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This term was coined in 1989 by what is now the Sense of Smell Institute (SSI), a division of The Fragrance Foundation. [4] The SSI defines aromachology as "a concept based on systematic, scientific data collected under controlled conditions". The term is defined as the scientifically observable influence of smell on emotions and moods.
Arsenic trioxide is an inorganic compound with the formula As 2 O 3. [5] As an industrial chemical, its major uses include the manufacture of wood preservatives ...
In its standard state arsine is a colorless, denser-than-air gas that is slightly soluble in water (2% at 20 °C) [1] and in many organic solvents as well. [citation needed] Arsine itself is odorless, [5] but it oxidizes in air and this creates a slight garlic or fish-like scent when the compound is present above 0.5 ppm. [6]
Arsenic trioxide powder.. Compounds of arsenic resemble in some respects those of phosphorus which occupies the same group (column) of the periodic table.The most common oxidation states for arsenic are: −3 in the arsenides, which are alloy-like intermetallic compounds, +3 in the arsenites, and +5 in the arsenates and most organoarsenic compounds.
Arsenic oxide may refer to any of the following: Arsenic dioxide, As 2 O 4; Arsenic trioxide, As 2 O 3; Arsenic pentoxide, As 2 O 5
Arsenic trichloride can be prepared by the reaction of arsenic oxide and sulfur monochloride. This method requires simple apparatus and proceeds efficiently: [8] 2 As 2 O 3 + 6 S 2 Cl 2 → 4 AsCl 3 + 3 SO 2 + 9 S. A convenient laboratory method is refluxing arsenic(III) oxide with thionyl chloride: [9] 2 As 2 O 3 + 3 SOCl 2 → 2 AsCl 3 + 3 SO 2
The threshold value is the concentration at which an aroma or taste can be detected (air, water and fat).; The recognition threshold or arousal threshold of olfactory neurons is the concentration at which you can identify an odor (air, water and fat).
The main olfactory bulb's pulses in the amygdala are used to pair odors to names and recognize odor to odor differences. [17] [18] The bed nuclei of the stria terminalis (BNST) act as the information pathway between the amygdala and hypothalamus, as well as the hypothalamus and pituitary gland. BNST abnormalities often lead to sexual confusion ...