Oxybenzone or benzophenone-3 (trade names Milestab 9, Eusolex 4360, Escalol 567, KAHSCREEN BZ-3) is an organic compound. It is a white solid that is readily soluble in most organic solvents. Oxybenzone belongs to the class of aromatic ketones known as benzophenones. It is a component of many sunscreen lotions.
Structure and electronic structure
Being a conjugated molecule, oxybenzone absorbs at lower energies than many aromatic molecules. As in related compounds, the hydroxyl group is hydrogen bonded to the ketone. This interaction contributes to oxybenzone's light-absorption properties. At low temperatures, however, it is possible to observe both the phosphorescence and the triplet-triplet absorption spectrum. At 175 K the triplet lifetime is 24 ns. The short lifetime has been attributed to a fast intramolecular hydrogen transfer between the oxygen of the C=O and the OH.
Production
Oxybenzone is produced by Friedel-Crafts reaction of benzoyl chloride with 3-methoxyphenol(3-hydroxyanisole).
Water (H
2O) is the most abundant compound on Earth's surface, covering 70 percent of the planet. In nature, water exists in liquid, solid, and gaseous states. It is in dynamic equilibrium between the liquid and gas states at standard temperature and pressure. At room temperature, it is a tasteless and odorless liquid, nearly colorless with a hint of blue. Many substances dissolve in water and it is commonly referred to as the universal solvent. Because of this, water in nature and in use is rarely pure and some properties may vary from those of the pure substance. However, there are also many compounds that are essentially, if not completely, insoluble in water. Water is the only common substance found naturally in all three common states of matter and it is essential for all life on Earth. Water makes up 55% to 78% of the human body.
Forms of water
H2O (1929) is a short silent film by photographer Ralph Steiner. It is a cinematic tone poem showing water in its many forms.
In 2005, H2O was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".
External links
Candice Hillebrand (also known as Candîce) (born 19 January 1977, Johannesburg, Transvaal, South Africa) is a South African-born actress and singer-songwriter. She has also worked as a presenter and model. She is recently known for playing Nina Williams in the 2010 Tekken live-action movie, based on the popular video game series, Tekken.
Career
Hillebrand's on-screen career started early in life by hosting South African children's television channel, KTV, at the age of 6. Hillebrand went on to appear in numerous commercials and has acted in both TV and film. In 2002, she signed with Musketeer Records and released her debut album, Chasing Your Tomorrows in 2003. She has also appeared in Maxim magazine.
In 2008, Hillebrand was offered the role of Nina Williams, a character in the film adaptation of the popular video game series, Tekken.
Discography
Albums
Singles
Filmography
"Hello" is a song by English singer Adele. It was released on 23 October 2015 by XL Recordings as the lead single from her third studio album, 25 (2015). Adele co-wrote the song with her producer, Greg Kurstin. "Hello" is a piano ballad with soul influences, and lyrics that discuss themes of nostalgia and regret. Upon release, the song was well received by music critics, who compared it favourably to Adele's previous work and praised the song's lyrics and Adele's vocals.
"Hello" attained international commercial success reaching number one in almost every country it charted in, including the United Kingdom, where it became her second UK number-one single, following "Someone like You", and has the largest opening week sales in three years. In the United States, "Hello" debuted atop the Billboard Hot 100, becoming Adele's fourth number-one on the chart and breaking several records, including becoming the first song to sell over a million digital copies in a week.
The accompanying music video was directed by Xavier Dolan and co-stars Adele and Tristan Wilds. The music video for the song broke the Vevo Record by achieving over 27.7 million views within a 24-hour span, held previously by Taylor Swift's "Bad Blood" which accumulated 20.1 million views in that timeframe. It also broke the record for shortest time to attain 100 million Vevo views, previously held by Miley Cyrus' "Wrecking Ball", as well as shortest time to reach 1 billion YouTube views (88 days). Adele promoted the song with a live performance on a BBC one-hour special, entitled Adele at the BBC.
Relapse is the sixth studio album by American rapper Eminem. The album was released on May 19, 2009 under Shady Records, Aftermath Entertainment, and Interscope Records. It was his first album of original material since Encore (2004), following a four-year hiatus from recording due to his writer's block and an addiction to prescription sleeping medication. Recording sessions for the album took place during 2005 to 2009 at several recording studios, and Dr. Dre, Mark Batson, and Eminem handled production. Conceptually, Relapse concerns the ending of his drug rehabilitation, rapping after a non-fictional relapse, and the return of his Slim Shady alter-ego.
One of the most anticipated album releases of 2009, Relapse debuted at number one on the US Billboard 200 chart, selling 608,000 copies in its first week. It produced three singles that attained chart success and has been certified double platinum by the Recording Industry Association of America. The album received mixed reviews from most music critics, who were divided in their responses towards Eminem's lyrics. It has sold more than three million copies in the United States and more than ten million copies worldwide.