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LETTER TO THE EDITORS

LETTER TO THE EDITORS Chemistry and Technology of Fuels and Oils, Vol. 37, No. 3, 2001 DEAR EDITORS: An article by K. I. Sadykhov, A. N. Agaev, and S. M. Velieva, “Moderately alkaline sulfonate additive for motor oils,” was published in Chemistry and Technology of Fuels and Oils, No. 1 (2001). The distortion of its contents elicited a number of comments, including two major comments: 1. In comparing the data in Tables 1 and 2, we find mutually exclusive indexes for the additives and M-10G2 oil with the same additives for the base number and sulfate ash content. These properties of oils are additive. To obtain samples of oil with a base number of the order of 9.1 – 9.4 mg KOH/g (Table 2), approximately 6% additives with a base number of 150 – 153 mg KOH/g (Table 1) would have to be added. With this amount of additives, the sulfate ash content of the oils with calcium, strontium, and barium sulfonates would respectively be 1.4, 2.25, and 2.45%, which clearly contradicts the data in Table 2, where the sulfate ash content of all samples falls within 1.43 – 1.59%. If we depart from the almost equal sulfate ash content of the oil samples, their base numbers will differ strongly. 2. We know that barium detergents are universally excluded from motor oils for environmental reasons. In this respect, it is impossible to understand the purpose of developing a new generation of barium sulfonate today. With best wishes, V. D. Reznikov FROM THE EDITORS In publishing this letter we hope that the authors will become fully aware of their responsibility to the readers and the scientific level of their articles will be commensurate with the high authority and good name of the journal. ____________________________________________________________________________________________________ Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 3, p. 32, May – June, 2001. 186 0009-3092/01/3703–0186$25.00 ©2001Plenum Publishing Corporation http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemistry and Technology of Fuels and Oils Springer Journals
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