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Sodium Percarbonate:Analysis on IR Characteristic Spectra Correlation to Active Oxygen Content(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2006年04期
Page:
38-40
Research Field:
Publishing date:

Info

Title:
Sodium Percarbonate:Analysis on IR Characteristic Spectra Correlation to Active Oxygen Content
Author(s):
CHEN Wei~1; YAO Jie~2
1.School of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China;2.Analysis and Testing Center,Nanjing Normal University,Nanjing 210097,China
Keywords:
sodium percarbonate;  synthesis;  active oxygen content;  in frared spectra
PACS:
TQ131.12
DOI:
-
Abstract:
S tudies w ere perform ed on the process param eters fo r sod ium percarbonate synthesis and the corre lation betw een character istic IR Spectra and the ac tive oxygen content. The optim um cond itions for the pro cess are as fo-l lows: nN a2CO3· 2H 2 O :nH 2 O2 = 1:1.44; reaction tem pera ture of 10~ 15℃ ; reaction and crystallizing tim e of 10~ 15 m in; baking tem perature be low or equa l to 80℃ . A lso the cha racte ristic IR spec tra ( 2 054, 1 879, 1 560, 952, 856, 714, 695 cm - 1 ) cou ld be used to estim ate the active oxyg en content in the title percarbonate. Accord ing to the changes o f peaks at 954 and 1 560 cm- 1 and the appearance o f the peak a t 881 cm- 1, the deg ree ofH2O2 decom position in sod-i um percarbonate can be ev aluated. When the ratio of 856 to 714 cm - 1 is> 1.25, the active oxygen con tent in the title com pound is above 13. 00%.

References:

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Last Update: 2013-04-29