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Phospholipids, such as this glycerophospholipid, have amphipathic character. Cross-section view of the structures that can be formed by biological amphiphiles in aqueous solutions. Unlike this illustration, micelles are usually formed by non-biological, single-chain, amphiphiles, soaps or detergents, since it is difficult to fit two chains into ...
The hydroxide anion adds to the carbonyl group of the ester. The immediate product is called an orthoester. Saponification part I. Expulsion of the alkoxide generates a carboxylic acid: Saponification part II. The alkoxide ion is a strong base so the proton is transferred from the carboxylic acid to the alkoxide ion, creating an alcohol:
The vast heterogeneity of structures underlying this class of compounds makes generalizations difficult; they're a subclass of terpenoids, oxygenated derivatives of terpene hydrocarbons. Terpenes in turn are formally made up of five-carbon isoprene units (The alternate steroid base is a terpene missing a few carbon atoms). Derivatives are ...
Lecithin (/ ˈ l ɛ s ɪ θ ɪ n / LESS-ith-in; from the Ancient Greek λέκιθος lékithos "yolk") is a generic term to designate any group of yellow-brownish fatty substances occurring in animal and plant tissues which are amphiphilic – they attract both water and fatty substances (and so are both hydrophilic and lipophilic), and are ...
A handmade soap bar Two equivalent images of the chemical structure of sodium stearate, a typical ingredient found in bar soaps Emulsifying action of soap on oil. Soap is a salt of a fatty acid (sometimes other carboxylic acids) used for cleaning and lubricating products as well as other applications. [1]
The "cilantro soap gene" is a genetic factor that makes cilantro taste and smell like soap. A study from 23andMe reveals the OR6A2 gene as a possible cause for some people's distinct cilantro ...
Like all the soap plants, Chlorogalum pomeridianum is a perennial that grows from a bulb, which is brown, between 7 and 15 cm in diameter, slightly elongated, and covered in thick, coarse fibers. The leaves grow from the base of the plant, and can be from 20 to 70 cm long and 6 to 25 mm wide. [ 1 ]
The post 40 of the Hardest Tongue Twisters in the English Language appeared first on Reader's Digest. How many of these can you say without stumbling? The post 40 of the Hardest Tongue Twisters in ...