ChemInform Abstract: INHIBITION AND POLARIZATION STUDIES OF SOME SUBSTITUTED UREA COMPOUNDS FOR CORROSION OF ALUMINUM IN NITRIC ACID

1981 ◽  
Vol 12 (43) ◽  
Author(s):  
D. D. N. SINGH ◽  
M. M. SINGH ◽  
R. S. CHAUDHARY ◽  
C. V. AGARWAL
Keyword(s):  
Nitric Acid ◽  
Polarization Studies ◽  
Urea Compounds ◽  
Substituted Urea

Inhibition and polarization studies of some substituted urea compounds for corrosion of aluminium in nitric acid

1981 ◽  
Vol 26 (8) ◽  
pp. 1051-1056 ◽  
Author(s):  
D.D.N. Singh ◽  
M.M. Singh ◽  
R.S. Chaudhary ◽  
C.V. Agarwal
Keyword(s):  
Nitric Acid ◽  
Polarization Studies ◽  
Urea Compounds ◽  
Substituted Urea

Ectodesmata as Revealed By Freeze-Etch Preparations of Plant Epidermal Cell Walls

1973 ◽  
Vol 31 ◽  
pp. 468-469
Author(s):  
N.C. Lyon ◽  
W. C. Mueller
Keyword(s):  
Electron Microscopy ◽  
Acetic Acid ◽  
Nitric Acid ◽  
Oxalic Acid ◽  
Light Microscopy ◽  
Epidermal Cell ◽  
Cell Walls ◽  
Plant Viruses ◽  
Plant Leaves ◽  
Thin Sections

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.

The Action of Nitric Acid on Aluminium

1916 ◽  
Vol 82 (2122supp) ◽  
pp. 150-150
Author(s):  
R. Seligman ◽  
P. Williams
Keyword(s):  
Nitric Acid
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