Mercury purifying

In a half-cell with a calomel RE, mercury purified by distillation and mixed with solid calomel is placed on the bottom of the cell. A length of platinum wire fused into glass tubing is fuUy immersed into the mercury in order to make electrical contact. 

Finally the third Multiplication is, properly speaking, the multiplication of quantity. One throws an ounce of the Elixir multiplied in quality, on one hundred ounces of common mercury purified this Mercury placed over a slow fire will soon change into Elixir. If an ounce of this new Elixir is thrown upon a hundred ounces of other common Mercury purified, it will become very find gold. The... 

The final method of mercury animation we will examine is the way of the Divine Cinnabar. This process requires a great deal of care as it is quite dangerous, but is held to be one of the most powerful ways to animate metallic mercury and produce the Philosophical Stone. We begin with metallic mercury purified with salt and vinegar as above. 

Give the name and formula of one ore of mercury. How is the metal (a) extracted from this ore, (b) purified Starting from the metal, how would you prepare specimens of (c) mercury(I) chloride,... 

Cholestenone. Place a mixture of 1 0 g. of purified cholesterol and 0-2 g. of cupric oxide in a test-tube clamped securely at the top, add a fragment of Dry Ice in order to displace the air by carbon dioxide, and insert a plug of cotton wool in the mouth of the tube. Heat in a metal bath at 300-315° for 15 minutes and allow to cool rotate the test-tube occasionally in order to spread the melt on the sides. Warm with a few ml. of benzene and pour the black suspension directly into the top of a previously prepared chromatographic column (1) rinse the test-tube with a little more benzene and pour the rinsings into the column. With the aid of shght suction (> 3-4 cm. of mercury), draw the solution into the alumina column stir the top 0 -5 cm. or so with a stout copper wire to... 

The purified commercial di-n-butyl d-tartrate, m.p. 22°, may be used. It may be prepared by using the procedure described under i o-propyl lactate (Section 111,102). Place a mixture of 75 g. of d-tartaric acid, 10 g. of Zeo-Karb 225/H, 110 g. (136 ml.) of redistilled n-butyl alcohol and 150 ml. of sodium-dried benzene in a 1-litre three-necked flask equipped with a mercury-sealed stirrer, a double surface condenser and an automatic water separator (see Fig. Ill, 126,1). Reflux the mixture with stirring for 10 hours about 21 ml. of water collect in the water separator. FUter off the ion-exchange resin at the pump and wash it with two 30-40 ml. portions of hot benzene. Wash the combined filtrate and washings with two 75 ml. portions of saturated sodium bicarbonate solution, followed by lOu ml. of water, and dry over anhydrous magnesium sulphate. Remove the benzene by distillation under reduced pressure (water pump) and finally distil the residue. Collect the di-n-butyl d-tartrate at 150°/1 5 mm. The yield is 90 g. 

Three forms of caustic soda are produced to meet customer needs purified diaphragm caustic (50% Rayon grade), 73% caustic, and anhydrous caustic. Regular 50% caustic from the diaphragm cell process is suitable for most appHcations and accounts for about 85% of the NaOH consumed in the United States. However, it caimot be used in operations such as the manufacture of rayon, the synthesis of alkyl aryl sulfonates, or the production of anhydrous caustic because of the presence of salt, sodium chlorate, and heavy metals. Membrane and mercury cell caustic, on the other hand, is of superior quaUty and... 

Mercury layers plated onto the surface of analytical electrodes serve as Hquid metal coatings. These function as analytical sensors (qv) because sodium and other metals can be electroplated into the amalgam, then deplated and measured (see Electro analytical techniques). This is one of the few ways that sodium, potassium, calcium, and other active metals can be electroplated from aqueous solution. In one modification of this technique, a Hquid sample can be purified of trace metals by extended electrolysis in the presence of a mercury coating (35). 

The extraction of metal ions depends on the chelating ability of 8-hydroxyquinoline. Modification of the stmcture can improve its properties, eg, higher solubility in organic solvents (91). The extraction of nickel, cobalt, copper, and zinc from acid sulfates has been accompHshed using 8-hydroxyquinohne in an immiscible solvent (92). In the presence of oximes, halo-substituted 8-hydroxyquinolines have been used to recover copper and zinc from aqueous solutions (93). Dilute solutions of heavy metals such as mercury, ca dmium, copper, lead, and zinc can be purified using quinoline-8-carboxyhc acid adsorbed on various substrates (94). 

