Decomposition of β-alaninediacetic acid and diethylenetriamine-pentaacetic acid by hydrogen peroxide in alkaline conditions

Mika E.T. Sillanpää; Jaakko H.P. Rämö

doi:10.1021/es000167s

Decomposition of β-alaninediacetic acid and diethylenetriamine-pentaacetic acid by hydrogen peroxide in alkaline conditions

Mika E.T. Sillanpää, Jaakko H.P. Rämö

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

The chemical decompositions of β-alaninediacetic acid (ADA) and diethylenetriaminepentaacetic acid (DTPA) were studied in a pilot-plant flow-through system simulating alkaline (pH 10-11) hydrogen peroxide bleaching environments. The amount of hydrogen peroxide decomposition was evaluated, and the distribution calculation was performed. Under the conditions investigated, ADA was more degradable than DTPA (average residual 71% vs 94%). The decomposition of hydrogen peroxide was not dependent on the chelate; the residual percent of hydrogen peroxide was 40 in both cases.

Original language	English
Pages (from-to)	1379-1384
Number of pages	6
Journal	Environmental Science & Technology
Volume	35
Issue number	7
DOIs	https://doi.org/10.1021/es000167s
Publication status	Published - 1 Apr 2001
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry

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abstract = "The chemical decompositions of β-alaninediacetic acid (ADA) and diethylenetriaminepentaacetic acid (DTPA) were studied in a pilot-plant flow-through system simulating alkaline (pH 10-11) hydrogen peroxide bleaching environments. The amount of hydrogen peroxide decomposition was evaluated, and the distribution calculation was performed. Under the conditions investigated, ADA was more degradable than DTPA (average residual 71% vs 94%). The decomposition of hydrogen peroxide was not dependent on the chelate; the residual percent of hydrogen peroxide was 40 in both cases.",

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AB - The chemical decompositions of β-alaninediacetic acid (ADA) and diethylenetriaminepentaacetic acid (DTPA) were studied in a pilot-plant flow-through system simulating alkaline (pH 10-11) hydrogen peroxide bleaching environments. The amount of hydrogen peroxide decomposition was evaluated, and the distribution calculation was performed. Under the conditions investigated, ADA was more degradable than DTPA (average residual 71% vs 94%). The decomposition of hydrogen peroxide was not dependent on the chelate; the residual percent of hydrogen peroxide was 40 in both cases.

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Decomposition of β-alaninediacetic acid and diethylenetriamine-pentaacetic acid by hydrogen peroxide in alkaline conditions

Abstract

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