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Sodium dodecyl sulfate ( SDS) or sodium lauryl sulfate ( SLS ), sometimes written sodium laurilsulfate, is an organic compound with the formula CH3(CH2)11OSO3Na and structure H 3 C − (CH 2) 11−O− S (=O) 2−O−Na+. It is an anionic surfactant used in many cleaning and hygiene products. This compound is the sodium salt of the 12-carbon ...
Sodium laureth sulfate ( SLES ), an accepted contraction of sodium lauryl ether sulfate ( SLES ), also called sodium alkylethersulfate, is an anionic detergent and surfactant found in many personal care products ( soaps, shampoos, toothpaste, etc.) and for industrial uses. SLES is an inexpensive and very effective foaming agent. [1]
The Space Launch System ( SLS) is an American super heavy-lift expendable launch vehicle used by NASA. As the primary launch vehicle of the Artemis Moon landing program, SLS is designed to launch the crewed Orion spacecraft on a trans-lunar trajectory. The first SLS launch was the uncrewed Artemis 1, which took place on 16 November 2022.
Sjögren–Larsson syndrome is a rare autosomal recessive form of ichthyosis with neurological symptoms. [1] : 485 [2] : 564 [3] It can be identified by a triad of medical disorders. The first is ichthyosis, which is a buildup of skin to form a scale-like covering that causes dry skin and other problems. The second identifier is paraplegia ...
A liquid rocket booster ( LRB) uses liquid fuel and oxidizer to give a liquid-propellant or hybrid rocket an extra boost at take-off, and/or increase the total payload that can be carried. It is attached to the side of a rocket. Unlike solid rocket boosters, LRBs can be throttled down if the engines are designed to allow it, and can be shut ...
LH 2 / LOX. The Space Launch System core stage, or simply core stage, is the main stage of the American Space Launch System (SLS) rocket, built by The Boeing Company in the NASA Michoud Assembly Facility. At 65 m (212 ft) tall and 8.4 m (27.6 ft) in diameter, the core stage contains approximately 987 t (2,177,000 lb) of its liquid hydrogen and ...
The word "surfactant" is a blend of surface-active agent, [1] coined c. 1950. [2] As they consist of a water-repellent and a water-attracting part, they enable water and oil to mix; they can form foam and facilitate the detachment of dirt. Surfactants are among the most widespread and commercially important chemicals.
Shit life syndrome (SLS) is a phrase used by physicians in the United Kingdom and the United States for the effect that a variety of poverty or abuse-induced disorders can have on patients. History. Sarah O'Connor's 2017 article for the Financial Times "Left behind: can anyone save the towns the economy forgot?"