Methanol, properties phosphorus

Generally, the phosphorus content in starches is associated with different pasting properties, and it confers a larger ion binding capacity. In wheat and com starch, phosphorus is present largely or wholly as adsorbed phos-phatides (extractable with boiling 85% methanol) associated preferentially with the amylose fraction. 

Iodine, m.p. 113.6°, sublimes readily, a property that can be used for its purification. To remove chlorine or bromine present as impurity, sublimation is effected in presence of potassium iodide. Iodine is only slightly soluble in water (0.28 g/1 at 20°), but readily so in mineral acids or aqueous potassium iodide (15.9 g/1 in 0.12n-KI and 420 g/1 in 1.9n-KI). At room temperature iodine dissolves readily in ether, methanol, ethanol, CS2, or benzene, and moderately in acetic acid, CHC13, CC14, and light petroleum. Iodine can be dried in a desiccator over calcium chloride, concentrated sulfuric acid, or phosphorus pent-oxide. It is not hygroscopic. For the preparation of very pure iodine see reference1 ... 

Metal-free nitrogen and phosphorus dual-doped, electrocatalytically active, functionalized nanocarbon (FNC) and photoluminescent carbon nanodots (PCNDs) were simnltaneonsly synthesized using a facile one pot microwave-assisted process (Prasad et al., 2013). In addition to the electrocatalytic activity, FNC also shows attractive properties as a metal-free oxygen reduction catalyst and it is resistant to methanol crossover effects in alkaline media The 5-10 nm PCNDs, exhibiting blue fluorescence nnder UV exposure were successfiilly used for bioimagrug apphca-tions. 

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