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Ilford Ilfotol use after expiring date

I've just found out recently that the Ilford Ilfotol surfactant that I use to make my diy RCM fluid has an expiration date and that shelf life once opened is 12 month. I would like to ask to the expert what can be the impact on using an expired product of this type, if any. For sure I didn't noticed anything wrong last time I made the fluid, no particles or mold traces.
Thanks in advance for who will take the time to reply.

Cheers
katylied
mijostyn's avatar
mijostyn
8,570 posts
 
Katylied, don't worry about it. It has to meet certain requirements for the scientific community. These dates are very conservative. So. maybe it does not perform exactly to spec. For your purpose it is perfectly fine. It is also a great way to increase business and they can all say the government made them do it. The Pharmaceutical and food industries are rampant with this.  
lewm
13,103 posts
 
Standard nonionic detergents like triton x100 and tween20 last “forever”, so maybe this is not a nonionic type. I’d have to look at the formula.

On second glance, the very name suggests it is for washing photos. So it probably has certain additives that may be less stable that the base detergent, just as does Kodak photoflo. I wouldn’t use it just on that basis but many do use photoflo and the like.
best-groove's avatar
best-groove
842 posts
 
I use an Agfa wetting agent taken 20 years ago for the record washer liquid and fearing over the years of having problems I asked those who are interested in photography if the expiration of the product could worry, they said no .... in the limit it loses only a pinch effective after several years but nothing beyond.
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