
TAYLOR R-0011L-C 2OZ CALCIUM INDICATOR LIQUID REAGENT
Product Overview
Liquid dye dispensing eliminates the dissolving delay of powder reagents during calcium hardness testing.
Formulated for Taylor drop test kits, the Taylor R-0011L-C (often packaged in case lots as C-12) Calcium Indicator Liquid delivers a distinct transition from red/dark purple to dark blue during hardness titrations. Packed in a 2 oz (60 mL) dropper bottle, this 2OZ solution replaces powder pillow packets with quick, drop-wise dispensing for accurate saturation index calculations.
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Benefits & What Makes It Different
Clear Color Endpoint
Transitions cleanly from dark purple to dark blue so you can identify the exact calcium hardness titration endpoint without guesswork.
Liquid Drop Dispensing
The 2 oz (60 mL) dropper bottle dispenses uniform droplets directly into the sample, avoiding the mess and dissolving lag of dry indicator powders.
High-Capacity Volume
Supplied in a 2OZ volume under item code R-0011L, this bottle yields approximately 1,200 drops to support routine testing through a full service season.
Product Details
Calconcarboxylic acid indicator dye in aqueous solution
Add 5 drops to prepared water sample pretreated with R-0010 buffer; swirl before titrating with R-0012.
Compatibility
- Taylor K-2005, K-2006, and K-1515 series drop test kits
- Standard Taylor 25 mL and 10 mL sample comparator cells
When To Use This
Pro Tip
When testing high-calcium water, if the purple color turns back toward red after adding your titrant, add 5 to 6 drops of R-0011L instead of the standard 5, and swirl for five full seconds between titrant drops to allow the complexometric dye to react completely.
Common Questions & Instructions
What is the difference between Taylor R-0011L liquid indicator and R-0011L powder?
Taylor R-0011L is a pre-dissolved liquid dye, whereas powder formulations require dipper measuring. The liquid mixes immediately into your test sample, preventing un-dissolved dye specks that obscure titration endpoints.
How long does a bottle of Taylor R-0011L calcium indicator remain usable?
Taylor reagents maintain consistent analytical potency for roughly 12 to 24 months when stored between 36°F and 85°F away from direct sunlight. Replace the bottle if the solution fades or fails to yield a blue endpoint.
Which test kits can be refilled with the Taylor R-0011L-C 2 oz bottle?
This 2 oz refill bottle works with standard Taylor titration sets, including the complete K-2005, K-2006, and FAS-DPD commercial series requiring calcium hardness evaluation.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.



