Protocols

Bromthymol Blue Recipe

· Reviewed · Published Jun 9, 2025 · Updated Jul 27, 2023 · 8 min read

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

Categories: Protocols

Da — when not otherwise indicated, molecular weight units are daltons. Mw — weight-average molecular weight. Mn — number-average molecular weight.

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Cite this article

Aladdin Scientific. "Bromthymol Blue Recipe" Aladdin Knowledge Base, updated Jul 27, 2023. https://www.aladdinsci.com/us_en/faqs/bromthymol-blue-recipe-en.html

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