Determination of Copper, Total Chromium and Silver in Impregnated Carbon

  • Beer Singh Defence Research & Development Establishment, Gwalior
  • S. Madhusudanan Defence Research & Development Establishment, Gwalior
  • C.G. Padam Kumar Defence Research & Development Establishment, Gwalior
  • S.R.S. Sachan Defence Research & Development Establishment, Gwalior
  • S.K. Pandy Defence Research & Development Establishment, Gwalior
  • Seema Agarwal Defence Research & Development Establishment, Gwalior
Keywords: Estimation, Absorption spectroscopy

Abstract

Carbon samples were impregnated with ammonical solutions of silver salt alone and in combination with Cu and Cr salts. The impregnated samples were characterised for Cu, total Cr and Ag. Copper was extracted as CuCl/sub 2/ using concentrated HCl and Cr with NaOH. Silver was extracted from impregnated carbon using HNO3 and sodium thiosulphate (Na/sub 2/S/sub 2/O/sub 3/-5H/sub 2/0) and ashed impregnated carbons using aqua regia. The extracted metals in their solutions were quantitatively determined by titrimetric method and atomic absorption spectroscopy. The results were within acceptable limits of error. Sodium thiosulphate is recommended for extraction of Ag, as it accomplishes complete leaching of Ag faster than the other extracting agents.

Author Biographies

Beer Singh, Defence Research & Development Establishment, Gwalior
Dr Beer Singh joined DRDO at the Defence Research & Development Establishment (DRDE),Gwalior. He has been working on defence against chemical warfare agents. He has developed the impregnation process for active carbon and silica gel for protection and detection of chemical warfare agents, respectively. He also developed evaluation methods for the protective equipment.
S. Madhusudanan, Defence Research & Development Establishment, Gwalior
Mrs Madhusudanan joined DRDO at DRDE, Gwalior. He has been working on the evaluation of nuclear, biological and chemical (NBC) individual protective equipment. He has also worked for the development of impregnation process for .active carbon for use in NBC filtration systems.
C.G. Padam Kumar, Defence Research & Development Establishment, Gwalior
Defence Research & Development Establishment, Gwalior
S.R.S. Sachan, Defence Research & Development Establishment, Gwalior
Mr SRS Sachao joined DRDO at DRDE, Gwalior. He has been working on the detection of toxic impurities in water. He has also developed water poison detection kit.
S.K. Pandy, Defence Research & Development Establishment, Gwalior
Mr SK Pandey obtained his MSc (Physics) in 1997. He joined DRDO at DRDE, Gwalior, in 1991 Presently, he is working as Technical Assistant at the Defence Standardisation Cell, Delhi.
Seema Agarwal, Defence Research & Development Establishment, Gwalior
Defence Research & Development Establishment, Gwalior
Published
2013-01-01
How to Cite
SinghB., MadhusudananS., KumarC., SachanS., PandyS., & AgarwalS. (2013). Determination of Copper, Total Chromium and Silver in Impregnated Carbon. Defence Science Journal, 48(4), 365-369. https://doi.org/10.14429/dsj.48.3963
Section
Biomedical Sciences

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