How long can bacto balance be used after opened?

[Dvir]

Hi,

I have a bottle that was opened 18 months ago and wasn't used since. Is it safe to use?

Thanks

 

[Dvir]

Anyone?

 

[Dvir]

Trying one last time

 

[Pod_01]

Trying one last time

I suspect you are good to go, maybe with evaporation it becomes stronger/ maybe not.

But let the experts chime in @Lou Ekus , @Hans-Werner (hope that works).

 

[Lou Ekus]

Was the bottle closed back tightly after it was open? Do you see any precipitate or "growth" in the bottle? Was the bottle in dark place during this storage period?

 

[Dvir]

Was the bottle closed back tightly after it was open? Do you see any precipitate or "growth" in the bottle? Was the bottle in dark place during this storage period?

The bottle was closed normally. I don't see any growth in the bottle and the bottle was in a closed cabinet most of the time during this storage period. The liquid seems to be more on the "purpl-ish" side now, I think it was a bit more pink when when I purchased it, nontheless the liquid seems "clear".

 

[Lou Ekus]

The bottle was closed normally. I don't see any growth in the bottle and the bottle was in a closed cabinet most of the time during this storage period. The liquid seems to be more on the "purpl-ish" side now, I think it was a bit more pink when when I purchased it, nontheless the liquid seems "clear".

It sounds like it is perfectly fine to use to me.

 

[ctopherl]

It sounds like it is perfectly fine to use to me.

Can I put it in a clear dosing container or will light/small amounts of air contaminate it?

 

[Lou Ekus]

Can I put it in a clear dosing container or will light/small amounts of air contaminate it?

Light doesn't really "contaminate" it. But just like any other solution with any kind of organic compound in it, the more exposure to light or heat, the sooner you will see some growth of bacteria. So, in generla, keeping it dark and cool will extend shelflife.