superglue burning eyes

Don pianotuna at yahoo.com
Thu Apr 27 20:54:46 MDT 2006


Hi Mark,

You may well be right.  Here is a less technical description that clearly
states it is not cyanide.

http://www.ca-plus.com/faq.html

At 07:09 PM 4/27/2006 -0700, you wrote:
>Hi, Don.
>
>I looked at the link you provided, and while I'm not altogether certain, 
>I think it's saying that the formaldehyde is a byproduct of hydrolysis 
>resulting from degradation of the polymer after it's in situ for some 
>period of days, not during curing. To wit:
>
>"Hydrolytic degradation of polymers (e.g., cyanoacrylate polymers) to 
>smaller oligomers involves a hydrolysis reaction. Release of 
>formaldehyde as a by-product of cyanoacrylate hydrolytic degradation and 
>the resultant cytotoxic or histotoxic effects have been reported and 
>documented in research and medical journals (Trott, 1997)."
>
>   and also
>
>"We recommend that you report results for these by-products of material 
>decomposition present in saline extract at 50°C for a period of 15 days 
>via Gas and/or Liquid Chromatography. The analytical procedure should be 
>sensitive to ppm level."
>
>I've looked at several Material Safety Data Sheets, and they all warn 
>against irritation of mucous membranes from fumes, but so far I've not 
>found any that talk about toxicity of the fumes.

Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
Non calor sed umor est qui nobis incommodat

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