Carbon reduced

The carbon reduces a quarter of the anhydrite to the sulphide CaSO + 2C - CaS + ICOj The sulphide then reacts with the remaining anhydrite ... 

The characteristics for aqueous KOH (97—99) solutions vary somewhat for battery electrolytes when additives are used. Furthermore, potassium hydroxide reacts with many organics and with the carbon dioxide in air to form carbonates. The build-up of carbonates in the electrolyte is to be avoided because carbonates reduce electrolyte conductivity and electrode activity in some cases. 

The reaction time depends on the quality of the potassium hydroxide employed. An induction period is often observed when older potassium hydroxide samples are used, possibly because surface formation of carbonates reduces the solubility of the salt in acetonitrile. An attempt was made to monitor the cinnamonitrile reaction by GLC, following loss of starting... 

Activated carbon showed an auto-ignition temperature in flowing air of 452-518°C. Presence of 5% of the base ( triethylenediamine ) adsorbed on the carbon reduced the AIT to 230-260°C. At high air flow rates an exotherm was seen at 230-260°, but ignition did not then occur until 500°C. 

In ethyl 3-keto-2-oximino-3-phenylpropanoate catalytic hydrogenation over palladium on carbon reduced both the keto and oximino group, giving a 74% yield of ethyl ester of -phenylserine (ethyl 2-amino-3-hydroxy-3-phenylpropionate). The reduction is stereospecific and only the erythro dia-stereomer was obtained, probably via a cyclic intermediate 11097]. Similarly, hydrogenation over Raney nickel at 25-30° and 1-3 atm converted ethyl a-oximimoacetoacetate quantitatively to ethyl 2-amino-3-hydroxybutanoate [45]. 

The sodio sulphate (technically temed tdU take) ia next heated with calcic carbonate and small coal. The carbon reduces the sodio sulphate to sulphide, and the calojo carbonate transforms the sodio sulphide into sodio carbonate, insoluble calcic osysulpbide being simultaneously produced —... 

Sources of carbons, reducing equivalents, and energy sources As with fatty acids, all the carbon atoms in cholesterol are provided by acetate, and NADPH provides the reducing equivalents. The pathway is driven by hydrolysis of the high-energy thioester bond of acetyl CoA and the terminal phosphate bond of ATP. 

It turns out that substitution of a proton by carbon reduces three-bond coupling by a factor of 0.6-0.8, so that... 

For As(V), the zirconium-loaded activated carbon was the most effective sorbent, whereas the activated carbon was largely ineffective (Daus, Wennrich and Weiss, 2004, 2950). The zirconium-loaded activated carbon reduced the As(V) concentrations to below 50 pg F 1 in about 30 minutes (Daus, Wennrich and Weiss, 2004, 2951). After 24 hours, the As(V) concentrations in the Absorptionsmittel 3 and Fe(III) hydroxide batch leachates were below 50 pg F 1 (Daus, Wennrich and Weiss, 2004, 2951). 

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