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The term gum turpentine may also refer to crude turpentine, which may cause some confusion. Turpentine may alternatively be extracted from destructive distillation of pine wood, [3] such as shredded pine stumps, roots, and slash, using the light end of the heavy naphtha fraction (boiling between 90 and 115 °C or 195 and 240 °F) from a crude ...
Humans have used natural gums for various purposes, including chewing and the manufacturing of a wide range of products – such as varnish and lacquerware.Before the invention of synthetic equivalents, trade in gum formed part of the economy in places such as the Arabian peninsula (whence the name "gum arabic"), West Africa, [3] East Africa and northern New Zealand ().
This is a list of chewing gum brands in the world. Chewing gum is a type of gum made for chewing, and dates back at least 5,000 years. Modern chewing gum was originally made of chicle, a natural latex. By the 1960s, chicle was replaced by butadiene-based synthetic rubber which is cheaper to manufacture. Most chewing gums are considered polymers ...
Major uses of solvents are in paints, paint removers, inks, and dry cleaning. [2] Specific uses for organic solvents are in dry cleaning (e.g. tetrachloroethylene ); as paint thinners ( toluene , turpentine ); as nail polish removers and solvents of glue ( acetone , methyl acetate , ethyl acetate ); in spot removers ( hexane , petrol ether); in ...
In 1764, François Fresnau discovered that turpentine was a rubber solvent. Giovanni Fabbroni is credited with the discovery of naphtha as a rubber solvent in 1779. [ 16 ] [ 17 ] Charles Goodyear redeveloped vulcanization in 1839, although Mesoamericans had used stabilized rubber for balls and other objects as early as 1600 BC.
PUR Gum is a brand of aspartame-free gum produced by The PUR Company Inc. and founded in 2010 by Jay Klein in Toronto, Ontario, Canada. [2] [3] PUR gum and mints are manufactured in Switzerland, [3] distributed in Canada, and sold in over 25 countries worldwide. [4] PUR gum and mints are also sold through online outlets such as Amazon. [3]
The traditional technique for applying pure tung oil is to dilute the oil 1:1 with solvent, then apply a succession of very thin films with a soft, lint-free cloth such as tee-shirt cotton. Diluents range from traditional spirits of turpentine to any of the new citrus-based thinners to naphtha. The choice of thinner should be guided by how fast ...
Eucalyptus grandis, commonly known as the flooded gum or rose gum, [2] is a tall tree with smooth bark, rough at the base fibrous or flaky, grey to grey-brown.At maturity, it reaches 50 metres (160 feet) tall, though the largest specimens can exceed 80 metres (260 feet) tall.
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