the post-World War II consumer electronics boom of the mid-20th century. Such transducers had an exceptionally high output with typical pick-up cartridge outputs as much as 2 volts or more. Rochelle salt is deliquescent so any transducers based on the material deteriorated if stored in damp conditions.
It has been used medicinally as a laxative. It has also been used in the process of silvering mirrors. It is an ingredient of Fehling's solution (reagent for reducing sugars). It is used in electroplating, in electronics and piezoelectricity, and as a combustion accelerator in cigarette paper (similar to an oxidizer in pyrotechnics).[2]
In organic synthesis, it is used in aqueous workups to break up emulsions, particularly for reactions in which an aluminium-based hydride reagent was used.[4] Sodium Potassium tartrate is also important in the food industry. [5]
It is a common precipitant in protein crystallography and is also an ingredient in the Biuret reagent which is used to measure protein concentration. This ingredient maintains cupric ions in solution at an alkaline pH.
^David R. Lide, ed. (2010), CRC Handbook of Chemistry and Physics (90th ed.), CRC Press, pp. 4–83
^ abJean-Maurice Kassaian (2007), "Tartaric Acid", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley, pp. 1–8, doi:10.1002/14356007.a26_163
^Newnham, R.E.; Cross, L. Eric (November 2005). "Ferroelectricity: The Foundation of a Field from Form to Function". MRS Bulletin. 30 (11): 845–846. doi:10.1557/mrs2005.272. S2CID 137948237.
^Fieser, L. F.; Fieser, M., Reagents for Organic Synthesis; Vol.1; Wiley: New York; 1967, p. 983
^"Rochelle Salt applications".
and 28 Related for: Potassium sodium tartrate information
Potassiumsodiumtartrate tetrahydrate, also known as Rochelle salt, is a double salt of tartaric acid first prepared (in about 1675) by an apothecary...
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Antimony potassiumtartrate, also known as potassium antimonyl tartrate, potassium antimontarterate, or tartar emetic, has the formula K2Sb2(C4H2O6)2...
cooking Rochelle salt (potassiumsodiumtartrate), which has unusual piezoelectric properties tartar emetic (antimony potassiumtartrate), a resolving agent...
medications. It is given by slow injection into a vein or by mouth. Potassiumsodiumtartrate (KNaC4H4O6, Rochelle salt) is a main constituent of some varieties...
"aerated salt"), was widely used in the 19th century for both sodium bicarbonate and potassium bicarbonate. Its E number food additive code is E500. The prefix...
Biuret reagent is made of sodium hydroxide (NaOH) and hydrated copper(II) sulfate, together with potassiumsodiumtartrate, the latter of which is added...
monomers that make up the cellulose backbone. It is often used in its sodium salt form, sodium carboxymethyl cellulose. It used to be marketed under the name...
acid food acid 335 A E U sodiumtartrates food acid 336 A E U potassiumtartrates food acid 337 A E U potassiumsodiumtartrate food acid 338 A E U phosphoric...
The three ingredients of Seidlitz powders (tartaric acid, potassiumsodiumtartrate and sodium bicarbonate) were manufactured by chemical factories from...
Porta observed in 1567 that tartari salis (cream of tartar, potassium hydrogen tartrate) caused powdered crystallum (quartz) to melt at a lower temperature...
convert vibrations into an electrical signal. An example of this is potassiumsodiumtartrate, which is a piezoelectric crystal that works as a transducer,...
obtained as the dihydrate. Sodium ethyl xanthate is used in the mining industry as a flotation agent. A closely related potassium ethyl xanthate (KEX) is...
American Family Physician. 96 (1): 29–35. PMID 28671376. "Ambien- zolpidem tartrate tablet, film coated". DailyMed. 29 August 2019. Retrieved 15 August 2020...
solution containing borax, sodium carbonate and sodium bicarbonate (potassium dichromate is added to improve yield along with sodium silicate). A copper pipe...
green. Variant for stainless steel: 100 g sodium thiosulphate, 10 g lead acetate, 12 g potassiumsodiumtartrate, 12 g copper sulfate, 1 lit water, 18-22 °C...
solution it is a solution of copper sulfate mixed with alkali and potassiumsodiumtartrate (Rochelle salt). He was a contributor to the Handwörterbuch of...
the INN, BAN, and DCF. As the medically used tartrate salt, the drug is also known as levorphanol tartrate (USAN, BANM). The former developmental code...
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