scholarly journals Poly(L-lactide): Optimization of Melting Temperature and Melting Enthalpy

2021 ◽  
Author(s):  
Hans Rytger Kricheldorf ◽  
Steffen M. Weidner ◽  
Andreas Meyer
Keyword(s):  
Melting Temperature ◽  
Melting Enthalpy

Twice recrystallized L-lactide was polymerized with a dozen of different tin or bismuth catalysts in bulk at 160°C for 24 h and was annealed at 150°C afterwards. In two cases...

Modeling the melting temperature, melting entropy and melting enthalpy of freestanding metallic nanoparticles

2020 ◽  
Vol 241 ◽  
pp. 122280 ◽  
Author(s):  
Xiao Bao Jiang ◽  
Bei Bei Xiao ◽  
Rui Lan ◽  
Xiao Yan Gu ◽  
Hong Chao Sheng ◽  
...  
Keyword(s):  
Melting Temperature ◽  
Metallic Nanoparticles ◽  
Melting Enthalpy ◽  
Temperature Melting ◽  
Melting Entropy

Thermostability of DNA Complexes with Mitoxantrone at Small Fillings

2017 ◽  
Vol 12 (03) ◽  
pp. 141-149
Author(s):  
Yuri S. Babayan ◽  
Sergey N. Hakobyan ◽  
Rusanna S. Ghazaryan ◽  
Mariam A. Shahinyan
Keyword(s):  
Ionic Strength ◽  
Temperature Dependence ◽  
Melting Temperature ◽  
Ethidium Bromide ◽  
Melting Enthalpy ◽  
Base Pairs ◽  
Dna Complexes ◽  
Concentration Enhancement

Thermostability of DNA complexes with anti-tumorous compound — mitoxantrone — at 0.011[Formula: see text]M and 0.11 M NaCl ionic strengths of solution by spectrophotometric and microcalorimetric methods has been studied. It was shown that at small fillings when one molecule of mitoxantrone corresponds to 250 or more base pairs of DNA, the thermostability of complexes strongly depends on the solution’s ionic strength; moreover, at an ionic strength of 0.011 M NaCl the melting temperature dependence on mitoxantrone concentration passes through a minimum. In the mentioned region of mitoxantrone concentration the melting enthalpy of the complexes increases linearly with mitoxantrone concentration enhancement. The observed phenomenon, which is not observed for ethidium bromide complexes with DNA, is qualitatively explained by the increasing of coil-shaped state of DNA–mitoxantrone complex due to additional freedom of rotation of mitoxantrone side groups.

Compliance with Amended General Chapter USPMelting Range or Temperature

2019 ◽  
Author(s):  
Samuele Giani ◽  
Naomi M. Towers
Keyword(s):  
Melting Temperature ◽  
Reference Standards ◽  
Melting Range ◽  
Primary Reference ◽  
General Chapter ◽  
Regulation Compliance

Laboratories measuring melting temperature according to USP<741> Melting Range or Temperature, must comply with the amended calibration and adjustment requirements described in this regulation. Compliance is ensured by adjusting the instrument with secondary reference standards, traceable to USP, followed by verification of accuracy using USP primary reference standards.

INDALLOY 136

Alloy Digest ◽  
1981 ◽  
Vol 30 (5) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Melting Temperature ◽  
Eutectic Alloy ◽  
Heat Treating

Abstract INDALLOY 136 is a bismuth-base, eutectic alloy that melts at 136 F (57.8 C). It is used widely in industry because of its low melting temperature and controlled-shrinkage characteristics. It provides the scientist, engineer and technician with an easily castable material that is ready for use soon after it freezes. The alloy can be recovered easily and recycled into new uses any number of times. Among its uses are anchoring parts for machining, proof casting and low-melting solder. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting, heat treating, and machining. Filing Code: Bi-24. Producer or source: Indium Corporation of America.

CERROLOW-136 Alloy

Alloy Digest ◽  
1979 ◽  
Vol 28 (9) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Melting Temperature ◽  
Eutectic Alloy ◽  
Heat Treating ◽  
Metal Products

Abstract CERROLOW-136 Alloy is a bismuth-base eutectic alloy that melts at 136 F (57.8 C), hence its identifying number. It is widely used in industry because of its low melting temperature and controlled-shrinkage characteristics. Among tis many applications are (1) Anchoring parts such as jet blades for machining, testing and inspection, (2) In the foundry for fusible cores in compound cores and (3) Low-melting solder. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting, heat treating, and machining. Filing Code: Bi-13. Producer or source: Cerro Metal Products.

CERROLOW-117 Alloy

Alloy Digest ◽  
1978 ◽  
Vol 27 (10) ◽  
Keyword(s):  
Low Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Melting Temperature ◽  
Eutectic Alloy ◽  
Heat Treating ◽  
Dental Models ◽  
Metal Products

Abstract CERROLOW-117 Alloy is a bismuth-base eutectic alloy that melts at 117 F (47 C). Its low melting temperature and controlled-shrinkage characteristics make it very useful in industry for such applications as proof casting in tool and die shops, dental models and low-temperature solder. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting, forming, heat treating, and machining. Filing Code: Bi-8. Producer or source: Cerro Metal Products.

A study on formation of alloyed layer of low melting temperature on bonding surface of IN738LC with boron pack cementation.

1987 ◽  
Vol 5 (3) ◽  
pp. 370-373 ◽  
Author(s):  
Mitsuo Kato ◽  
Takao Funamoto ◽  
Hiroshi Wachi ◽  
Takeshi Matsuzaka ◽  
Tomohiko Shida ◽  
...  
Keyword(s):  
Melting Temperature ◽  
Pack Cementation ◽  
Alloyed Layer ◽  
Bonding Surface

scholarly journals Diamond and Low Carbon Steel Interaction at Melting Temperature of Fe-C Eutectic

2021 ◽  
Vol 666 (3) ◽  
pp. 032085
Author(s):  
M P Akimova ◽  
P P Sharin ◽  
S N Makharova ◽  
S P Yakovleva
Keyword(s):  
Carbon Steel ◽  
Melting Temperature ◽  
Low Carbon Steel ◽  
Low Carbon
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