1
$\begingroup$

Should Formaldehyde (37%) be stored at 5 degrees C or lower? Will it damage the Formaldehyde?

$\endgroup$
1

2 Answers 2

3
$\begingroup$

In the cold some paraformaldehyde (formaldehyde polymer) or trioxymethane (a cyclic condensation product of three formaldehydes) may precipitate. It will depend on how much methanol has been added to avoid the polymerization products. Normally it will contain 10 to 15% methanol.

In reality, it is not necessary to store formaldehyde solution in the cold.

$\endgroup$
2
  • $\begingroup$ [deleted]........... $\endgroup$
    – Waylander
    Feb 16, 2018 at 15:55
  • $\begingroup$ @Waylander Right, we have it in a safety cabinet at room temperature. $\endgroup$ Feb 16, 2018 at 16:06
2
$\begingroup$

The MSDS for 37% aq formaldehyde says this: "Store in a segregated and approved area. Keep container in a cool, well-ventilated area. Keep container tightly closed and sealed until ready for use. Avoid all possible sources of ignition (spark or flame)" http://www.sciencelab.com/msds.php?msdsId=9924095

Combined with the answer below I would say not to store it cold.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.