Potassium iodide - iodine reagent

The iodoform test. Dissolve 0 -1 g. or 5 drops of the compound in 2 ml. of water if it is insoluble in water, add sufficient dioxan to produce a homogeneous solution. Add 2 ml. of 5 per cent, sodium hydroxide solution and then introduce a potassium iodide - iodine reagent dropwise with shaking until a definite dark colour of iodine persists. Allow to... 

Tlie potassium iodide iodine reagent Ls prepared by dissolving 20 g. of potassium iodide and 10 g. of iodine in 100 ml. of water. 

Potassium tert. butoxide, 920, 921 Potassium -butyl xanthate, 499 Potassium ethyl xanthate, 496,499 Potassium hypochlorite solution, 461 Potassium iodide - iodine reagent, 1069 Prileschajew epoxidation reaction, 893J, 894... 

Potassium Iodide-Iodine Reagent (for iodoform reaction). 

Dithiol is a less selective reagent than thiocyanate for molybdenum. Tungsten interferes most seriously but does not do so in the presence of tartaric acid or citric acid (see Section 17.34). Tin does not interfere if the absorbance is read at 680 nm. Strong oxidants oxidise the reagent iron(III) salts should be reduced with potassium iodide solution and the liberated iodine removed with thiosulphate. 

Aravamudan and Venkappayya75 oxidized dimethyl sulphoxide in acetate buffer of pH 4 to 4.5 and with a reaction time of only 1 min. They then added potassium iodide and acid and titrated with thiosulphate the iodine liberated by unused reagent. They reported that cerium(IV) and Cr(VI) were much less effective oxidizing reagents for the sulphoxide. A very similar procedure was used by Rangaswama and Mahadevappa76 to determine dimethyl sulphoxide and numerous other compounds with chloramine B. 

Iodine-Potassium Iodide Solution, Acidic Reagent... 

Iodine-Potassium Iodide Solution-Sodium Azide-Starch Reagent 303... 

---