If distilled water is stored in HDPE 2 plastic less than one year are there any studies of the concentrations of chemical leaching? [duplicate]








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[Can plastic leak into water from a HDPE "2" plastic container at room temperature?](/questions/24444/can-plastic-leak-into-water-from-a-hdpe-2-plastic-container-at-room-temperatur)

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I don't belive this is an allowed question or appropriate for chemistry but since it would require some laboratory to test if any chemical leached in any signigicant quantity into the distilled water after some appreciable time it may be OK


I read different opinions on this and is very interesting but have never actually seen a study that used analytical and chemical analysis to evalute the concentration of leached chemcials in HDPE 2 plastic containers.


We must assume the containers are stored in a cool, dry place of constant humidity and temperature.


This is from strictly a chemical analysis point of view. The chemistry of distilled water vs. HDPE2. What chemical reactions occur less than one year?


Let me know if it can be asked in an appropriate manner.




Polyethylene itself slowly [decomposes and oxidizes](https://en.wikipedia.org/wiki/Photo-oxidation_of_polymers), particularly in sunlight.


There also *may* be plasticizers in HDPE that [slowly leach out](https://pubmed.ncbi.nlm.nih.gov/21400322/).


Whether either is meaningful depends on usage. *Any* contamination in materials used for spectroscopy or other analysis *might* be significant. Probably, contamination if intended for medical purposes is harmful. *Some* in drinking water *might* be tolerated. There are too many vaiables to give a comprehensive answer.


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