What is the smell from the new plastic storage box

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Discussion Overview

The discussion revolves around the odor emitted from a new plastic storage box, specifically focusing on the potential causes of the smell, which may include various chemical compounds associated with the plastic material. The scope includes exploratory reasoning about the properties of plastics and their emissions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant notes that the storage box is likely made of polypropylene (PP) and questions whether the smell could be due to vaporized plastic.
  • Another participant argues that plastic cannot evaporate due to the size of polymer molecules but suggests that volatile organic compounds (VOCs) from the synthesis process may be present.
  • Several participants propose that the smell could be due to plasticizers or mold-release compounds, with one specifically mentioning phthalates as common plasticizers.
  • It is noted that most plastics outgas VOCs, with PVC being highlighted for its notorious outgassing, particularly in new products like shower curtains.
  • One participant agrees with the idea of a mold release agent and mentions that the foul smell should dissipate in a well-ventilated area.
  • A participant humorously notes their terse typing due to a cat's impatience, adding a personal touch to the discussion.

Areas of Agreement / Disagreement

Participants express multiple competing views regarding the source of the smell, with no consensus reached on a single explanation.

Contextual Notes

The discussion does not resolve the specific chemical identity of the odor or the exact mechanisms of outgassing, leaving several assumptions and definitions open to interpretation.

kenny1999
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It's a tool storage box, probably made of PP (According to the label)
When its lid opened, quite an obvious (but not very strong) smell coming out
,what it could be? vaporized form of plastic?
 
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A plastic can't evaporate because the polymer molecules are too large for that. However, a new plastic material can probably contain some traces of small-molecule volatile organic compounds it was synthesized from.
 
Plasticizer ? Mold-release compound ?
 
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Merlin3189 said:
Plasticizer ? Mold-release compound ?
That would be my guess, phthalates are common plasticizers
 
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Almost all plastics outgas VOCs--some more than others. PVC is notoriously known for its outgassing smell, especially new shower curtains.
 
I'd say 'mould release agent', too.
Foul smell should soon dissipate in a well-aired environment.

Regret terse typing due to hungry cat protesting unacceptable delay on desk...
 

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