Bulgarian Chemical Communications, Volume 53, Special Issue-D, 2021
Contents:
1
 Review of lead flows in the anthropogenic environment
Original Research Article
Pages 5 – 10
M. Gupta, A. Kumar, S. Kumar
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2
 Enhancement of low-temperature impact toughness of polycarbonate by hydroxyl terminated siloxanes and its concomitant effects on other properties
Original Research Article
Pages 11 – 17
J. N. Srivastava, S. K. Gupta
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3
 Comparative study of castor oil and dehydrated castor oil as lubricants
Original Research Article
Pages 18 – 24
J. N. Srivastava, T. Nandi, R. K. Trivedi
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4
 Investigation on cypress wood membrane for water filtration
Original Research Article
Pages 25 – 31
M. Hanief, K. Zaman, S. Ul Bashir, J. Showkat, M. Zubair
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5
 Substance flow analysis of lead and chromium through wastewater management
Original Research Article
Pages 32 – 39
M. Gupta, A. Kumar, S. Kumar, M. K. Jat
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6
 Comparison of particle size distribution estimated by Rosin-Rammler equation vs Malvern particle size analyzer for different brands of PPC cement
Original Research Article
Pages 40 – 43
S. Mahaboob Subhani, S. Altaf Hussain, P. Dinesh Sankar Reddy
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7
 Application of Cocos nucifera’s husk to remove Malachite green dye and response surface modelling
Original Research Article
Pages 44 – 50
Arpita Ghosh
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8
 A statistical analysis and optimization of Indian coal grinding in a laboratory ball mill: dry & wet method
Original Research Article
Pages 51 – 61
S. Gautam, A. Gautam, M. Patel, H. Parmar, K. Patel
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9
 Reduction and biosorption of hexavalent chromium ions from wastewaters: a review
Original Research Article
Pages 62 – 72
A. Pathania, D. Thapliyal, R. Kumar Arya
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10
 Influence of the excessive use of fertilizer on the soil attributes: A case study
Original Research Article
Pages 73 – 77
A. Gupta, M. Patel, R. Singh
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11
 Instructions about Preparation of Manuscripts
Pages 78 – 79
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11
 Contents
Page 112
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