Mercuric chloride power

Mercuric chloride has a concentration exponent of 1 thus, the activity will be reduced by the power of 1 on dilution, and a threefold dilution means the disinfectant activity will be reduced by the value 3 or 3, that is to a third. Put another way the disinfection time will be three times as long. In the case of phenol, however, with a concentration exponent of 6, a threefold dilution will mean a decrease in activity of 3 = 729, a figure 243 times the value for mercuric chloride. This explains why phenols may be rapidly inactivated by dilution and should sound a warning bell regarding claims for diluted phenol solutions based on data obtained at high concentrations. 

Phosphorus acid is a powerful reducing agent. When treated with a cold solution of mercuric chloride, a white precipitate of mercurous chloride forms ... 

ARh 12 442, ARi) 12-591, AA- 0 873, AA,3-a 0 530. Molecular heat of combustion at constant volume, 733,600 calories. Investigations on the dielectric constant have been carried out by Walden, and the complex CgHgHg- was isolated by Krause in a similar manner to the corresponding methyl body. Whilst mercury dimethyl possesses much the same absorptive power as mercuric chloride, the diethyl compound shows much greater absoiq tion. ... 

The effects of inorganic salts on plasma cholinesterase (E16) are largely contradictory. Fruentova (F9) reported that divalent cations are more effective inhibitors of horse serum cholinesterase than are monovalent ions, whereas divalent ions are frequently reported to have a marked activating effect (H38, T8, VI). Lithium and sodium nitrates have been shown by in vitro studies of the reaction of human plasma cholinesterase with benzoylcholine to have identical inhibition profiles (W21), while sodium and potassium chlorides had very similar inhibitory actions on the hydrolysis of acetylcholine by human plasma (H47). Silver nitrate, copper sulfate, and mercuric chloride are powerful inhibitors of F. polycolor butyrylcholinesterase (N2). Cohen and Oosterbaum (C12) concluded that activation by cations occurring at the usual substrate concentration is highly dependent on the experimental conditions. This supposition is very relevant to the somewhat random choice of buffers and substrates in the work reported above. 

Various procedures have been developed to evaluate activated carbons for medicinal purposes.1 The adsorption of substances such as Methylene Blue, strychnine, antipyrene, mercuric chloride is suggested for evaluation. In addition to measurements of adsorptive power, the U.S. Pharmacopeia includes tests to insure the absence of heavy metals, sulfides, and cyanides.65... 

IODINE (7553-56-2) A powerful oxidizer. Material or vapors react violently with reducing agents, combustible materials, alkali metals, acetylene, acetaldehyde, antimony, boron, bromine pentafluoride, bromine trifluoride, calcium hydride, cesium, cesium oxide, chlorine trifluoride, copper hydride, dipropylmercury, fluoride, francium, lithium, metal acetylides, metal carbides, nickel monoxide, nitryl fluoride, perchloryl perchlorate, polyacetylene, powdered metals, rubidium, phosphorus, sodium, sodium phosphinate, sulfur, sulfur trioxide, tetraamine, trioxygen difluoride. Forms heat- or shock-sensitive compounds with ammonia, silver azide, potassium, sodium, oxygen difluoride. Incompatible with aluminum-titanium alloy, barium acetylide, ethanol, formamide, halogens, mercmic oxide, mercurous chloride, oxygen, pyridine, pyrogallic acid, salicylic acid sodium hydride, sodium salicylate, sulfides, and other materials. 

Mercury is considered for possible regulation in the electric power industry under Title III of the 1990 Clean Air Act Amendments. One promising approach for removing mercury from fossil-fired flue gas involves the direct injection of activated carbon into the gas. Meserole et al. (1999) describe a theoretical model for estimating mercury removal by the sorbent injection process. An important parameter of the model is the effective diffu-sivity of mercuric chloride vapor traces in the flue gas. If the flue gas is at 1.013 bar and 408 K, and its composition (on a mercuric chloride-free basis) is 6% 02, 12% C02, 7% H20, and 75% N2, estimate the effective diffusivity of mercuric chloride in the flue gas. Assume that only the HgCl2 is adsorbed by the activated carbon. Meserole et al. reported an effective diffusivity value of 0.22 cm2/s. 

Many salts have the power of precipitating albuminoid substances from solution. The nature of the precipitate differs radically according to the salt used. In certain cases, the precipitate obtained is a metallo-organic compound, produced by a combination of salts with albuminoid substance. This is the case with ferric acetate, neutral or basic lead acetate, copper sulphate, and mercuric chloride. With other salts, such, for example, as with ammonium sulphate, zinc sulphate, potassium acetate, sodium sulphate and chloride, the precipitate is of another nature. The albuminoids precipitated have under-... 

Phosphites are powerful reducing agents. They will, when added to mercuric chloride, give a white precipitate of mercurous chloride which later turns black on further reduction to metallic mercury. Dilute silver nitrate will give a white precipitate of silver phosphite which quickly turns black on precipitation of silver. Aqueous chromic acid is violently reduced to chromic oxide (5.216) and sulphuric acid is reduced to sulphur dioxide (5.217). 

Chlorine monoxide, obtained by the action of chlorine on mercuric oxide, is a yellowish gas, very soluble in water. It is twice as powerful in its bleaching action as chlorine. The gas is obtained by passing over dry mercuric oxide (prepared by precipitation from mercuric chloride with caustic soda) dry chlorine gas. The tube containing the oxide must be cooled by being surrounded by freezing mixture. It is a very volatile liquid, boiling at 6. ... 

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