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Laboratory Protocols & SOPs Library

Paraformaldehyde (2%)

· Published 2023/07/27 · Updated 2025/06/09

Recipe - To make 100ml of 2% Paraformaldehyde

1.Add 2 grams of paraformaldehyde to 48 ml of water

2.Heat to dissolve

3.Add NaOH dropwise until solution clears (10-20 drops of 2M)

4.Add 50ml of 2x PBS and mix

5.Remove from heat and place on ice

6.pH from 7.2 to 7.4

Categories: Laboratory Protocols & SOPs Library

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. "Paraformaldehyde (2%)" Aladdin Knowledge Base, updated 2025/06/09. https://www.aladdinsci.com/us_ja/faqs/paraformaldehyde-2-per-en.html

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