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A naphthalene molecule can be viewed as the fusion of a pair of benzene rings. (In organic chemistry, rings are fused if they share two or more atoms.) As such, naphthalene is classified as a benzenoid polycyclic aromatic hydrocarbon (PAH). [19] The eight carbon atoms that are not shared by the two rings carry one hydrogen atom each.
Both naphthalene and 1,4-dichlorobenzene undergo sublimation, meaning that they transition from a solid state directly into a gas; this gas is toxic to moths and moth larvae. [ 1 ] Due to the health risks of 1,4-dichlorobenzene, and flammability of naphthalene, other substances like camphor are sometimes used.
English: Naphthalene is an organic compound with formula C 10H 8. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odour that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings.
Naphthalene is a major component of some mothballs.It repels moths as well as some animals. [citation needed]Since mothballs that contain naphthalene are considered hazards, safer alternatives have been developed, such as the use of 1,4-dichlorobenzene, however, 1,4-dichlorobenzene has been declared as a potential neurotoxin. 1,4-dichlorobenzene has been linked to potentially causing ...
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Azulene itself is unstable to strong light, eventually isomerizing to naphthalene. [16] 1-Hydroxyazulene is an unstable green oil and it does not show keto–enol tautomerism. [17] In general, electron-withdrawing groups redshift the compound's color, whereas electron-releasing groups blueshift it.
The NYPD released new photos of a person of interest they want to speak to in connection to the Dec. 4, 2024 shooting death of UnitedHealthcare CEO Brian Thompson. ... The backpack is now being ...
Image credits: Photoglob Zürich "The product name Kodachrome resurfaced in the 1930s with a three-color chromogenic process, a variant that we still use today," Osterman continues.