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2,5-Hexanedione (Acetonylacetone) is an aliphatic diketone. It is a colorless liquid. [1] In humans, it is a toxic metabolite of hexane and of 2-hexanone.
cis-1,2-disub. alkenes 1660 medium trans-1,2-disub. alkenes 1675 medium trisub., tetrasub. alkenes 1670 weak conjugated C═C dienes 1600 strong 1650 strong with benzene ring 1625 strong with C═O 1600 strong C═C (both sp 2) any 1640–1680 medium aromatic C═C any 1450 weak to strong (usually 3 or 4) 1500 1580 1600 C≡C terminal alkynes
1,5-Hexadiene is produced commercially by the ethenolysis of 1,5-cyclooctadiene: [1] (CH 2 CH=CHCH 2) 2 + 2 CH 2 =CH 2 → 2 (CH 2) 2 CH=CH 2. The catalyst is derived from Re 2 O 7 on alumina. A laboratory-scale preparation involves reductive coupling of allyl chloride using magnesium: [2] 2 ClCH 2 CH=CH 2 + Mg → (CH 2) 2 (CH=CH 2) 2 + MgCl 2
It dissolves cellulose nitrate, vinyl polymers and copolymers, and natural and synthetic resins. It is recommended as a solvent because it is photochemically inactive; [5] however it has a very low safe threshold limit value. 2-Hexanone is absorbed through the lungs, orally and dermally and its metabolite, 2,5-hexanedione, is neurotoxic. [6]
Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) is the measurement of the interaction of infrared radiation with matter by absorption, emission, or reflection. It is used to study and identify chemical substances or functional groups in solid, liquid, or gaseous forms. It can be used to characterize new materials or identify ...
While many fast-food joints claim they serve “real” chicken, some still rely on antibiotic-laden, factory-farmed mystery meat. Here are 7 chains that actually use high-quality, real chicken.
Ariana Grande isn't saying goodbye to touring for good — just for now.. Speaking with Variety in an interview published on Wednesday, Dec. 17, the Wicked star spoke about the possibility of ...
IRPD spectroscopy has been shown to use electron ionization, corona discharge, and electrospray ionization to obtain spectra of volatile and nonvolatile compounds. [2] [3] Ionized gases trapped in a mass spectrometer can be studied without the need of a solvent as in infrared spectroscopy. [4] Schematic diagram of infrared photodissociation ...