Encyclopedia of Chemical Processing and Design

2022 ◽  
Author(s):  
John J. McKetta ◽  
William A. Cunningham
Keyword(s):  
Author(s):  
Brenda E. Lambert ◽  
Ernest C. Hammond

The purpose of this study was to examine the external structure of four human hair shaft samples with the scanning Electron Microscope (SEM) and to obtain information regarding the chemical composition of hair by using the attached x ray microanalysis unit.The hair samples were obtained from two female subjects. Sample A was taken from a black female and had not undergone any type of chemical processing. Sample B, C, D were taken from a white female, and were natural, processed, and unpigmented, i.e. “gray”, respectively. Sample C had been bleached, tinted, and chemically altered using a permanent wave technique.


Alloy Digest ◽  
1991 ◽  
Vol 40 (10) ◽  

Abstract ZYMAXX provides outstanding compressive creep resistance, toughness and chemical inertness at high temperatures and pressures and under adverse conditions. They have a wide range of uses beyond chemical processing, including aerospace and automotive applications, general industrial equipment, home appliances, farm and construction equipment. This datasheet provides information on physical properties, hardness, tensile properties, and compressive strength as well as fracture toughness and creep. It also includes information on corrosion resistance. Filing Code: Cp-18. Producer or source: E. I. Dupont de Nemours & Company Inc..


Alloy Digest ◽  
1979 ◽  
Vol 28 (9) ◽  

Abstract AMPCOLOY 525 is a cast copper-nickel alloy to which norminally 1.5% iron has been added to increase its resistance to corrosion by salt water. It is recommended where superior corrosion resistance. weldability and mechanical properties are required. Among its many uses are parts that must be resistant to seawater, steam fittings and chemical processing equipment This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-380. Producer or source: Ampco Metal Inc..


Alloy Digest ◽  
1970 ◽  
Vol 19 (2) ◽  

Abstract ALLEGHENY ALMAR-362 is an age-hardenable martensitic stainless steel recommended for applications requiring high strength and good corrosion resistance, such as aircraft and missile structures, hydraulic and pneumatic equipment components, and in the chemical processing industry. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness. It also includes information on corrosion resistance as well as casting, forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-234. Producer or source: Allegheny Ludlum Corporation.


Alloy Digest ◽  
1983 ◽  
Vol 32 (5) ◽  

Abstract ZIRCADYNE 706 is a zirconium-niobium (columbium) alloy containing 2-3% niobium. It is similar in chemical compositions (except for slightly lower oxygen) to Zircadyne 705 (Alloy Digest Zr-8, July 1982). Zircadyne 706 was developed specifically for severe forming applications such as panel-type heat exchangers. The corrosion resistance of Zircadyne 706 is identical to that of Zircadyne 705 but its tensile and yield strengths are slightly lower. It is recommended for chemical processing applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Zr-10. Producer or source: Teledyne Wah Chang Albany.


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