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Piperidine is widely used to convert ketones to enamines. [23] Enamines derived from piperidine are substrates in the Stork enamine alkylation reaction. [24] Upon treatment with calcium hypochlorite, piperidine converts to N-chloropiperidine, a chloramine with the formula C 5 H 10 NCl.
Piperidine, a cyclic six-membered amine that results from hydrolysis of piperine; Piperic acid, the carboxylic acid also derived from hydrolysis of piperine; Capsaicin, the active piquant chemical in chili peppers; Allyl isothiocyanate, the active piquant chemical in mustard, radishes, horseradish, and wasabi
Can be used on electronic parts to remove excess oil, grease, wax and other non-water soluble particles because water is not used. Used where water-based system are impractical. Cleans and prepares part surfaces for various finishing processes like painting, welding, soldering, and bonding. [2] Issues of part oxidation and water spots are not ...
Most coatings have four basic components. These are the resin, solvent, pigment and additive systems [5] but the resin or binder is the key ingredient. Continuing environmental legislation in many countries along with geopolitics such as oil production are ensuring that chemists are increasingly turning to waterborne technology for paint/coatings and since resins or binders are the most ...
An oil drying agent, also known as siccative, is a coordination compound that accelerates the hardening of drying oils, often as they are used in oil-based paints.This so-called "drying" (actually a chemical reaction that produces an organic plastic) occurs through free-radical chemical crosslinking of the oils.
Thus, oil paint is said to be "oil-based", whereas acrylic paint is "water-based" (or sometimes "water-borne"). Example of blending technique with acrylics. Painting on wooden panel. A demonstration of blending with acrylic paint. No retarders were used. The main practical difference between most acrylics and oil paints is the inherent drying time.
At midrange (between short paste and long paste) water miscible oil paint is gouache-like, sharing the properties of both transparent watercolor and opaque oil (in the manner of watercolor, for example, some colors will darken upon drying, the more so as more water is mixed into the paint, and in the manner of oil, the paint film will have some ...
Rubber cement (cow gum in British English) is an adhesive made from elastic polymers (typically latex) mixed in a solvent such as acetone, hexane, heptane or toluene to keep it fluid enough to be used. This makes it part of the class of drying adhesives: as the solvents quickly evaporate, the rubber solidifies, forming a strong yet flexible bond.