Tag: M.W=200-250

Horioka, Masakazu published the artcileStudies on the treatment of high level radioactive wastewater. 2. Adsorption characteristic of DAA for zeolite, Quality Control of 2016-56-0, the publication is Yamagata-ken Eisei Kenkyushoho (1980), 35-8, database is CAplus.

A high level radioactive wastewater containing ¹³⁷Cs was adsorbed on fine zeolite which was separated by flotation by dodecylamine acetate [2016-56-0] (DAA). DAA reached an equilibrium adsorption on zeolite within 5 min but Cs⁺ equilibrium adsorption took ?48 h. DAA adsorption on zeolite is mainly surface adsorption.

Yamagata-ken Eisei Kenkyushoho published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, Quality Control of 2016-56-0.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Huang, Zhongfang published the artcileDepressing effect of SPF on quartz, Computed Properties of 2016-56-0, the publication is Kuangye Gongcheng (1983), 3(1), 33-5, database is CAplus.

S.P.F. (not defined) had a better depressing effect on quartz when dodecylamine?acetate??[2016-56-0] or Na?oleate??[143-19-1] are used as collectors. The depressing effect is dependent on the preactivation of quartz.

Kuangye Gongcheng published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, Computed Properties of 2016-56-0.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Casy, A. F. published the artcileCarbon-13 NMR as a convenient aid to the differentiation of triethylenetetraamine (TETA) dihydrochloride from related impurities, Recommanded Product: N1,N1′-(Ethane-1,2-diyl)bis(ethane-1,2-diamine) dihydrochloride, the publication is Journal of Pharmacy and Pharmacology (1981), 33(5), 333-4, database is CAplus and MEDLINE.

Proton-noise and off-resonance decoupled ¹³C spectra were obtained on an NMR spectrometer for recrystallized TETA-2HCl [38260-01-4] in D₂O. The correct number of lines required by the 3 nonequivalent C atoms in this structure were displayed, whereas that of the impurity, tris(2-aminoethyl)amine-3HCl [4097-89-6] showed one less signal, consistent with 2 nonequivalent C atoms. A com. sample of diethylenetriamine [111-40-0] had a spectrum with 2 major lines only. Piperazine and other impurities were observable in spectrums of TETA base samples. Levels of impurities of 5% and probably lower could be detected.

Journal of Pharmacy and Pharmacology published new progress about 38260-01-4. 38260-01-4 belongs to catalysis-chemistry, auxiliary class Chelating Agents, name is N1,N1′-(Ethane-1,2-diyl)bis(ethane-1,2-diamine) dihydrochloride, and the molecular formula is C6H20Cl2N4, Recommanded Product: N1,N1′-(Ethane-1,2-diyl)bis(ethane-1,2-diamine) dihydrochloride.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Choi, Zel-Ho published the artcileSynthesis and properties of anionic tetrakis(pentafluorophenyl)indium(III) complexes, Computed Properties of 1206-46-8, the publication is Journal of the Korean Chemical Society (1999), 43(1), 52-57, database is CAplus.

The anionic complexes, [In(C₆F₅)₄]^–, which are thermal and moisture sensitive, have been prepared by the reaction of In(C₆F₅)₃¡¤D (D = MeCN, Et₂O) with the system Me₃SiC₆F₅/CsF, C₆F₅MgBr or Cd(C₆F₅)₂. The stable anionic indium(III) complexes are obtained through cation exchange with PNPCl ([PNP] = bis(triphenylphosphino)ammonium). The pure substance is obtained by column chromatog. These new anionic complexes are unambiguously identified by NMR-spectroscopy, IR spectroscopy, mol. weight, DTA/TG and elemental anal.

Journal of the Korean Chemical Society published new progress about 1206-46-8. 1206-46-8 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Trimethyl(perfluorophenyl)silane, and the molecular formula is C9H9F5Si, Computed Properties of 1206-46-8.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Citron, Joel D. published the artcileReductions with organosilicon hydrides. III. Reduction of acyl fluorides to esters, SDS of cas: 312-40-3, the publication is Journal of Organic Chemistry (1971), 36(17), 2547-8, database is CAplus.

Aliphatic RCOF are heated with Et3SiH or (PhCH2)3SiH to give RCO2CH2R. Pentanoyl fluoride (I) is treated with Et3SiH and R1CHO is added to give Me(CH2)3CO2CH2R1 (R1 = alkyl, Ph); PhCN does not affect the reaction of I with Et3SiH and pentyl pentanoate is formed. Terephthaloyl fluoride reacts with Et3SiH to give polymer. Esters are not obtained when Ph2SiH2 is used.

