Solutions 

ORP (Oxidation Reduction Potential) electrodes are used to measure a chemical reaction in which one species is being oxidized and another is being reduced. The loss of electrons by an element or compound is known as oxidation reaction while the gaining of electrons by an element or compound is known as reduction reaction. For example, plating companies that have hexavalent chromium (Cr⁶⁺) in their wastewater must reduce it to a safer trivalent chromium (Cr³⁺) form. This reduction reaction occurs in the presence of a strong reductant such as sodium metabisulfite. The addition of the reductant must be measured with an ORP electrode to ensure that there is an adequate reducing potential. Using the HI7091L reducing pretreatment solution prior to taking a measurement provides for a faster response time in a reducing environment.

The HI7091 bottle is labeled with

• Product code
• Lot number
• Expiration date

Air tight bottle with tamper-proof seal

• Ensures quality and freshness of solution