摘要:

AbstractThorium nitrate was conductometrically titrated with malonic, succinic, adipic acids in aqueous solutions and azeleic and sebacic acids in alcoholic solutions, respectively. The composition and electrolytic behavior of thorium‐malonate system were investigated by conductometric and pH measurements. The formation of Th(CH2(COO)2)2was observed in the conductometric titrations of thorium nitrate with sodium and ammonium malonates, while that of the complex ion, (Th(OOC.CH2.‐COO)4)−4, in the reverse titrations. The approximate solubility product constant of the former is estimated from the results of pH measure

ISSN:0009-4536    

DOI:10.1002/jccs.195600001

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractHinokitiol (β‐isopropyl tropolone; C10H12O2) was electrolytically reduced in a polarograph in universal buffers containing phenylacetic acid at 30° C. The dependencies of the half‐wave potentials and diffusion current for different pH values and concentrations were observed. A single wave was found in the polarograms obtained in acid and in alkaline buffers while two waves were round in neutral buffers. Apparent diffusion coefficients were calculated from the Ilkovic equation and the effect of pH on D value was shown. It was found that the ionization constant of Hinokitiol obtained from the polarographic data in 0.2% alcohol solution was in good agreement with those obtained from potentiometric titr

ISSN:0009-4536    

DOI:10.1002/jccs.195600002

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractA mixed ammoniacal solution of oxine‐sulfonic acid, samarium, europium and a small amount of gadolinium nitrate was electrolytically reduced using a platinum cathode in the presence of acetic acid. Europium was quantitatively precipitated with very little samarium (estimated at‐1 or 2%). The other earths remaind in solution.The greenish yellow precipitate corresponded to the formula, H2(Eu‐(C9H5NOSO3)2)

ISSN:0009-4536    

DOI:10.1002/jccs.195600003

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractThe acidic components from the wood of Libocedrus formosana, Florin were studied. Thujic acid (4,4‐dimethyl‐2,5,7‐cycloheptatriene carbo‐xylic acid) and shonanic acid were isolated. The structure of shonanic acid would be 4, 4‐di‐methyl‐?, ?‐cycloheptadiene carboxylic acid rather than Ichikawa's 5, 5‐dimethyl, 4‐methylene‐2‐cyclohexene carboxylic acid as revealed by the data of its infrared and ultra‐violet absorption spectra and the results o

ISSN:0009-4536    

DOI:10.1002/jccs.195600004

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractThe carbon skeleton of isoshonanic acid was elucidated as 4, 4‐di‐methylcycloheptadien carboxylic acid, and the interconversion between isoshonanic acid and thujic acid were descri

ISSN:0009-4536    

DOI:10.1002/jccs.195600005

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractSucrose in aqueous solution was inverted with IR‐120‐H as catalyst. IR‐120‐K promoted the inversion brought about by IR‐120‐H, and the reaction rate increased almost lineally with increasing concentration of 1R‐120‐K. The effect of incorporating with IRA‐411‐C1 was also studied. With IR‐120‐H as catalyst, the rate of inversion was very slightly decreased by the presence of IRA‐411‐C1, while with IR‐120‐H and IR‐120‐K, the retar

ISSN:0009-4536    

DOI:10.1002/jccs.195600006

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractSome fundamental observations and studies have been made on the fruiting ofCollybia velutipescultivated in a chemically defined synthetic liquid medium. Attention was paid to the influences of the concentration of carbon and nitrogen in the original culture medium, the contents of both types of nucleic acids in the mycelial cells on fructification. Besides, the effects of antibiotics, growth hormones, light, and antagonism of other microorganisms were also studied.The cultivating time seemed to be the most important factor which affects the influence of the original nutrient level of the medium on both the mycelial growth and the fruit body production. Thus, in general, more mycelia grow on a medium with higher nutrient level after longer cultivation, and more fruit bodies are also produced on the same medium after the mycelial growth ceased.The nitrogen in fruit bodies seemed to originate in those of medium and mycelia, and N‐fixation seemed to be not obliged to take part in the growth of fruit body. The CO2‐fixation, however, was found to be essential for the normal growth of fruit body.The contents of ribonucleic acid (RNA) and protein in the mycelial cells in a flask reached their maximum value when the first fruit body was just produced, while the deoxyribonucleic acid (DNA) still continued to increase for a period thereafter, and the protein‐N released from the mycelium was supposed to be used for the protein synthesis in the fruit body. The ratios of RNA‐P/DNA‐P and protein‐N/DNA‐P in the mycelial cells had begun to decrease before the fruit body was going to grow. The fruiting was, therefore, expected to be preceded by the deprivation of the ability, of protein synthesis of the mycelial cells.The visible light of shorter wave lengths (i.e., violet and blue light) was found to be indispensable for the normal development of pilius and the production of spore. It was found that this effect of light could by no means modified by supplying amino acids, protein hydrolyzate, or extract of normal fruit body to the medium or on the pilius. Similar clustered secondary fruit bodies were formed by adding tryprophane or indolacetic acid to the medium or smearing them on the minute pilei of young fruit bodies. This abnormal development of fruit body was regarded as a part of the nutritive growth of the stem of the normal one due to the existence of nutritive growth hormones, and the photoinduction was supposed to result in the destruction of nutritive growth hormones or the formation of some growth hormone antagonists rather than the formation of transmissible floral stimulants, such as florigen.The application of some antibiotic substances (e.g., aureomycin and terramycin) to the mycelium on a malt agar culture was found to promote the fruiting, while penicillin showed no effect. The antagonistic actions of a species ofpenicilliumandaspergillus oryzaewere also found to promote the fruiting at their boundary on a malt

ISSN:0009-4536    

DOI:10.1002/jccs.195600007

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractExistence of floridoside (α‐D‐galactosylglycerol) in a purified 80% alcohol extract of Porphyra crispata was confirmed. From the hot water extract of the residue of alcohol extraction, polysaccharide was precipitated with alkali and alcohol. The polysaccharide was found to be consisted chiefly of DL‐galactose and an unidentified

ISSN:0009-4536    

DOI:10.1002/jccs.195600008

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractBy means of chemical analysis, differential thermal analysis and X‐ray analysis, the clay minerals of the colloids of the three important agricultural soils of Taiwan: the yellowish red latosol, the alluvial soil developed from sandstone and the alluvial soil from slate, have been investigated.It was observed that the colloid of the yellowish red latosol consisted primarily of the kaolinite group clay mineral and that of clays from the alluvial soils was mainly illite group clay minera

ISSN:0009-4536    

DOI:10.1002/jccs.195600009

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY

摘要:

AbstractAttempt has been made to prepare some butyl silicones by polymerization of the hydrolysis product of butylchlorosilanes which were obtained by the action of the Grignard reagent on silicon tetrachloride.

ISSN:0009-4536    

DOI:10.1002/jccs.195600010

出版商:WILEY‐VCH Verlag    

年代:1956

数据来源: WILEY