Review of Health Hazards in Adolescence.

1992 ◽  
Vol 37 (3) ◽  
pp. 267-267
Author(s):  
Thomas D. Oakland
Keyword(s):  
Health Hazards

A non-cyanide method of electropolishing silver

1978 ◽  
Vol 36 (1) ◽  
pp. 146-147
Author(s):  
R. L. Lyles ◽  
S. J. Rothman ◽  
W. Jäger
Keyword(s):  
Electron Microscopy ◽  
Sulphuric Acid ◽  
Methyl Alcohol ◽  
Health Hazards ◽  
Silver Alloy ◽  
High Quality ◽  
Silver Alloys ◽  
Free Sample ◽  
Specimen Quality ◽  
Standard Techniques

Standard techniques of electropolishing silver and silver alloys for electron microscopy in most instances have relied on various CN recipes. These methods have been characteristically unsatisfactory due to difficulties in obtaining large electron transparent areas, reproducible results, adequate solution lifetimes, and contamination free sample surfaces. In addition, there are the inherent health hazards associated with the use of CN solutions. Various attempts to develop noncyanic methods of electropolishing specimens for electron microscopy have not been successful in that the specimen quality problems encountered with the CN solutions have also existed in the previously proposed non-cyanic methods.The technique we describe allows us to jet polish high quality silver and silver alloy microscope specimens with consistant reproducibility and without the use of CN salts.The solution is similar to that suggested by Myschoyaev et al. It consists, in order of mixing, 115ml glacial actic acid (CH3CO2H, specific wt 1.04 g/ml), 43ml sulphuric acid (H2SO4, specific wt. g/ml), 350 ml anhydrous methyl alcohol, and 77 g thiourea (NH2CSNH2).

A Study on the Manganese Exposure and Health Hazards Among Manganese Manufacturing Workers

1994 ◽  
Vol 6 (1) ◽  
pp. 98 ◽  
Author(s):  
Ji Yong Kim ◽  
Hyun Sul Lim ◽  
Hae Kwan Cheong ◽  
Nam Won Paik
Keyword(s):  
Health Hazards ◽  
Manganese Exposure

Manganese Exposure and its Health Hazards of Welders

1999 ◽  
Vol 11 (4) ◽  
pp. 476 ◽  
Author(s):  
Deog Hwan Moon ◽  
Byung Chul Son ◽  
Dong Mug Kang
Keyword(s):  
Health Hazards ◽  
Manganese Exposure
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