Zero Toxics Knowledge Base
POLYPROPYLENE is the second-most widely produced commodity plastic (after polyethylene) and it is often used in packaging and labeling.
Polypropylene is very similar to polyethylene but has greater resistance to heat, which is why it is often used for food packaging and food storage bags and containers.
The Globally Harmonized System (GHS) classification for polypropylene is “non-hazardous.”
The Hazardous Materials Identification System (HMIS) Health rating for polypropylene is “0”.
According to its Safety Data Sheet, polypropylene has not been found to be carcinogenic by the National Toxicology Program (NTP), the Association Advancing Occupational and Environmental Health (ACGIH), the International Agency for Research on Cancer (IARC) or the Occupational Safety and Health Administration (OSHA).
Global Organic Textile Standard (GOTS) approves certain non-agricultural materials for use in making GOTS-certified products that are primarily made from organic agricultural materials. These “approved” materials must meet the portion of their standard that prohibits a whole list of toxic chemicals. “GOTS-Approved Polypropylene” is polypropylene that qualifies to be used in GOTS-certified organic products because it does not contain any of the prohibited chemicals listed in Section 2.3 of Manual for the Implementation of the Global Organic Textile Standard.
This makes polypropylene one of the few plastics approved by GOTS for the making of the incidental “accessory” pieces needed to construct a quality product.
CAUTION: While polypropylene is relatively stable, and it is generally considered a safer plastic for food and drink polypropylene has also been shown to leach plastic additives (such as the stabilizing agent oleamide) when PP disposable labware was used in scientific experiments. So consider how the PP is being used and how you will be exposed to it, length of time of contact etc. Some uses will be fine others, such a leaving food in a PP storage container out in the sun, or pouring hot soup in a PP container, with facilitate the leaching of chemical components.
ZERO TOXICS IS LIKE A PUZZLE
In this Knowledge Base, i'm gathering together bits and pieces of information about materials used to make products, and bringing some order to them so we can all better understand what's in our products. So many pages will be incomplete as I go through this process. When I feel I've put together a fairly complete picture of the material, I'll take down this notice from this page.
ZERO TOXICS is rooted in my forty years of research and experience living toxic-free. I'm gathering and organizing the data I have to make this knowledge available to everyone. Feel free to ask questions, share data, and join in the discussion in the comments section below.
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