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Friedel–Crafts alkylations can be reversible. Although this is usually undesirable it can be exploited; for instance by facilitating transalkylation reactions. [10] 1,3-Diisopropylbenzene is produced via transalkylation, a special form of Friedel–Crafts alkylation. It also allows alkyl chains to be added reversibly as protecting groups.
James Crafts, the son of Royal Altamont Crafts and Marianne Mason (daughter of Senator Jeremiah Mason), [3] [4] was born in Boston, Massachusetts and graduated from Harvard University in 1858. Although he never received his Ph.D. , he studied chemistry in Germany at the Academy of Mines (1859) of Freiberg , and served as an assistant to Robert ...
Most glue sticks are designed to glue paper and card stock together and are not as strong as some liquid-based variants. They can be used for craft and design, office use, and at school. There are several varieties: permanent,washable, acid-free,non-toxic, solvent-free, and dyed (e.g. to see where the glue is being applied).
Adhesive removers are often based on organic solvents, which can dissolve or soften many adhesive polymers that do not dissolve in water. They may also contain a gelling agent, increasing viscosity so that the product sticks to the area to be treated rather than running off. Common solvents used include D-limonene, aliphatic alkanes, and acetone.
Friedel–Crafts reaction, a type of organic reaction developed by Charles Friedel and James Crafts in 1877. Friedel's law, named after Georges Friedel, the crystallographer, is a property of Fourier transforms of real functions. Friedel's salt, discovered by Georges Friedel, is an anion exchanger mineral belonging to the family of the layered ...
The glue is sticky when hot, and solidifies in a few seconds to one minute. Hot-melt adhesives can also be applied by dipping or spraying, and are popular with hobbyists and crafters both for affixing and as an inexpensive alternative to resin casting. In industrial use, hot-melt adhesives provide several advantages over solvent-based adhesives.
Fantastik is an American trademarked [2] brand of cleaning products produced by S. C. Johnson & Son. The company acquired Fantastik as part of a package of products acquired in 1998. These products include: Antibacterial Heavy Duty, Bleach, Antibacterial Lemon Power, Orange Action, Oxy Power, Orange Action Wipes, and Multi-Surface Wipes.
Friedel's wife's father was the engineer, Charles Combes. [4] The Friedel family is a rich lineage of French scientists: Georges Friedel (1865–1933), French crystallographer and mineralogist; son of Charles; Edmond Friedel (1895–1972), French Polytechnician and mining engineer, founder of BRGM, the French geological survey; son of Georges