An Extractive Spectrophotometric Determination of Tin as Sn(II)-6-Chloro-3-hydroxy-7-methyl-2-(4'-methoxyphenyl)-4-oxo-4H-1-benzopyran Complex into Dichloromethane
More details
Hide details
Department of Chemistry, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi-110075, India
Department of Chemistry, Kurukshetra University, Kurukshetra-136119, Haryana, India
Harish Kumar Sharma   

Department of Chemistry, Kurukshetra University, Kurukshetra-136119, Haryana, India
Publish date: 2017-11-01
Eurasian J Anal Chem 2011;6(3):140–149
Tin(II) forms a yellow colored complex with 6-chloro-3-hydroxy-7-methyl-2-(4'-methoxyphenyl)-4-oxo-4H-1-benzopyran in hydrochloric acid medium. The complex is extractable into dichloromethane and shows maximum absorbance in the range 424-428 nm. The 1:2 (M: L) complex formed is found to be stable for more than 4 h in dichloromethane. Beer’s law is obeyed in the range 0.0 to 1.68 μg Sn(II) mL-1 with an optimum range of determination as found from Ringbom plot is 0.23-1.51 μg mL-1. The molar absorptivity and Sandell’s sensitivity of the complex are 6.29×104 L mol-1 cm-1 and 0.0019 μg Sn(II) cm-2 at 426 nm, respectively. The method is free from interference of a large number of important anions/complexing agents and cations. The method is quite simple and has been satisfactorily applied to the analysis of tin in various samples including gun metal and tin can.
1 Agarwal K, Patel KS, Shrivas K, Jain VK and Khan F (2009) On site determination of tin in geological and water samples using novel organic reagent with iodide. Journal of Hazardous Materials 164(1): 95.
2 Li Z, Li C, Du C and Xu Q (1998) Study on the determination of trace amounts of tin(IV) with tungstate and butylrhodamine B. Fenxi Shiyanshi 17(5) : 17.
3 Li G and Xu G (2007) Spectrophotometric determination of tin in aluminium alloy and copper alloy with the system of Sn(IV)-manitol-pyrogallol red-CTMAB. Yejin Fenxi 27(7) : 73.
4 Varghese A and Khadar AMA (2006) Highly selective derivative spectrophotometric determination of tin(II) in alloy samples in the presence of cetylpyridinium chloride. Acta Chim Slov 53(3) : 374.
5 Arya SP, Bhatia SC, Bansal A and Mahajan M (2002) Isoamyl Xanthate as a sensitive reagent for the spectrophotometric determination of tin. Journal of the Indian Chemical Society 79(4): 359.
6 Bandekar SV and Dhadke PM (1998) Solvent extraction sepration of tin(IV) with 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (PC-88A). Talanta 46(5): 1181.
7 Arya SP, Bhatia SC and Bansal A (1993) Extractive spectrophotometric determinationof tin as Sn(II)-Ferron complex. Fresenius’ Journal of Analytical Chemistry 345(11): 679.
8 Gutierrez AM, Laorden MV, Sanz-Medel A and Nieto JL (1986) Spectrophotometric determination of tin(IV) by extraction of the ternary tin/iodide/5,7-dichloro-8-quinolinol complex. Analytica Chimica Acta 184: 317.
9 Yan H (2003) Spectrophoyhometric determination of tin in steel with dibromohydroxy phenylflurone . Yejin Fenxi 23(6):45.
10 Saran R, Baishya NK and Roy S (2002) Spectrophoyhometric determination of tin as a ternary complex in matrices containing oxides of tantalum, iron and titanium. Chemia Analityczna 47(1): 131.
11 Chen B, Zhang Q, Minami H, Uto M and Inoue S (2000) Spectrophotometic determination of tin in steels with 2-(5-Nltro-2-Pyridylazo)-5-[N-n-Propyl-N-(3-Sulfopropyl)Amino]phenol. Analytical Letters 33(14): 2951.
12 Costa ACS, Teixeira LSG and Ferreira SLC (1995) Spectrophotometric determination of tin in copper-based alloys using pyrocatechol violet. Talanta 42(12) : 1973.
13 Arya SP and Bansal A (1994) Rapid and Selective method for the Spectrophotometric Determination of tin using potassium ethylxanthate. Mikrochimica Acta 116(1-3): 63.
14 Deguchi M, Yokoyama K, Umeda M, Saheki Y, Morishige K and Yamaguchi K (1993) Fluorometric and spectrophotometric determination of tin(IV) with hydroxy-5-sulfoaniline-N-Salicydiene. Hiroshima Daigaku Kogakubu Kenkyu Hokoku 41(2):139.
15 Hernandez MJ, Moreno CB, Carabias MR and Gutierrez DL (1987) Spectrophotometric determination of tin(IV) with catechol violet sensitized polyvinylpyrrolidone. Microchemical Journal 35(3) : 288.
16 Wyganowski C (1979) Sensitive spectrophotometric determination of tin with pyrogallol red and cetyldimethylbenzylammonium ions. Microchimica Acta 1(5-6): 399.
17 Du C, Li Z, Li C and Xu Q (1999) Study on Spectrophotometric Determination of Trace Tin Using Rhodamine B and Heteropoly Stannotungstic Acid. Yejin Fenxi 19(1) : 1.
18 Gupta SC, Yadav NS and Dhawan SN (1991) Synthesis of 2,3-diaryl-8-methyl-2,3,4,10-tetrahydropyrano[3,2-b]benzopyran-10-ones: photoisomerisation of styrylchromones. Indian J. Chem. Section-B 30: 790.
19 Jeffery GH, Bassett J, Mendham J and Denny RC (1989) Vogel’s Textbook of Quantitative Chemical Analysis, 3rd edn. Singapore, Addison Wesley Longman Inc. p 474.
20 Ringbom A (1938) Über die genauigkeit der colorimetrischen analysenmethoden I. Fresenius’ Journal of Analytical Chemistry. 115(9-10): 332.
21 Job P (1928) Stability Constant of Coordination compounds.Anal Chim (Paris) 9:113.
22 Vosburgh WC and Cooper GR (1941) The identification of complex ion in solution by spectrophotometic measurements. J. Am. Chem Soc 63(2): 437.
23 Yoe JH and Jones AL (1944) Colorimetric determination of iron with disodium-1,2-dihydroxybenzene-3,5-disulfonate. Ind Eng Chem (Anal Ed) 16:111.
24 Nath M and Goyal S (1995) Spectral studies and bactericidal, fungicidal, insecticidal and parasitological activities of organotin(IV) complexes of thio schiff bases having no donor atoms. Metal Based Drugs 2 (6) 297.