Measurement of mixed acid concentrations using Raman spectroscopy

Author

Gumin Kang ; Kim, Kyoungsik

Author_Institution

Sch. of Mech. Eng., Yonsei Univ., Seoul, South Korea

fYear

2009

fDate

21-25 Sept. 2009

Firstpage

1

Lastpage

2

Abstract

Mixed acids which consists of HF, HNO₃ are used as good etchant for pickling process of stainless steel and of HNO₃, CH₃COOH, H₃PO₄ are used as etchant for aluminum. The optical detection of concentration for such mixed acids is important to optimize and cut costs in the acid pickling process. The Raman spectroscopy technique has been employed to measure the concentration of mixed acid component within the aqueous phase.

Keywords

Fourier transform spectroscopy; Raman spectra; Raman spectroscopy; calibration; hydrogen compounds; organic compounds; spectrochemical analysis; Fourier transform Raman spectroscopy; H₃PO₄; HF; HNO₃; aluminum; aqueous phase; calibration model; chemometrics technique; concentration optical detection; etchant; mixed acid concentration measurement; mixed acids; multivariate analysis method; optical detection; pickling process; stainless steel; Aluminum; Cost function; Etching; Hafnium; Optical detectors; Phase measurement; Pickling; Raman scattering; Spectroscopy; Steel;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on

Conference_Location

Busan

Print_ISBN

978-1-4244-5416-7

Electronic_ISBN

978-1-4244-5417-4

Type

conf

DOI

10.1109/ICIMW.2009.5324973

Filename

5324973