
Hardness Reagent (1 drop = 10 ppm hardness as CaCO₃), 2 oz, Dropper Bottle

Silver Nitrate, 1 N Standardized Solution, 1L, CAS# 10039-32-4
Phenolphthalein, 2% w/v in Denatured Ethanol, 120 mL
pH 8.0 (colorless) - pH 10.0 (pink) (1 per EA)
Manufacturer: 710 Spirits Rocky Mtn Reagents
Phenolphthalein, 2% w/v in Denatured Ethanol, 120 mL is available to buy in increments of 1