نتایج جستجو برای: nonylphenoxy acetic acid

تعداد نتایج: 748337  

Hocine Kadi, Patrick Sharrock Ramdane Moussaoui, Sadia Djadoun

In this study, Microwave-Assisted Solvent Extraction (MASE) was used to recover oil residues from pomace olive using acidic hexane. Results obtained demonstrated that oil extraction yield increased with time, the amount of acetic acid in hexane and power radiation. For both radiation powers used (170 and 510W), the optimal extraction time and most interesting content of acetic acid in hexan...

A. R. Abbasi A. R. Badiei, G. Mohammadi Ziarani J. Gholami

Vanadium supported on highly ordered nanoporous silica (VOx-LUS-1) was synthesized and characterized by XRD, Nitrogen adsorption‑desorption isotherms and UV-visible spectrophotometer. Direct oxidation of benzene to phenol in liquid phase by H2O2 peroxide were examined by using various solvents (methanol, acetone, acetic acid, acetonitryl). The maximum yield (25%) and selectivity (73%) of the ph...

Journal: :Clinical chemistry 1961
B ZAK E EPSTEIN

R ECENTLY a new reagent was proposed for the determination of cholesterol (1, 2). This reagent was purported to be saturated ferrous sulfate in glacial acetic acid. Since it has been reported that ferrous sulfate is qualitatively insoluble in anhydrous acetic acid (3, 4) and that ferrous iron is “subject to pronounced air oxidation in glacial acetic acid” (5), it was felt that several factors s...

2016
Qingli Qian Jingjing Zhang Meng Cui Buxing Han

Acetic acid is an important bulk chemical that is currently produced via methanol carbonylation using fossil based CO. Synthesis of acetic acid from the renewable and cheap CO2 is of great importance, but state of the art routes encounter difficulties, especially in reaction selectivity and activity. Here we report a route to produce acetic acid from CO2, methanol and H2. The reaction can be ef...

2011
J. PEYDECASTAING

The global reaction between acetic anhydride and a fatty acid yields, at equilibrium, an asymmetric acetic-aliphatic anhydride in a medium containing finally: acetic-fatty anhydride, acetic anhydride, fatty acid, acetic acid and fatty anhydride. No solvent or catalyst was used to evaluate the impact of the actual reactivity of the anhydrides. The competition between the formation of acetyl and ...

2002

Male and female true armyworm moths, Pseudaletia unipuncta (Haworth), were captured in traps baited with the combination of acetic acid and 3-methyl-1-butanol and placed near fields of corn ( Zea mays ). In a comparison of these chemicals presented individually and together, significantly greater numbers of moths were captured in traps baited with acetic acid and 3-methyl-1-butanol, compared to...

Journal: :Anticancer research 2013
Friederike Hoellen Michael K Bohlmann Joachim Brade Achim Rody Klaus Diedrich Wolf-Diedrich Husstedt Amadeus Hornemann

BACKGROUND Cervical cancer prevention is performed by taking Pap smears. The correct execution of the smear is crucial as an inadequate smear might result in underdiagnosis. The second means of cervical cancer prevention is visual inspection of the cervix uteri with acetic acid, while often both methods are combined. We investigated whether the application of acetic acid compromises the Pap sme...

2012
Ana Kitanovic Felix Bonowski Florian Heigwer Peter Ruoff Igor Kitanovic Christin Ungewiss Stefan Wölfl

Metabolic pathways play an indispensable role in supplying cellular systems with energy and molecular building blocks for growth, maintenance and repair and are tightly linked with lifespan and systems stability of cells. For optimal growth and survival cells rapidly adopt to environmental changes. Accumulation of acetic acid in stationary phase budding yeast cultures is considered to be a prim...

Journal: :The Journal of chemical physics 2006
Yohannes Abate P D Kleiber

We have studied the structure and photodissociation of Mg(+)-acetic acid clusters. Ab initio calculations suggest four relatively strongly bound ground state isomers for the [MgC(2)H(4)O(2)](+) complex. These isomers include the cis and trans forms of the Mg(+)-acetic acid association complex with Mg(+) bonded to the carbonyl O atom of acetic acid, the Mg(+)-acetic acid association complex with...

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