A MIXTURE of 120 g. (3 moles) of sodamide (Note i) and 200 cc. of purified mineral oil (Note 2) is ground together in a mortar until the amide is finely pulverized (Note 3). This suspension is transferred to a 2-I. round-bottom, three-necked flask fitted with a reflux condenser holding a calcium chloride tube, a 500-cc. separatory funnel, and an efficient mechanical stirrer through a mercury seal. The mortar and pestle are rinsed with an additional 250 cc. of the oil which is then added to the reaction flask. This is heated in an oil bath maintained at 160-165, the stirrer is started and 203 g. (i mole) of cyclohexylbromopropene (p. 20) is dropped in during one and one-half hours. Ammonia is evolved and this is allowed to pass through the condenser and is collected in water. 

The formylation product is too sensitive to purify by distillation even at pressures of 1-2 mm. of mercury. 

Benzoxazolinone [59-49-4] M 135.1, m 137-139 , 142-143 (corrected), b 121-213 /17mm, 335-337 /760mni. It can be purified by recrystn from aqueous Me2CO then by distn at atm pressure then in a vacuum. The methyl mercury salt recryst from aq EtOH has m 156-158°. [J Am Chem Soc 67 905 1945.]... 

Purified via the mercury salt [see Kern J Am Chem Soc 75 1865 1953], which was crystd from benzene as needles (m 121°), and then dissolved in CHCI3. Passage of H2S gas regenerated the mercaptan. The HgS ppte was filtered off, and washed thoroughly with CHCI3. The filtrate and washings were evaporated to remove CHCI3, then residue was fractionally distd under reduced pressure [Mackle and McClean, Trans Faraday Soc 58 895 1962]. 

Purified by careful fractional distn, followed by passage through neutral activated alumina. Also by shaking with mercury, drying with K2CO3 and distn. from CaS04. 

Mercury(II) bis(cyclopentadienyl) [18263-08-6] M 330.8. Purified by low-temp recrystn from Et20. 

Mercury dibromofluorescein mercurochrome, merobromin, [2 ,7 -dibromo-4 -(hydroxy-mercurio)-fluorescein di-Na salt] [129-16-8] M 804.8, m>300°. The Na salt is dissolved in the minimum vol of H2O, or the free acid suspended in H2O and dilute NaOH added to cause it to dissolve, filter and acidify with dilute HCl. Collect the ppte wash with H2O by centrifugation and dry in vacuum. The di Na salt can be purified by dissolving in the minimum volume of H2O and ppted by adding EtOH, filter, wash with EtOH or Mc2CO and dry in a vacuum. Solubility in 95% EtOH is 2% and in MeOH it is 16%. [J Am Chem Soc 42 2355 7920.]... 

The mercury plus aqueous phase was separated, after partitioning, from the ether the latter may be further washed with water, with 0.5 N sodium hydroxide, and again with water to purify the alpha glycol. Evaporation of the ethereal phase yielded a crystalline residue of the isomeric transoid (16(/3),17(a)-dihydroxy-steroid-3-methyi ether and cisoid 16(Q ),17(a)-di-hydroxy-steroid-3-methyi ether. 

To 50 cc of a carefully purified aqueous solution of the sodium salt of N(7-chloromercuri-)3-methoxy-propyl)-d-a-camphoramic acid containing 40 mg of mercury per cc is added 10 cc of a solution containing 1.14 g (1 mol equivalent) of sodium thioglycollate and the mixture is then evaporated to dryness at room temperature and reduced pressure in the presence of a desiccant. The product is an amorphous white powder which decomposes at 156° to 158°C (uncorr,), and which was found on analysis to have a mercury content of 33.0%, according to U.S. Patent 2,576,349. 

Preparation of 3 5-diiodo-4-(4 -hydroxyphenoxy)phenylacetic acid (diac) A solution of ethyl 3 5-diiodo-4-(4 -methoxyphenoxy)phenyl acetate (9.5 g) in acetic acid (60 ml) was heated under reflux with hydriodic acid (SG 1.7, 50 ml) and red phosphorus (0.5 g) for 1 hour. The hot solution was filtered and the filtrate concentrated at 50°C and 15 mm of mercury to above 20 ml. The residue was treated with water (70 ml) containing a little sodium thiosulfate to decolorize the product. The solid was collected by filtration and purified by the method of Harington and Pitt-Rivers [Biochem. J. (1952), Vol. 50, page 438]. Yield 8,36 g (95%). After crystallization from 70% (v/v) acetic acid it melted at 219°C. 

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