An Isolable Potassium Salt of a Borasilene-Chloride Adduct

2017 ◽  
Vol 56 (16) ◽  
pp. 4593-4597 ◽  
Author(s):  
Yuko Suzuki ◽  
Shintaro Ishida ◽  
Sota Sato ◽  
Hiroyuki Isobe ◽  
Takeaki Iwamoto
Keyword(s):  
Potassium Salt ◽  
Chloride Adduct

An Isolable Potassium Salt of a Borasilene-Chloride Adduct

2017 ◽  
Vol 129 (16) ◽  
pp. 4664-4668 ◽  
Author(s):  
Yuko Suzuki ◽  
Shintaro Ishida ◽  
Sota Sato ◽  
Hiroyuki Isobe ◽  
Takeaki Iwamoto
Keyword(s):  
Potassium Salt ◽  
Chloride Adduct

The Coordination Chemistry of Phosphoryl Compounds Containing the — N(CH3)2 Group, Part VIII

1972 ◽  
Vol 27 (7) ◽  
pp. 759-763 ◽  
Author(s):  
M. W. G. De Bolster ◽  
W. L. Groeneveld
Keyword(s):  
Coordination Chemistry ◽  
General Formula ◽  
Ligand Field ◽  
Chemical Analyses ◽  
X Ray ◽  
Physical Measurements ◽  
Ligand Field Spectra ◽  
Chloride Adduct ◽  
Ligand Field Parameters ◽  
Group Part

A number of new solvates and adducts containing bisphenyldimethylaminophosphine oxide is reported. The solvates have the general formula M[(C6H5)2P(O)N(CH3)2]42+(anion-)2, in which M = Mg, Ca, Mn, Fe, Co, Ni, Cu, Zn and Cd, and the anions are ClO4- and BF4-. The adducts have the general formula M[(C6H5)2P(O)N(CH3)2]2Cl2, where M stands for the same series of metals.The compounds are characterized and identified by chemical analyses and physical measurements.Ligand-field and vibrational spectra have been investigated; values for the ligand-field parameters are reported. It is concluded that coordination takes place via the oxygen atom of the ligand.X-ray powder patterns were used in combination with ligand-field spectra to deduce the coordination around the metal ions.The interesting behaviour of the nickel (II) chloride adduct upon heating is discussed and it is shown that both a square pyramidal and a tetrahedral modification exists.

scholarly journals Submist is Effective for Propagation of Korean Lilac and Inkberry by Stem Cuttings

2018 ◽  
Vol 28 (3) ◽  
pp. 378-381
Author(s):  
Bryan J. Peterson ◽  
Stephanie E. Burnett ◽  
Olivia Sanchez
Keyword(s):  
Butyric Acid ◽  
Woody Plants ◽  
Root Biomass ◽  
Potassium Salt ◽  
Foliar Nutrients ◽  
Stem Cuttings ◽  
Rooted Cuttings ◽  
Soilless Substrate

Although overhead mist revolutionized the propagation industry, it does suffer from potential drawbacks that include the application of large volumes of water, potentially unsanitary conditions, irregular misting coverage, and leaching of foliar nutrients. We explored the feasibility of submist as an alternative as it might avoid these problems by applying water exclusively from below the cutting, which is inserted basally into an enclosed rooting chamber. We propagated cuttings of korean lilac (Syringa pubescens ssp. patula) and inkberry (Ilex glabra) using both overhead mist and submist to compare effectiveness of the systems. Cuttings of korean lilac were wounded and dipped basally into 8000 mg·L−1 of the potassium salt of indole-3-butyric acid (K-IBA), and those in the overhead mist systems were inserted into coarse perlite. Cuttings of inkberry were wounded and treated with 5000 mg·L−1 K-IBA, and those in the overhead mist systems were inserted into 50:50 peat:perlite (by vol). Cuttings of korean lilac in the submist systems produced more than twice as many roots as cuttings in the overhead mist systems, with roots more than 2.6 times the length. Similarly, cuttings of inkberry in the submist systems produced more than three times the root counts and root lengths as cuttings in the overhead mist systems. For korean lilac, root dry weights averaged 58 mg for cuttings in the submist system, compared with only 18 mg among cuttings receiving overhead mist. Likewise, root dry weights averaged 70 and 7 mg for cuttings of inkberry propagated by submist and overhead mist, respectively. Rooted cuttings of korean lilac transplanted well into a soilless substrate, where they more than tripled their root biomass to 218 mg (vs. 59 mg for cuttings transplanted from overhead mist). We did not evaluate transplant performance of inkberry. Our results show that submist systems might merit consideration for the propagation of woody plants by leafy stem cuttings.