Journal of Organic Chemistry published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, SDS of cas: 312-40-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Exner, Otto published the artcileA quantitative study of the inductive effect, Recommanded Product: 4-(Phenoxymethyl)benzoic acid, the publication is Tr. Konf. po Probl. Primeneniya Korrelyatsion. Uravnenii v Organ. Khim., Tartusk. Gos. Univ., Tartu (1962), 67-88, database is CAplus.

cf. CA 58, 5468d. The dissociation constants of ¦Á-substituted p-toluic acids (I) yield Taft inductive constants for the substituents that agree with those obtained by other methods. The attenuation of the inductive effect by the CH₂ group is not explainable by the electrostatic theory. Comparison of the dissociation constants of I and ¦Á-substituted m-toluic acids shows that the inductive effect is relayed to the para and meta positions in the ratio of 1.13: 1. However, the Taft inductive and mesomeric constants for -M groups have no real significance. Comparison of the dissociation constants of II and III (R = H, Me, OH, SH, OMe, OPh, SO₂Ph, and NMe₃⁺) shows a greater transmission of the inductive effect in II, associated with its lower aromaticity.

Tr. Konf. po Probl. Primeneniya Korrelyatsion. Uravnenii v Organ. Khim., Tartusk. Gos. Univ., Tartu published new progress about 31719-76-3. 31719-76-3 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ether, name is 4-(Phenoxymethyl)benzoic acid, and the molecular formula is C14H12O3, Recommanded Product: 4-(Phenoxymethyl)benzoic acid.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Farooq, O. published the artcileFluoridative degradation of cyclosiloxanes with alkali metal salts of perfluorinated complex anion. Part 5, Product Details of C12H10F2Si, the publication is Journal of Organometallic Chemistry (2000), 613(2), 239-243, database is CAplus.

Alkali metal salts of perfluorinated ‘non-nucleophilic’ complex anions were used for fluoridative degradation of cyclosiloxanes under thermal conditions in the absence and presence of high boiling multifunctional ethereal solvent. The degradative products consist of fluorosilanes and fluorosiloxanes in low to moderate yields.

Journal of Organometallic Chemistry published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Product Details of C12H10F2Si.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Farooq, Omar published the artcileNucleophilic fluorination of alkoxysilane with alkali metal salts of perfluorinated complex anions. Part 2, Application In Synthesis of 312-40-3, the publication is Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1998), 661-666, database is CAplus.

Alkali metal salts of perfluorinated complex anions were used to effect nucleophilic fluorination of alkyl-, arylalkyl- and arylalkoxysilanes both in the presence and absence of solvent. Near-quant. yields of fluorinated silanes were obtained using equimolar quantities of F^– ion equivalent and alkoxysilanes. In certain cases, intermediate organoboron and organophosphorus compounds derived from the corresponding complex anions and alkoxysilanes are identified in the reaction mixtures, and based on these intermediates a mechanism of reaction is proposed.

Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Application In Synthesis of 312-40-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Farooq, Omar published the artcileNucleophilic fluorination of alkoxysilane with alkali metal hexafluorophosphate. Part 1, Quality Control of 312-40-3, the publication is Journal of Fluorine Chemistry (1997), 86(2), 189-197, database is CAplus.

Alkali metal hexafluorophosphates were used to effect nucleophilic fluorination of a few selected alkoxysilanes both in the presence and absence of polar solvents. Near-quant. yields of fluorinated silanes were obtained using both alkoxy-equivalent of the complex salt and fluoride equivalent of alkoxysilanes. Some of the intermediate fluorosilanes and fluorophosphorus compounds were identified and the mechanism of fluorination is proposed.

Journal of Fluorine Chemistry published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Quality Control of 312-40-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Fuerstenau, D. W. published the artcileExcess nonequilibrium collector adsorption and flotation rates, Category: catalysis-chemistry, the publication is Minerals & Metallurgical Processing (2001), 18(2), 83-86, database is CAplus.

Experiments using an optically polished Pyrex disk and aqueous dodecylammonium acetate (DAA) films showed that the velocity with which the films recede increases markedly if the runs are repeated at short time intervals, where equilibrium cannot be reattained. This behavior results from DAA mols. being desorbed from the disappearing liquid/air interface and being deposited on the solid/air interface being formed. Controlled experiments with Pyrex glass particles in a modified Hallimond tube showed a similar increase in flotation rate, again due to excess adsorption of DAA mols. that were transferred to the solid-air interface from the bubbles on contact.

Minerals & Metallurgical Processing published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, Category: catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia