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Bromthymol Blue Recipe

Recipe

Aqueous version

1.Add 0.1g Bromthymol blue into 16ml of 0.01N NaOH

2.Mix in a mortar or small tube

3.Dilute to 250ml with distilled water

4.Use 5 drops in 10ml of test solution

Alcohol version

1.Add 0.5g of Bromthymol blue into 500ml of 95% ethanol and dissolve

2.Add 500ml of distilled water

3.Filter and store at room temperature

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