A modified chromium-reducible sulfur method for reduced inorganic sulfur

Optimum reaction time for acid sulfate soil

L. A. Sullivan, R. T. Bush, D. M. McConchie

Research output: Contribution to journalArticle

74 Citations (Scopus)


Reaction times for 16 acid sulfate soil materials analysed using a modified chromium-reducible sulfur method varied between 10 and 15 min, regardless of whether the samples had been dried and ground prior to analysis or were analysed without pretreatment. The reaction time for a ground (<63 μm) pyritic rock sample was 20 min. An optimum reaction time of 20 min is recommended for analysing acid sulfate soil using the modified method; this reaction time is much less than the 1 h reaction time used in previous methods.

Original languageEnglish
Pages (from-to)729-734
Number of pages6
JournalAustralian Journal of Soil Research
Issue number3
Publication statusPublished - 2000
Externally publishedYes


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