Effects of Gluteraldehyde on Human Health

[AquaSutra]

please go through the medical journal "Effects of Gluteraldehyde on Human Health"

http://joh.sanei.or.jp/pdf/E48/E48_2_01.pdf

While one wears gloves while handling it , uses it it in a place which has good fresh air flow however how sensible is it ok to dip hand in the aquarium treated daily with Glut for plant maintenance ??

[AquaSutra]

http://www.mindfully.org/Health/Cidex-G ... 2jan02.htm

[jack]

my question now is how safe is this for fish ??
bad for humans, when we get in touch of it but how good for the fishes which is living in the water dosed with gluteraldehyde 24/7 ???

[deepesh]

I believe in water in aerobic conditions...

Gluteraldehyde --> glutaric acid --> carbon dioxide

I think...

Half life is about 12 hours --> should be negligible concentration in about 48 - 72 hours.

Therefore the brilliance of using of gluteraldehyde as a gradual source of carbon dioxide.

Of course it is a poison but like all poisons there is a lethal concentration that you must achieve. Just like alcohol!

[deepesh]

Sorry! Double post!

But you would be surprised at what aquarists put into their tanks - sugar, Vodka and what not.

[Arjun Tandon]

I believe in water in aerobic conditions...

Gluteraldehyde --> glutaric acid --> carbon dioxide

I think...

Half life is about 12 hours --> should be negligible concentration in about 48 - 72 hours.

Therefore the brilliance of using of gluteraldehyde as a gradual source of carbon dioxide.

Of course it is a poison but like all poisons there is a lethal concentration that you must achieve. Just like alcohol!

Considering that the half life is 12 hours,
For how many days can I store a diluted 1.5% solution if kept away from sunlight?
For how many days can an opened bottle of 25% Glut be stored in a dark bottle?

[deepesh]

The half life mentioned is for glut in biotic aquatic environments where it is broken down by microorganisms. I think it is quite stable in the glass bottles in the concentrations available. Low pH stabilizes glut to a half life of about a year or more, high pH results in a short half life of a few weeks to months and there occurs some oxidation in air but should not be of much concern with closed bottles.

No idea about the 1.5% solution glutaraldehyde really.

[Arjun Tandon]

Thanks.....those are the facts I've been reading everywhere on the net. They all say the same thing but there is nowhere mentioned how long 1.5% solution can be stored. Hoping Scorpio and others who have lots of experience with Glut could shed some light

[deepesh]

I would suggest you test your solutions pH. If at 7 then assume a half life of 100 days may be a little less.

Deepesh

[Arjun Tandon]

Ok....I have PH strips at home....But with them it's hard to make accurate predictions
Till then, I must Dilute less of Glut for usage.
As far as I know, the water of our area has high pH and is hard. So I dilute my Glut with RO water