Mercury chlorine

Fig. 4. Configurations of mercury chlorine ceU anodes (a) blade type (b) mnner technology (c) rod type and (d) mesh type.

Mercury, chlorine, calcium hypochlorite, iodine, bromine or hydrogen fluoride Acids, metal powders, flammable liquids, chlorates, nitrites, sulphur, finely-divided organics or combustibles Nitric acid, hydrogen peroxide... 

Mercury, chlorine, calcium hypochlorite, iodine, bromine and hydrogen fluoride. 

After completion of the addition, the mixture was stirred for % hour and then subjected to a pressure of 12 to 100 mm of mercury. Chlorine was then passed into the crude reaction product at a rate of 12 Ib/hr, the temperature of the reaction being kept below 12°C by brine cooling. The end of the reaction was indicated by a temperature drop which occurred after a total of 122 lb of chlorine (1.72 Ib-mols, 48% excess) was used. 

Acetone Acetylene Alkali and alkaline earth metals, e.g. sodium, potassium, lithium, magnesium, calcium, powdered aluminium Anhydrous ammonia Concentrated nitric and sulphuric acid mixtures Chlorine, bromine, copper, silver, flourine or mercury Carbon dioxide, carbon tetrachloride, or other chlorinated hydrocarbons. (Also prohibit, water, foam and dry chemical on fires involving these metals - dry sand should be available.) Mercury, chlorine, calcium hypochlorite, iodine, bromine or hydrogen fluoride... 

Because mercury chlorine cells operate at higher current densities and because the mercury cell antxle can be adjusted during operation to minimize the unode-to-ealhode gap. anode coating life in these cells is much shorter, Because of limited commercial experience with anode coinings in membrane cells, commercial lifetimes have yet to be defined. Expected lifetime is 7- 12 years. 

In mercury chlorine cells, it has been found that cells operate at lower voltages when filled with anode structures comprised or triangular rods or of vertical blades. 

Chlorine dioxide Mercury Chlorine Metals (reference 1)... 

Ammonia (anhydrous) Mercury, chlorine, bromine, iodine, hydrofluoric acid, calcium hypochlorite... 

Sample Silver Gold Mercury Chlorine Sulfur... 

The apparatus can theoretically sample to any depth. However, at depths greater than 100 m, it is logistically diflBcult to anchor and to retrieve. The apparatus could be used to monitor baseline trace metal levels, sewage and industrial metal outfalls, offshore dumping sites, and diffusion of heavy metals from polluted sediments. The concentration apparatus could also be adapted to monitor other compoimds such as methylated mercury, chlorinated hydrocarbons, amino acids, etc. by replacing the Chelex-100 in the columns with other resins specific for the compounds to be monitored. 

Huestis, D. L., Technical Report MP 78-25, SRI International (project PYU 6158), Menlo Park, CA 94025. Molar refractions for mercury-chlorine compounds are analyzed. 

Two non-equivalent mercury-chlorine bonds indicating complete separation of covalent and secondary bonding, were found in dimeric (phenylazophenyl-C,A )mercury chloride, 14. In addition to the bond leading to dimerization, another secondary interaction with a chlorine of a different molecule occurs at 3.632 A... 

The four-membered ring unit Hg2Cl2 can occur as a part of a ladder structure. Thus, (2-pyridylphenyl)mercury(II) chloride, 15a, is a tetramer, with the skeleton shown in 15b (only atoms directly bonded to mercury are shown for clarity). The mercury-chlorine interatomic distances are in the range 3.184-3.442 A [75]. 

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