Hi Brooks, Did your positive evaluations include HDPE?
Thanks in advance. James-Osbourne: Holmes -----Original Message----- From: brooks bradley [mailto:[email protected]] Sent: Monday, August 27, 2001 3:38 PM To: [email protected] Subject: Re: CS>Plastic Bottles? In calendar 1998 we conducted rather extensive evaluations of various types of plastic containers.....primarily based upon an interest in CS storage mediums. Our research indicated PETE materials exhibited very stable storage parameters. No appreciable outgassing occurred over a 6 month period. At highly elevated temperatures (180 F.) some molecular migration was detectable; but not of sufficient magnitude to be of consequence. We found that conventional, commercially available, H202 bottles (any size) available at Walmart, Eckerd's, etc.....to be splendid containers------and excepting "near-boiling and above environments", to be....essentially.....as reliable as glassware. As we use enormous amounts of H202 (in pint and quart bottles), we have ample numbers of CS containers for all our needs. Although there are a number of more structurally-rigid thermo-setting plastics of special chemistry available, it seems economically counter-productive to invoke a steel mallet where a fly swatter is quite adequate. Interestingly, it appears the list is challenged to revisit this topic--- with an almost calendar-like precision......every year or so. : >) Sincerely, Brooks Bradley ----- Original Message ----- From: "Frank Key" <[email protected]> To: <[email protected]> Sent: Monday, August 27, 2001 8:20 AM Subject: Re: CS>Plastic Bottles? > [email protected] wrote: > > > a quick google search found: > > http://www.uni.edu/pubrel/newsroom/op-ed/chemdep.shtml > > ". Related compounds, pthalates, used in making ubiquitous flexible > > polyvinyl products, caused dramatic decline in testosterone and > > missing or blood-filled testes in rats, according to a recent EPA > > study. The Center for Disease Control recently found pthalate > > residues occurring at an alarming rate in the urine of randomly > > tested children and adults". > > There has been a bit of news coverage regarding the use of pthalates > > in infants toys and endocrine disruption. > > see also: > > http://ehpnet1.niehs.nih.gov/docs/2000/108p1189- > > 1193ohtani/abstract.html > > > > > > phthalic acids are xenoestrogens not good for your endocrine system... > > > > they leach! HDPE would be more appropriate for storing ingestables. > > > This quoted reference says that "pthalates, used in making ubiquitous flexible > polyvinyl products..." caused problems. > > The reference article does not say that pthalates leached from containers PETE. > > From the published literature on PETE, there is every indication that the substance is very stable and does not contaminate liquids stored in PETE containers over extended periods of time. > > frank key > > > > > > frank key > > > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail message to: > [email protected] -or- [email protected] > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: [email protected] > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > List maintainer: Mike Devour <[email protected]> >
