A mixture of 8 g of St-l%DVB copolymer (S) functionalized with amino groups (2 mmol amino groups/g polymer), phenylphosphinic acid, benzaldehyde (S2) [or propionaldehyde
(S4)] in 50 ml tetrahydrofuran was maintained under stirring for 24 h at 55[degrees]C.
The wood industry is most interested in methanol, formaldehyde, acetaldehyde, propionaldehyde
, acrolein, and phenol because these are listed HAPs and specified in the Plywood and Composite Panel Maximum Achievable Control Technology (MACT) rule.
4 20 14 (1) Data for ALDH1A1 and ALDH2*1 from Klyosov, 1996; data for ALDH2*2 oxidation of propionaldehyde
from Farres et al.
acetaldehyde, benzaldehyde, butyraldehyde, formaldehyde, isovaleraldehyde, n-hexaldehyde, propionaldehyde
Possible TRI Chemicals Used or Generated in Processes Metal and Metal Fume Gaseous Emissions * Copper and Compounds Aniline Chromium and Compounds Acetaldehyde Lead and Compounds Ammonia Manganese and Compounds Butyraldehyde Zinc and Compounds Propionaldehyde
Zinc Dust/Fume Benzene Aluminum Dust/Fume Formaldehyde Cobalt and Compounds n-Hexane Nickel and Compounds Naphthalene Phenol Styrene Triethylamine Toluene Xylene (mixed isomers) * Based on CERP/Technikon LLC review of test data as of May 2007.
Johnson (2008) analyzed the oxidation behavior of SI primary reference fuels with propionaldehyde
and DTBP as an additive.
10[micro]l of mPEG- propionaldehyde
conjugated D-amino acid oxidase had been injected into HPLC column to know the change in retention time using same conditions as above.
Different hardening agents were used, formaldehyde being the most effective in terms of low-water absorption, followed by furfural and propionaldehyde
Contents include: Alpha-hexylcinnamaldehyde, geraniol, propionaldehyde
2-(4-butylphenyl) 4-(4-hydroxy-4- methylpentyl) cyclohex-3-enecarb- aldehyde.
Products: Solvents and intermediates including: butanol, n-buty-ralde-hyde, 2-ethylhexanol, isobutanol, propanol, propionaldehyde
, butyl acetate, isobutyl acetate, propyl acetate, isopropyl acetate, 2-ethylhexoic acid, propionic acid, isopropanol, MIBK, MIBC, DIBK
Like fenamiphos, aldicarb (2-methyl-2-(methythio) propionaldehyde
, O-(methylcarbamoyl)oxime) degrades into aldicarb sulfoxide and aldicarb sulfone.
The major degradation products of MTBE by conventional ozonation and the advanced oxidation process (ozone/hydrogen peroxide) under drinking water treatment conditions are TBF, TBA, 2-methoxy-2-methyl propionaldehyde
, acetone, methyl acetate, hydroxy butyraldehyde, and formaldehyde.