Sodium Hypochlorite Manufacturing Variations
Sodium hypochlorite is produced and used in a state of the art Powell Continuous
Flow Sodium Hypochlorite Manufacturing Process. Aside form the clarity and purity
of our product, most customers are interested in the percent Available Chlorine
and percent Excess Alkalinity of the sodium hypochlorite.
The measurement of these qualities requires a detailed chemical titration. There
is not practical way of directly monitoring qualities during manufacturer. Instead,
our machinery monitors a related voltage called the “Oxidation Reduction Potential”
or “ORP”. The operator makes chemical titration and instructs the microprocessor
to adjust its chemical reaction by adjusting this voltage until the product titrates
to the correct values.
Although a direct monitor is not practical, having such a device wouldn’t help the
customer understand the qualities of his received product anyway, since the specifications
of interest are for the chemical after filtration and typically 24 hours of storage.
Sodium hypochlorite samples were taken, as shipment is ready for delivery and runs
titration tests on them. Thirteen of the most recent samples at a producer’s site
tested as follows:
This article is available as a PDF.
Click here to download it. For more information about chlorine, visit