I have no reason to assume the TF powder does not test exactly the same as the white Taylor powder, but I thought I would ask raise the question due to the different look and texture of the TF brand 870 DPD powder. And also to ask if the experts here use TF brand reagents with full confidence (assuming they are stored in a cool, dry place and not outdated). 3/28/24 I purchased a full Refill Kit of reagents from TF Test Kits for the K-2106 Taylor test kit. On 4/16/24, when I first opened the TF Test Kits R-0870 DPD powder, it was not all white and relatively consistent in granule size as the original Taylor powder. The TF Test Kit R-0870 powder had black crystals as well as white that were much larger than the biggest (still small, but not powder size) ones in the Taylor kit's 870 powder. Thinking those larger chunks would take longer to dissolve, and the black ones might? be a different composition than their white counterparts, I sifted the powder though a tea strainer screen. The chunks had to be pressed pretty hard to get the crystals to break apart to fit through the screen. Halfway through the process, the now crushed, much smaller pieces that still did not fit through the screen, I just called good enough, and dumped back into the original 10 gr. container. I hope this did not negatively affect the product (I doubt it).
OCD Reagent storage question:
Is storing reagents that are in current use (not extra overstock) in the house with a room's ambient light and temperature (64º-78ºF), never in direct sun by a window, and in the blue Taylor Kit box any worse than say inside a cabinet (same ambient room temp, but in the dark)? I doubt it would be measurable, but I'll ask the experts here anyway.
For storing most of the reagents in my TF Refill kit that will not be needed for 6–12 months, what is the best way to store them. Normally it's said to be a cool, dark, dry place. Currently, I am storing my extra overstock liquid reagents in my refrigerator, in a sealed ziplock bag in a 38ºF vegetable drawer. Is that ok and could it marginally increase the self life over being stored in a cabinet (dark) at room temp. (64º-78ºF)?
OCD Reagent storage question:
Is storing reagents that are in current use (not extra overstock) in the house with a room's ambient light and temperature (64º-78ºF), never in direct sun by a window, and in the blue Taylor Kit box any worse than say inside a cabinet (same ambient room temp, but in the dark)? I doubt it would be measurable, but I'll ask the experts here anyway.
For storing most of the reagents in my TF Refill kit that will not be needed for 6–12 months, what is the best way to store them. Normally it's said to be a cool, dark, dry place. Currently, I am storing my extra overstock liquid reagents in my refrigerator, in a sealed ziplock bag in a 38ºF vegetable drawer. Is that ok and could it marginally increase the self life over being stored in a cabinet (dark) at room temp. (64º-78ºF)?
