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If necessary, an aqueous solution of alkaloid salts is again made alkaline and treated with an organic solvent. The process is repeated until the desired purity is achieved. In the acidic extraction, the raw plant material is processed by a weak acidic solution (e.g., acetic acid in water, ethanol, or methanol). A base is then added to convert ...
Folpet, a phthalimide, is a commercial fungicide. [3]Phthalimide is used as a precursor to anthranilic acid, a precursor to azo dyes and saccharin. [2]Alkyl phthalimides are useful precursors to amines in chemical synthesis, especially in peptide synthesis where they are used "to block both hydrogens and avoid racemization of the substrates". [4]
Those who wish to adopt the textbooks are required to send a request to NCERT, upon which soft copies of the books are received. The material is press-ready and may be printed by paying a 5% royalty, and by acknowledging NCERT. [11] The textbooks are in color-print and are among the least expensive books in Indian book stores. [11]
Its solubility in pure water is 7.32 x 10 −4 M. However in a solution that is 0.0200 M in barium nitrate, Ba(NO 3) 2, the increase in the common ion barium leads to a decrease in iodate ion concentration. The solubility is therefore reduced to 1.40 x 10 −4 M, about five times smaller. [1]
Inositol has been used as an adulterant or cutting agent for many illegal drugs, such as cocaine, methamphetamine, and sometimes heroin, [47] probably because of its solubility, powdery texture, or reduced sweetness (50%) compared to more common sugars. Inositol is also used as a stand-in film prop for cocaine in filmmaking. [48] [49]
The bonding makes trehalose very resistant to acid hydrolysis, and therefore is stable in solution at high temperatures, even under acidic conditions. The bonding keeps nonreducing sugars in closed-ring form, such that the aldehyde or ketone end groups do not bind to the lysine or arginine residues of proteins (a process called glycation ).
6. Salmon. This fatty, colorful fish is a great choice for your heart and brain health–and for your fingernails! In addition to delivering 18 g of protein per 3-ounce serving, ...
Hexamethylenetetramine (HMTA), also known as 1,3,5,7-tetraazaadamantane, is a heterocyclic organic compound with diverse applications. [2] [3] It has the chemical formula (CH 2) 6 N 4 and is a white crystalline compound that is highly water soluble in water and polar organic solvents.