Boron compounds are used as wood preservatives as they are both fungicide and insecticide, relatively inexpensive and environmentally acceptable. Nevertheless, in the field of wood protection, borates are only used for indoor non-exposed applications or in association with other biocides, due to their main disadvantage of being readily leachable from treated wood. To overcome this problem, bori...

The sodium salt of poly(dG-dC) is known to exhibit a B + Z transition in the presence of various cations and 60% alcohol. We here show that the lithium salt of poly(dG-dC) does not undergo B 4 Z transition in the presence of 60% alcohol since Li’ with its large hydration shell cannot stabilize the Z-form. On the other hand, high concentrations of Mg2* or micromolar concentrations of the cobalt ...

°4. Hay ward, F. W. and W. Grierson, 1960. Effects of treatment conditions on o-phenylphenol residues in oranges. J. Agr. Food Chem. 8: 308-310. . 5. Hopkins, E. F. and K. W. Loucks, 1953. An improved Dowicide A-hexamine gives better decay control. Citrus Mag. 17 (8): 9-12, 33. April. 6, , 1956. Tolerance of 10 ppm for o-Dhenvlphenol on oranges, grapefruit, lemons, tangerines. Fed. Reg 21(35): ...

A new sorbent has been developed by grafting Hexamethylenetetramine on a mesoporous molecular sieve (SBA-15) by wet impregnation method. This sorbent (Hexamine/SBA-15) has been characterized using N2 physisorption, X-ray diffraction (XRD) at low angles (2θ°) and FT-IR. To investigate the H2S removal capacity of this adsorbent from CH4-containing gas mixtures, the breakthrough tests have been pe...