Is it safe to use 75% Alcohol with PP and other plastic-made container

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SUMMARY

Using 75% isopropyl alcohol (IPA) with polypropylene (PP) and other common plastic containers is generally safe for cleaning purposes. A chemical compatibility chart confirms excellent compatibility between polypropylene and isopropyl alcohol, although caution is advised at elevated temperatures. While some plastics may swell when exposed to IPA, polypropylene is unlikely to be affected. Conducting a simple test by applying a drop of IPA to the surface can help ensure no damage occurs.

PREREQUISITES
  • Understanding of chemical compatibility, specifically with isopropyl alcohol.
  • Basic knowledge of polypropylene (PP) properties.
  • Familiarity with consumer-grade cleaning agents.
  • Awareness of safe handling practices for chemicals.
NEXT STEPS
  • Research the chemical compatibility of various plastics with isopropyl alcohol.
  • Learn about the effects of temperature on plastic materials when using solvents.
  • Investigate safe cleaning practices for different types of plastics.
  • Explore alternative cleaning agents for sensitive surfaces.
USEFUL FOR

This discussion is beneficial for chemists, cleaning product manufacturers, and anyone involved in the safe handling and cleaning of plastic materials with isopropyl alcohol.

kenny1999
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Is it safe to use 75% Alcohol (Isopropyl) with PP and other plastic made container commonly found in the consumer market for cleaning? Could
there be any reaction and release toxic / harmful gases or materials?

I once studied Chemistry but left school for decades
 
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Other gases than just the alcohol vapor? Highly unlikely. Some plastics can swell in the IPA, but I doubt PP will.
 
Borek said:
Other gases than just the alcohol vapor? Highly unlikely. Some plastics can swell in the IPA, but I doubt PP will.

What does it mean "in the IPA"? In other words, can I safely clean the plastic stuff with consumer type alcohol of various concentrations which are safe to both the surrounding and the stuff itself (not damaging it)??
 
kenny1999 said:
What does it mean "in the IPA"?

IPA = isopropyl alcohol.

In other words, can I safely clean the plastic stuff with consumer type alcohol of various concentrations which are safe to both the surrounding and the stuff itself (not damaging it)??

Most likely - yes. Making a test by putting a drop of IPA on the surface and waiting won't hurt - not because of the health concerns, but to make sure it doesn't damage the surface leaving a stain.
 
The standard bottles in which isopropyl alcohol (both 72% and 91%) is sold are HDPE (high density polyethylene).
 

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