scholarly journals Studies on the Sequence Distributions of Microbial Polyester by NMR and Determination of Melting Temperature.

2002 ◽  
Vol 58 (3) ◽  
pp. 98-105 ◽  
Author(s):  
Wen-chuan Hsieh ◽  
Kimihiko Nishiwaki ◽  
Nobuyuki Tanaka ◽  
Hiroshi Mitomo
1977 ◽  
Vol 23 (4) ◽  
pp. 719-724 ◽  
Author(s):  
Donald D Thornton

Abstract The sharpness and reproducibility of the gallium melting point were studied, and the melting temperature of gallium in terms of IPTS-68 was determined. Small melting-point cells designed for use with thermistors are described. Nine gallium cells including three levels of purity were used in 68 separate determinations of the melting point. The melting point of 99.99999% pure gallium in terms of IPTS-68 is found to be 29.7714 ± 0.0014 °C; the melting range is less than 0.0005 °C and is reproducible to ±0.0004 °C.


1992 ◽  
Vol 25 (7) ◽  
pp. 1845-1851 ◽  
Author(s):  
Alberto Ballistreri ◽  
Giorgio Montaudo ◽  
Mario Giuffrida ◽  
Robert W. Lenz ◽  
Young B. Kim ◽  
...  

2014 ◽  
Vol 595 ◽  
pp. 17-21 ◽  
Author(s):  
Xing Jin ◽  
Xiaodong Xu ◽  
Xiaosong Zhang ◽  
Yonggao Yin

Author(s):  
V. A. Kuzmin ◽  
I. A. Zagrai ◽  
I. A. Desiatkov

The paper deals with the issues related to the effect of slagging within the steam boilers furnaces and shows the determination results on peat ash fusibility of Kirov region deposits. Fusibility properties of peat ash (temperatures of deformation, sphere, hemisphere and flow) from the four industrial areas (Dymny, Pishchalsky, Karinsky, Gorokhovsky) depending on its chemical composition are presented. Melting temperature of the mineral part of the peat, determined by GOST, is averaged and does not reflect the actual melting temperature of the individual particles in fly ash. The existence of such separate particles having a melting temperature below the average melting temperature of the ash makes it difficult to find the operating temperature of the torch to reach the minimum of the furnace slagging during peat combustion. The comparison of melting characteristics of peat ash with the reference literature data is performed. The initial slagging temperature is calculated depending on the ratio of the acidic and basic oxides in peat ash.


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