My dpd powder looks crystalized. Bought it last year and just opened it. Is it bad?

This reagent is one of those with a shorter shelf life in the Taylor catalog. There should be an expiration date printed on the bottle. It may still be good, but proceed with care if it is over a year old. According to Taylor, with respect to the R-0870 reagent, this may help you identify if the reagent has become compromised and should be discarded: "As it degrades, the color will turn from an off-white color to gray or purplish gray and will gradually become a purplish brown color." As a general precaution, Taylor recommends replacing all reagents more than one year old.

what is the expiration date

The seller on mine was EZ Test Pool Supplies and the expiration Date is 08/22

Is there any way to know the expiration date of the current product? Some seller sent me product expired last year?

All product is 1 or 2 years for expiration. Ask the seller to send a newer one.

What is the difference between R-0870 and R-0870-l ?

R-0870 is the number of the reagent. The additional suffix such as -I or -J indicates the size. R-0870-I is 10 grams. R-0870-J is the same reagent in 0.25 lb size.

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🧪 Elevate your water testing game with precision-packed purity!

PURE DPD FORMULA - Formulated by Taylor Technologies for unmatched reagent accuracy and performance.
COMPACT PORTABLE - Small 3.8 x 3.8 x 5.1 cm container fits effortlessly in your testing kit or lab space.
TRUSTED BRAND LEGACY - From Taylor Technologies, a name synonymous with professional-grade water analysis tools.
PRECISION IN EVERY GRAM - Exact 10g powder ensures consistent, reliable water testing results every time.
MANUAL POWER MAXIMUM CONTROL - No batteries needed—empower your testing with hands-on precision and zero downtime.

Taylor R-0870-DPD Powder is a 10-gram replacement reagent from Taylor Technologies, designed for precise and reliable water testing. Packaged in a compact metal container, this manual-use DPD powder reagent ensures consistent results and fits seamlessly into professional water analysis workflows.

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Action	add
Color	As Shown
Height	1.3 inches
Length	2 inches
Weight	28 g
Width	1.1 inches
Material Type	Metal
Number of Items	1
Power Source	manual
Batteries Included?	No
Brand	Taylor
Manufacturer	Taylor Technologies, Inc
Item model number	R-0870-I
Product Dimensions	3.81 x 3.81 x 5.08 cm; 0.28 g
ASIN	B0002IXJ1M

Taylor R-0870-DPD Powder (10 g)

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