Hach Acidity Reagent Set
Features
- Ranges: 10-160 and 1000-4000 mg/L as CaCO₃
- Approximately 40-100 tests
- Phenolphthalein & bromphenol blue powder pillows and two cartridges
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The Hach acidity reagent set is designed to determine acidity by Digital Titrator titration, with Methyl Orange (using bromphenol blue indicator) and Phenopthalein endpoints. Bromphenol blue (pH 3.7) or phenolphthalein (pH 8.3) indicator is used to titrate the sample with sodium hydroxide to a colorimetric endpoint. Bromphenol blue gives a better endpoint than the methyl orange indicator. Titration to pH 3.7 determines strong mineral acidity (also referred to as methyl orange acidity), whereas the pH 8.3 phenolphthalein endpoint includes weaker acid species and represents the total acidity. The results are expressed in mg/L as calcium carbonate (CaCO3) at a specified pH.
- Range: 10 - 4,000 mg/L as CaCO3
- (100) Bromphenol blue powder pillows
- (100) Phenolphthalein powder pillows
- (1) Sodium hydroxide titration cartridge, 0.1600 N
- (1) Sodium hydroxide titration cartridge, 1.600 N
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In The News
Ocean acidification: University of Washington's giant plastic bags help control research conditions
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NOAA Alaska buoy network to monitor North Pacific ocean acidification
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Cal Poly, San Luis Obispo Manages Monitoring Efforts in Morro Bay
California Polytechnic State University, San Luis Obispo (Cal Poly, SLO), has been monitoring Morro Bay for decades, and while the monitoring program has changed over the years, the dedication to monitoring the bay has remained the same. The project started in 2006 as a Packard Foundation-funded initiative to monitor water quality flowing in and out of Morro Bay. The goal at the time was to use the data collected to develop and inform an ecosystem-based management plan in collaboration with the Morro Bay National Estuary Program (MBNEP). Since the estuary was the focus at the time, researchers were monitoring water flowing into the estuary from Chorro Creek and Los Osos Creek.
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