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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R-0870-DPD Powder (10 g)

Product ID: 285143021

Details

Brand
Taylor
Item form
Powder
Item weight
0.01 Ounces
UPC
840036002049

🧪DPD reagent for accurate chlorine testing

⚖️10g precision powder

🏊‍♂️Optimized for pool & spa water chemistry

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Description

🧪 Stay ahead in pool care with precision you can trust!

COMPACT CONVENIENT - Small 10g container fits perfectly in your testing kit
TRUSTED TAYLOR QUALITY - Backed by a 4.7-star rating from over 1,100 pros
POOL SPA WATER BALANCE - Helps maintain crystal-clear, safe swimming environments
PRECISION PACKED 10 G POWDER - Exact dosing for consistent, reliable water testing
CHLORINE TESTING MADE SIMPLE - DPD reagent ensures pinpoint accuracy in chlorine measurement

Taylor Technologies R-0870-DPD Powder is a 10-gram container of high-quality DPD reagent designed for precise chlorine testing in pools and spas. Trusted by professionals and rated 4.7 stars, it ensures accurate water chemistry balance for safe, sparkling water.

Specifications

ASIN	B0002IXJ1M
Brand Name	Taylor
Customer Reviews	4.7 4.7 out of 5 stars (1,139)
Item Form	Powder
Item Type Name	Taylor Technologies R-0870-I DPD Powder for Swimming Pool, 10gm
Item Weight	0.01 Ounces
Manufacturer	Taylor Technologies, Inc
Manufacturer Part Number	R-0870-I
Model Number	R-0870-I
Number of Items	1
Product Benefits	Assists in maintaining balanced water chemistry and accurate testing for pool and spa water treatment
UPC	840036002049

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