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Topic: Calomel


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  Calomel - LoveToKnow 1911
It is manufactured by heating a mixture of mercurous sulphate and common salt in iron retorts, and condensing the sublimed calomel in brick chambers.
Calomel is a white powder which sublimes at a low red heat; it is insoluble in water, alcohol and ether.
Calomel possesses certain special properties and uses in medicine which are dealt with here as a supplement to the general discussion of the pharmacology and therapeutics of mercury (q.v.).
www.1911encyclopedia.org /Calomel   (644 words)

  
 Calomel — FactMonster.com
It was afterwards applied in joke by Sir Theodore Mayerne to the chloride of mercury, in honour of a favourite negro servant whom he employed to prepare it.
As calomel is a white powder, the name is merely a jocular misnomer.” —
Calomel - Calomel Hooper says- “This name, which means `beautiful fl,' was originally given to...
www.factmonster.com /dictionary/brewers/calomel.html   (166 words)

  
 CALOMEL - Online Information article about CALOMEL
BRICK (derived according to some etymologists from the Teutonic bricke, a disk or plate; but more authoritatively, through the French brique, originally a " broken piece," applied especially to bread, and so to clay, from the Teutonic brikan, to break)
green, containing calomel, mercuric sulphide and bile which, owing to the antiseptic action, has not been decomposed.
lamp; in about twenty minutes the calomel is effectually absorbed by the skin.
encyclopedia.jrank.org /CAL_CAR/CALOMEL.html   (855 words)

  
 NationMaster - Encyclopedia: Calomel   (Site not responding. Last check: )
Also known as calomel or mercurous chloride, this dense white or yellowish-white, odorless solid is the principal example of a mercury(I) compound.
Calomel was used as a medicine internally for laxation and disinfection before the 20th century.
The above doses are for adults For a child 8 years old, 10 grains of calomel and 5 drops of laudanum in diarrhoea, and 20 grains of calomel and 10 or 12 drops of laudanum in cholera.
www.nationmaster.com /encyclopedia/Calomel   (243 words)

  
 Calomel, Hg2Cl2
CALOMEL is extremely suitable for the construction of acousto-optic devices.
It follows that due to the low value of shear wave velocity, dimensions can be reduced and the modulation bandwidth is slightly reduced.The transparency of CALOMEL (0.38 to 20 µm) enables the use of these modulators in a broad spectral range (compared with TeO2).
In addition, these properties are valuable in laser surgery, because CALOMEL has a broad band of transparency and is thereby suitable as a visible light beam for infra-red beam pointing.
www.mt-berlin.com /frames_ao/descriptions/calomel.htm   (313 words)

  
 Rush's Bilious Pills
Calomel (mercurous chloride) was believed to stimulate the liver and the gall bladder, although the opposite was true.
Calomel (mercurous chloride) had entered medical practice in the 1600s as a milder and more palatable mercury compound.
Because of its dual activity, calomel was included in both Rush's Pills--eliminating excess bile through purging--and by itself in powder form, where it could be given in small doses over time to combat syphilis.
www.lewis-clark.org /content/content-article.asp?ArticleID=2564   (1079 words)

  
 The Power of Stones : Calomel   (Site not responding. Last check: )
Calomel, meaning “beautiful fl,” is a mild chloride of mercury.
When it forms mineral coatings and tabular or pyramidal crystals in nature, it is usually referred to as Horned Quicksilver.
Calomel exerts stabilizing influences when you are experiencing significant changes.
www.angelfire.com /de/poetry/Gemstones/calomel.html   (75 words)

  
 Reference Electrodes
The requirements for the counter electrode of the two-electrode system include a high exchange current (fast electron transfer kinetics), very large surface area (to lower the current density) and a high concentration of the species involved in the redox reaction, such that the concentrations are not significantly changed by the passage of a current.
Two widely used aqueous reference electrodes are the silver/silver chloride electrode and the saturated calomel electrode.
The BAS RE-2 saturated calomel electrode (SCE) is an H-cell.
www.epsilon-web.net /Ec/manual/Maintenance/reference.html   (2066 words)

