10 LIVROS EM POLONÊS RELACIONADOS COM «BIACETYL»
Descubra o uso de
biacetyl na seguinte seleção bibliográfica. Livros relacionados com
biacetyl e pequenos extratos deles para contextualizar o seu uso na literatura.
1
1,4-Cycloaddition Reaction: The Diels-Alder Reaction in ... - Strona 386
1 :l-ADDUCTS FROM 1,2-DIRET0NES AND TRIVALENT PHOSFHORUS COMPOUNDS Diketone Phosphorus compound M.p. (QC) B.p. (°C)/mm Yield (°/,,)“ Reference Biacetyl P(OCH3)3 — 54—58/0.2 ca. 95 13, 15, 60, 63, 92,97, 101, 102, ...
2
Photochemistry - Strona 72
Cobalt The dioxygen adduct of Co(II) tetraphenylporphyr in is reported to undergo facile photoinduced dissociation of O.138 Biacetyl-sensitized photodecomposition of aqueous solutions of [Co(phen)zptc]z+, trana(O) -[Co (pic) 2phen] + , and ...
D. Bryce-Smith, Royal Society of Chemistry, 1987
3
Survey of Progress in Chemistry - Tom 2 - Strona 272
The effect of biacetyl was best documented in the case of acetone (Heicklen and Noyes, 1959). It was shown that a pressure of 0.5 mm biacetyl is sufficient to quench all acetone phosphorescence but that acetone fluorescence remains ...
4
The Sensitization of Biacetyl Fluorescence in Fluid Solutions
The sensitization of biacetyl fluorescence in aerated cyclohexane solutions was studied at 25C, using naphthalene, benzene and acetone as donors.
J. T. Dubois, B. Stevens, AEROSPACE RESEARCH LABS WRIGHT-PATTERSON AFB OHIO., 1962
5
The Triplet State - Strona 443
We have studied (4-40) x 10~5m biacetyl in benzene solution using a sodium nitrite filter to isolate the visible range, and found a spectrum similar to that given by these authors; however, a permanent consumption of 1-2% biacetyl per flash ...
6
Advances in Luminescence Spectroscopy: A Symposium
The recent thrust of their work has been with biacetyl as the acceptor molecule, a species that is certainly an anomoly in photophysics. It is the only aliphatic molecule known to phosphoresce in fluid solution and has been termed "pathologic" ...
L. J. Cline Love, D. Eastwood, 1985
7
The Quenching of Biacetyl Phosphorescence by Alkenes. A ...
Rate constants for the quenching of biacetyl phosphorescence by alkenes at room temperature in benzene have been measured. Quenching constants correlate with the ionization potentials of the alkenes.
Guilford Jones (II.), Mahalingam Santhanam, Sheau-Hwa Chiang, 1979
8
Decomposition and Isomerization of Organic Compounds - Strona 352
The difference in the effect, caused by biacetyl, at the two wavelengths was interpreted by the assumption that the higher vibrational levels of the excited singlet state, involved at the shorter wavelengths, are less effective in respect of energy ...
R.G. Compton, C.H. Bamford, C.F.H. Tipper†, 1971
9
Radiationless Transitions - Strona 67
crossing to collisional effects, as well as similar gas phase (Anderson and Parmenter, 1970; Okabe and Noyes, 1957) and solution phase (BackstrOm and Sandros, 1960) fluorescence quantum yields were taken to indicate that biacetyl ...
10
Selective Sample Handling and Detection in ... - Strona 316
K. Zech, R.W. Frei†. phosphorophore. First biacetyl is excited by means of light absorption directly in an excited singlet state. Subsequently biacetyl falls down to its triplet state T1. In absence of a quencher, the following step is the return to the ...
K. Zech, R.W. Frei†, 1989
3 NOTÍCIAS NAS QUAIS SE INCLUI O TERMO «BIACETYL»
Conheça de que se fala nos meios de comunicação nacionais e internacionais e como se utiliza o termo
biacetyl no contexto das seguintes notícias.
Microwave Popcorn Butter Flavor Has Alzheimer's Link, Says Science
... from heavy exposure to the additive biacetyl (or diacetyl), which helps give things (including, true story, Chardonnay) that buttery flavor without, y'know, butter. «Gothamist, ago 12»
Vieme čo jeme?
Sú to tri prchavé aromatické látky - biacetyl, tartaric a mliečny acetoin. Odkiaľ sa maslo vzalo? Kocka masla na belgickom trhu stojí dvakrát viac, než je cena ... «SME.sk, out 11»
Woman sues, says 16 years of inhaling microwave popcorn vapors …
The Far Rockaway woman is one of a handful of consumers who has sued over exposure to the additive biacetyl, which gives popcorn its buttery taste. Several ... «New York Daily News, mai 10»
