Abstract
This paper reports on a color indicator-assisted spectrophotometric method for the determination of carboxymethyl cellulose sodium (CMC-Na) content in aqueous solution. Methyl blue (MB) was used as the color indicator and its absorbance at 597 nm can be instantly attenuated when the CMC-Na was introduced. The results showed that there was a linear relationship (R2 = 0.999) between the inverse of MB absorbance at 597 nm and the content of CMC-Na; The present method has a very good measurement precision (relative standard deviation < 1.15%) and accuracy (relative error < 4.37%, when compared with the results measured using the oven-dry method). The present method is very simple and rapid, and it is suitable for use in the mill operation, aiming at a timely process control.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