Copolymerization of acrylamide with potassium salt of vinylamidoamber acid in homophase and heterophase conditions

1978 ◽  
Vol 14 (2) ◽  
pp. 169-171 ◽  
Author(s):  
V.A. Myagchenkov ◽  
A.K. Vagapova ◽  
V.F. Kurenkov ◽  
S.Ya. Frenkel
Keyword(s):  
Potassium Salt

scholarly journals A Study of the Adsorptive and Oxidative Bleaching of Palm Oil Using Clay and Potassium Tetraoxomanganate V11 Materials

2017 ◽  
Vol 9 (2) ◽  
pp. 67
Author(s):  
A. M. Ekwonu ◽  
E. O. Egolum
Keyword(s):  
Palm Oil ◽  
Potassium Salt ◽  
Fats And Oils ◽  
Oxidative Process ◽  
First Order ◽  
Bleaching Procedure ◽  
Alkanoic Acids ◽  
Life Values ◽  
Fuller’S Earth ◽  
Clay Materials

Fats and oils undergo hydrolysis reaction. They hydrolyse to yield propane-1,2,3 triol and the corresponding alkanoic acids if it is acid hydrolysis. Alkaline hydrolysis yields sodium or potassium salt of the alkanoic acid and propane-1,2,3-triol. A common approach for bleaching palm oil has been the use of clay materials, particularly the commercially available fuller’s earth. In this study, the suitability of chemical bleaching of palm oil using acidified (0.1M H2SO4) and non-acidified 1.0M KMnO4 was examined. This is compared to the adsorptive procedure using clay materials. Average bleaching absorbance values of 0.017+0.005 and 0.115+0.004 for acidified and non-acidified KMnO4 were respectively obtained from the oxidative bleaching procedure. Those for fuller’s earth and its blend with sodium sesquicarbonate (trona, a locally obtained clay) gave absorbance values of 0.121+0.011 and 0.186+0.006 respectively; while that for trona/activated carbon blend was 0.234+0.007. These are in comparison to 0.881 for the unbleached palm oil. Thus, a relatively better bleaching was achieved with the oxidative process. A first order rate reaction with respect to the bleaching agents was obtained for both procedures. Rate constants of 0.079+014 (acidified) and 0.055+0.020min-1 (non-acidified) at 800C were recorded for the oxidative bleaching. These are compared to 0.034+0.009 obtained for the clay mixture. Half-life values of 10min for acidified oxidative process, and 28min for adsorptive clay mixture method, were obtained. Efficiency of 98% was obtained for the acidified oxidative compared to approximately 70% for the clay blend. A significance, p< 0.05, between the absorbance values for the acidified oxidative and each of the adsorptive clay bleaching procedures was obtained.These observations indicate the potentials of oxidizing agents especially the acidified KMnO4 in the bleaching of palm oil, and therefore, suggest its usage industrially for this purpose.

Synthesis of 3-hydroxyindanones via potassium salt of amino acid catalyzed regioselective intramolecular aldolization of ortho-diacylbenzenes

2015 ◽  
Vol 56 (8) ◽  
pp. 981-985 ◽  
Author(s):  
Tanmoy Chanda ◽  
Sushobhan Chowdhury ◽  
Namrata Anand ◽  
Suvajit Koley ◽  
Ashutosh Gupta ◽  
...  
Keyword(s):  
Amino Acid ◽  
Potassium Salt ◽  
Acid Catalyzed

Potassium salt of nitroacetonitrile in the synthesis of nitrogen heterocycles

2015 ◽  
Vol 51 (11-12) ◽  
pp. 1057-1060 ◽  
Author(s):  
Egor K. Voinkov ◽  
Eugeny N. Ulomskiy ◽  
Vladimir L. Rusinov ◽  
Oleg N. Chupakhin ◽  
Evgeny B. Gorbunov ◽  
...  
Keyword(s):  
Potassium Salt ◽  
Nitrogen Heterocycles
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