Chemical lifetime

[Ed Buell]

Love my test kit.

Have a question. I'm getting ready to order some refills.
My R0012 has some "stuff" floating in it. Is it OK to continue to use
or should I order a refill?

 

[Bama Rambler]

To be on the safe side I'd order new reagent.

 

[Patrick_B]

I would too. This is twice I've heard of this now. Very strange.

 

[Ed Buell]

will do

its not much $$ anyway.

as always thanks for the help and guidance.
Ed.

 

[jblizzle]

I agree ... but if you are not in a hurry ... there is usually a sale on refills from tftestkits in March (I think)

 

[duraleigh]

Jblizzle is correct.

Our one and only annual refill sale takes place beginning March 2.

You can get all fresh chemistry and essentially have a new TF-100 kit for 20% off.

 

[Ed Buell]

thanks for that info.....................after I ordered the 3 things i need yesterday......................

Ed

 

[chem geek]

See Recognizing a Compromised Reagent from the Taylor website. To be on the safe side, you should replace any of the organic dyes most frequently (R-0600 OTO liquid, R-0870 DPD powder, R-0004 or R-0014 pH indicator, R-0008 TA indicator, R-0011L CH indicator) and the FAS-DPD reagent (R-0871). There are some reagents with a reasonably long shelf-life, but you could replace every few years (R-0003 potassium iodide, R-0007 thiosulfate, R-0013 melamine). Everything else should last for many, many years since they are just acids and bases (R-0005 acid, R-0006 base, R-0009 acid, R-0010 base). I've listed components from both the Taylor K-2006 and the TFTestkits TF-100 so not all are present in each kit.