Bromocresol green acid-base indicator solution:
pH Range 3.8 to 5.4, Color change Yellow to Blue
Accurately weigh 0.1 g of bromocresol green into a brown container flask. Add 14.3 ml of 0.01 M NaOH + 235.7 ml distilled and deionized water and swirl to dissolve (Lide 1991).
http://www.gsf.fi/foregs/geochem/foregs7鈥?/a>
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