Water potassium hydroxide

Gorsuch and Hercules 109> stated that certain discrepancies between the fluorescence spectrum of 3-amino-phthalate dianion and the chemiluminescence spectrum of luminol are partly due to reabsorption of the shorter-wavelength chemiluminescence light by the luminol monoanion. These authors confirmed the results of E. H. White and M. M. Bursey 114> concerning the very essential solvent effect on luminol chemiluminescence the relative intensity of the latter in anhydrous DMSO/t-BuOK/ oxygen was found to be about 30,000 times that in DMSO/28 mole % water/potassium hydroxide/oxygen. 

A Aqueous NaOH, B t-Butanol-water-potassium hydroxide. In parentheses references reporting different yields... 

Combine water, potassium hydroxide, and Stepanate SXS. Slowly add Bio-Soft S-100 with agitation. Adjust pH to 7.0-8.0 with sulfuric acid or potassium hydroxide. Dissolve TKPP and Steol CS 460. Mix until clear and homogeneous. 

Properties Yel. fuming liq. dec. in water (reactive) m.w. 221.90 dens. 3.189 m.p. 9.4 C b.p. 98 C Toxicology ACGIH TLV/TWA 2.5 mg(F)/m (air) poison toxic by ing., inh., and skin contact corrosive to skin and mucous membranes causes severe burns TSCA listed Precaution Oxidizer dangerous fire risk attacks glass reacts violently with water, potassium hydroxide explosive reaction with benzene (> 50 C), potassium, molten sodium incandescent reaction with calcium carbide, metals, nonmetals... 

Gerhardt used a water type H O in deciding that oxides of metals are M O (see p. 421) and Laurent represented alcohol and ether as analogous to water, potassium hydroxide, and potassium oxide ... 

Water Sodium sulfite Ascorbic acid Pyrocatechol Sodium sulfate Kalium bromide Adding water Water Potassium hydroxide Sodium sulfate Water 375 ml 10.0 g 50.0 g 500 ml... 

Formation of the cyclic A -acyl urethane 141 requires very anhydrous conditions. In the presence of a small amount of water, potassium hydroxide (KOH) forms from KO Bu and leads to partial saponification of the carbamate moiety of 136 and liberates CO2 prior to the intramolecular cyclization, ultimately resulting in the formation of alcohol 145 (Scheme 7.47). 

The chemiluminescence quantum efficiency of luminol is practically the same in anhydrous DMS0/base/02 and in the aqueous alkaline H202/hemin system [33]. Addition of small amounts of water to the DMSO system drastically diminishes, the chemiluminescence light intensity. In a mixed solvent of DMSO/28 mole water/potassium hydroxide/oxygen the relative intensity was only 1/30,000 of that in the DMSO/t-butoxide/02 system [43a]. 

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