  
 Mercury waste recycling, recovery, disposal, treatment & management services - Bethlehem Apparatus
With over 50 years experience in the recycling of mercury wastes, Bethlehem Apparatus has the expertise to solve even the most difficult mercury disposal problems.
One such system was developed in response to a need in the mining industry for a cost-effective method of disposing of calomel, a mercury-bearing by-product generated from pollution control equipment using the Norzink process.
Calomel is converted in to mercury/mercuric oxide and subsequently retorted into elemental mercury.
www.bethlehemapparatus.com /page02.htm   (329 words)

  
 CALOMEL - Definition
Seeing calomel in your dream, forewarns that a rival will be the main cause of your distress and unhappiness.
Dreaming that you are drinking calomel tea means that you are being manipulated and used by your lover.
It is time to open your eyes and do not allow yourself to be stepped on.
www.hyperdictionary.com /dream/calomel   (53 words)

  
 Oct. 1, 1998: Some memories hard to stomach   (Site not responding. Last check: )
Durham and I are pretty close to the same age, and that's why he's remembering things like biliousness and calomel.
I just now looked up that word in my dictionary, which says that calomel is a white tasteless compound used as a purgative.
If calomel is really tasteless they must have been adding something to that powder that made it go down your throat like half a pound of rat poison.
www.chron.com /content/chronicle/aol-metropolitan/hale/hale981001.html   (674 words)

  
 calomel - definition by dict.die.net
calomel n : a tasteless colorless powder used medicinally as a cathartic [syn: mercurous chloride]
Aquila alba [L., white eagle], an alchemical name of calomel.
So called from its being white, though made from a fl mixture of mercury and corrosive sublimate.
dict.die.net /calomel   (93 words)

  
 Electrochemistry C
The silver metal is replaced by mercury (electrical connection is made by an inert metal wire), the salt is mercury chloride, and the solution is saturated potassium chloride.
Abbreviated as "SCE," for: "saturated calomel electrode." The equilibrium electrode potential is a function of the chloride concentration of the internal electrolyte ("filling solution").
The electrolyte is practically always saturated potassium chloride (hence the name: "saturated calomel electrode," SCE, "calomel" is an old name for mercurous chloride), producing a potential of 0.244 volt against the standard hydrogen electrode at 25 oC.
corrosion-doctors.org /Dictionary/Dictionary-C.htm   (3909 words)

  
 The Calomel Electrode
THE silver/silver chloride electrode has been preferred to the calomel electrode for precise potentiometric work, and E
Nevertheless, mercury suffers from none of the difficulties associated with purity and thermal or mechanical history which affect silver and other hard metals.
Attempts have been made to remedy the defects of the calomel electrode in order to make use of this advantage, and have been so far successful as to warrant a preliminary report.
www.nature.com /nature/journal/v165/n4196/abs/165530a0.html   (92 words)

  
 Education Resources » Saturated calomel electrode
The Saturated calomel electrode (SCE) is a reference electrode which uses the reaction between mercury metal and mercury(I) chloride, to fix its potential.
calomel) is a saturated solution of potassium chloride in water.
The electrode is normally linked via a porous frit to the solution in which the other electrode is immersed.
www.thecatalyst.org /resource/2006/04/21/Saturated-calomel-electrode   (210 words)

  
 pH Electrodes
The Ag/AgCl half-cell has the higher temperature rating, whiel teh Calomel hald-cell is recommended when measuring meats, broths, or any protein bearing sample.
Calomel Combination Electrode with 4mm O.D. stem, intermediate length.
Extra long 3.5mm O.D. stem allows this calomel combination electrode to measure samples at the bottom of 7" long NMR tubes.
www.cypresssystems.com /Electrodes/pHElectrode.html   (642 words)

  
 Calomel - toxicity, ecologicial toxicity and regulatory information
Calomel - toxicity, ecologicial toxicity and regulatory information
Calomel - Identification, toxicity, use, water pollution potential, ecological toxicity and regulatory information
There may be other diseases and chemicals that have similar symptoms.
www.pesticideinfo.org /Detail_Chemical.jsp?Rec_Id=PC33683   (810 words)

