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Like many other arsenic containing compounds, potassium arsenite is highly toxic and carcinogenic to humans. Potassium arsenite forms the basis of Fowler’s solution, which was historically used as a medicinal tonic, but due to its toxic nature its use was discontinued. [4] [5] Potassium arsenite is still, however, used as a rodenticide. [6]
Monopotassium arsenate is the inorganic compound with the formula KH 2 AsO 4. A white solid, this salt is used to prepared other arsenic-containing compounds, mainly pesticides. It is prepared by calcining arsenic oxide and potassium nitrate, followed by extraction with water. [1]
Potassium arsenate usually refers to tripotassium arsenate K 3 AsO 4 but may also refer to: Monopotassium arsenate, KH 2 AsO 4; Dipotassium arsenate, K 2 HAsO 4; See ...
Arsenic biochemistry is the set of biochemical processes that can use arsenic or its compounds, such as arsenate. Arsenic is a moderately abundant element in Earth's crust , and although many arsenic compounds are often considered highly toxic to most life, a wide variety of organoarsenic compounds are produced biologically and various organic ...
Fowler's solution first introduced in the 18th century was made up from As 2 O 3 [9] as a solution of potassium meta-arsenite, KAsO 2. [ 10 ] Arsenic in its trioxide, As 2 O 3 , (brand name Trisenox, ATO) is used as a chemotherapy drug against acute promyelocytic leukaemia (APL) , a type of myeloid leukemia. [ 11 ]
Insecticidal soap is used to control many plant insect pests. Soap has been used for more than 200 years as an insect control. [1] Because insecticidal soap works on direct contact with pests via the disruption of cell membranes when the insect is penetrated with fatty acids, the insect's cells leak their contents causing the insect to dehydrate and die. [2]
Plants in the Umbel family (carrots, parsley, dill) are known for this, as is sweet alyssum.Using trap crops when companion planting in order to lure insects away from certain crops is preferred ...
[1] [2] Thomas Fowler (1736–1801) of Stafford, England, proposed the solution in 1786 as a substitute for a patent medicine, "tasteless ague drop". From 1865, Fowler's solution was a leukemia treatment. [2] [3] From 1905, inorganic arsenicals like Fowler's solution saw diminished use as attention turned to organic arsenicals, starting with ...