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High-density polyethylene ( HDPE) or polyethylene high-density ( PEHD) is a thermoplastic polymer produced from the monomer ethylene. It is sometimes called "alkathene" or "polythene" when used for HDPE pipes. [1] With a high strength-to-density ratio, HDPE is used in the production of plastic bottles, corrosion-resistant piping, geomembranes ...
Polyethylene terephthalate (or poly (ethylene terephthalate), PET, PETE, or the obsolete PETP or PET-P ), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, and thermoforming for manufacturing, and in combination with glass fibre for engineering resins. [5]
- (C₁₀H₈O₄)ₙ
- 10–50 kg/mol, varies
- > 250 °C (482 °F; 523 K) 260 °C
- Practically insoluble
Polypropylene (PP), also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene. Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly ...
Ketamine is a dissociative anesthetic used medically for induction and maintenance of anesthesia. It is also used as a treatment for depression and pain management.[18] It is a novel compound that was derived from phencyclidine in 1962 in pursuit of a safer anesthetic with fewer hallucinogenic effects.[19][20] At anesthetic doses, ketamine ...
- C₁₃H₁₆ClNO
- Ketalar, others
- AU: B3
The koala ( Phascolarctos cinereus ), sometimes called the koala bear, is an arboreal herbivorous marsupial native to Australia. It is the only extant representative of the family Phascolarctidae and its closest living relatives are the wombats. The koala is found in coastal areas of the mainland's eastern and southern regions, inhabiting ...
On November 22, 1963, John F. Kennedy, the 35th president of the United States, was assassinated while riding in a presidential motorcade through Dealey Plaza in Dallas, Texas.Kennedy was in the vehicle with his wife, Jacqueline, Texas Governor John Connally, and Connally's wife, Nellie, when he was fatally shot from the nearby Texas School Book Depository by former U.S. Marine Lee Harvey Oswald.
Leave the World Behind is a 2023 American apocalyptic psychological thriller film written and directed by Sam Esmail.It is based on the 2020 novel by Rumaan Alam.The film stars Julia Roberts, Mahershala Ali, Ethan Hawke, Myha'la Herrold, and Kevin Bacon as they attempt to make sense of the sequential rapid breakdown in phones, television, and other regularly used technology which points to a ...