  
 Lab Probes — Calomel pH Combination Glass Electrodes with 6 & 8 mm O.D. Insertion Stems
These electrodes feature narrow insertion stems that allow measurements of small samples inside of test tubes and narrow necked vessels.
The operational characteristics of the calomel half-cell are given below.
Hg/Hg is a very stable half-cell that is ideally suited for use with TRIS buffers and sample solutions containing proteins and other biological media.
www.broadleyjamesprocess.com /lab-calomel-6.html   (292 words)

  
 Amazon.com: calomel   (Site not responding. Last check: )
Studies on the cell consisting of the calomel and the silver chloride electrodes in potassium chloride solutions by J. P Sanders (Unknown Binding - 1928)
Note on the treatment of syphilis by the hypodermic injection of calomel by J. C Wilson (Unknown Binding - 1888)
The cell consisting of the calomel electrode and the hydrogen electrode in hydrochloric acid solutions by Bob Williams (Unknown Binding - 1927)
www.amazon.com /s?ie=UTF8&keywords=calomel&tag=icongroupinterna&index=blended&link_code=qs&page=1   (724 words)

  
 mercurous chloride calomel, bismuth subgallate, bismuth nitrate, subnitrate, bismuth oxide, phenylmercuric nitrate, ...   (Site not responding. Last check: )
mercurous chloride calomel, bismuth subgallate, bismuth nitrate, subnitrate, bismuth oxide, phenylmercuric nitrate, ammoniated mercury, bismuth subgallate, bismuth nitrate, india
A dense white powder,slowly decomposed by sunlight into mercuric chloride and mercury.
Dark green Bengal iights,calomel paper,for calomel electrodes, as a fungicide, in agriculture to control root maggots on cabbage and onions.
www.henichem.com /mercurous-chloride-calomel.htm   (73 words)

  
 Calomel Mineral Data
Comments: A grayish aggregate of calomel on a rufous matrix.
Warning: this large pop-up is very compute intensive and may not work well with some computers.
Calos N J, Kennard C H L, Davis R L, Zeitschrift fur Kristallographie, 187 (1989) p.305-307, The structure of calomel, Hg2Cl2, derived from neutron powder data
www.webmineral.com /data/Calomel.shtml   (288 words)

  
 calomel reference cell: underwater corrosion monitoring equipment: buckleys (uvral) ltd
The Screw-in Calomel reference cell is used to ascertain the accuracy of Silver/Silver Chloride Half Cell in the Bathycorrometer or the UCP1A/B. It has been designed to be easily used on the Bathycorrometer by removing the stainless steel probe and screwing on the Calomel reference cell.
The electrode is housed in a high resistance PVC body which is sealed for life.
The Calomel reference electrode is supplied with full operating instructions and will give a service life of up to 1 year if looked after.
www.buckleys.co.uk /ccell.htm   (126 words)

  
 Calomel Mineral Data
Comments: A grayish aggregate of calomel on a rufous matrix.
Warning: this large pop-up is very compute intensive and may not work well with some computers.
Calos N J, Kennard C H L, Davis R L, Zeitschrift fur Kristallographie, 187 (1989) p.305-307, The structure of calomel, Hg2Cl2, derived from neutron powder data
webmineral.com /data/Calomel.shtml   (282 words)

  
 C - Glossary of chemical terms
Calomel electrode (calomel half cell) is a type of half cell in which the electrode is mercury coated with calomel (Hg Cl
In the calomel half cell the overall reaction is
If you have comments, corrections or suggestions about this site, please send me a e-mail.
www.ktf-split.hr /periodni/en/abc/c.html   (1906 words)

  
 Tris Calomel Line pH Electrode Model Orion 71-02
Tris Calomel Line pH Electrode Model Orion 71-02
Calomel electrodes employ a calomel reference system designed to minimize the possibility of blockage of the reference junction when the electrode is used in samples containing species such as Tris buffer and proteins.
Routine pH measurements in all biotech samples (proteins and enzymes), also ideal for use with and in Tris-buffers.
www.geneq.com /catalog/en/triscalomel_7102.html   (67 words)

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