Search results
Results from the WOW.Com Content Network
2,4-Dichlorophenoxyacetic acid is an organic compound with the chemical formula Cl 2 C 6 H 3 OCH 2 CO 2 H.It is usually referred to by its ISO common name 2,4-D. [4] It is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth, but most grasses such as cereals, lawn turf, and grassland are relatively unaffected.
2,4-DB or 4-(2,4-dichlorophenoxy)butyric acid is a selective systemic phenoxy herbicide used to control many annual and perennial broad-leaf weeds in alfalfa, peanuts, soybeans, and other crops. Its active metabolite , 2,4-D , inhibits growth at the tips of stems and roots.
2,4,5-Trichlorophenoxyacetic acid (also known as 2,4,5-T), a synthetic auxin, is a chlorophenoxy acetic acid herbicide used to defoliate broad-leafed plants. It was developed in the late 1940s, synthesized by reaction of 2,4,5-Trichlorophenol and chloroacetic acid. It was widely used in the agricultural industry until being phased out, starting ...
2,4-Dichlorophenol (2,4-DCP) is a chlorinated derivative of phenol with the molecular formula Cl 2 C 6 H 3 OH. It is a white solid that is mildly acidic (pK a = 7.9). It is produced on a large scale as a precursor to the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D).
2,4-Dithiapentane is the dimethyldithioacetal of formaldehyde. Its synthesis was first reported in 1941. Its synthesis was first reported in 1941. [ 1 ] [ 2 ] It is industrially prepared by the acid-catalyzed condensation of methyl mercaptan , the main aromatic compound in both halitosis and foot odor and a secondary compound in flatulence ...
2,4-Dinitrotoluene (DNT) or dinitro is an organic compound with the formula C 7 H 6 N 2 O 4. This pale yellow crystalline solid is well known as a precursor to trinitrotoluene (TNT) but is mainly produced as a precursor to toluene diisocyanate .
Economics (/ ˌ ɛ k ə ˈ n ɒ m ɪ k s, ˌ iː k ə-/) [1] [2] is a social science that studies the production, distribution, and consumption of goods and services. [3] [4] Economics focuses on the behaviour and interactions of economic agents and how economies work.
Below is the grading system found to be most commonly used in United States public high schools, according to the 2009 High School Transcript Study. [2] This is the most used grading system; however, there are some schools that use an edited version of the college system, which means 89.5 or above becomes an A average, 79.5 becomes a B, and so on.