A caustic soda concentration meter that achieves very high measurement accuracy.
The measurement is conducted by titrating the sample with hydrochloric acid and reaching a colorimetric endpoint corresponding to a specific pH. In this measurement, phenolphthalein is used as an indicator. In the initial state, when it reacts with caustic soda, the solution shows a deep pink color (pH > 8). Subsequently, as it reacts with the titrating acid, the pH decreases, and when it reaches pH < 8, it surpasses the equivalence point of caustic soda, and the color of the solution changes to colorless (transparent). By using an LED of appropriate wavelength and a photometer, high measurement accuracy is achieved.
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basic information
Measurement range: Adjustable based on the acid concentration of the titrant Accuracy: ±2% Repeatability: ±2% Reproducibility: ±2% Analysis time: Approximately 15 to 20 minutes Calibration: Single-point calibration LED wavelength: 545 nm
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Applications/Examples of results
Raw Water Treatment Plant (PWTP) Wastewater Treatment Plant (WWTP) Can accommodate various other applications.
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Company information
Sunny Trading has consistently specialized in the import and sales of automatic control and labor-saving equipment since its establishment in 1961, actively introducing the latest high-performance machinery and equipment from Europe and the United States to the domestic market. The components for production machinery that we handle are widely adopted in industries such as machinery, electrical, and chemical, and we take pride in our extensive delivery track record to national government agencies, universities, research institutions, and the aerospace industry. The delivered parts are incorporated into machines to complete large production facilities, but confirming the compatibility of the products is essential for this process. We always strive to provide appropriate products by investing technical know-how and time for specification confirmation between overseas manufacturers and our customers. Additionally, we take responsibility for follow-up services, including on-site inspections of delivered products and maintenance. Unlike general trading companies that simply import and sell goods, we pride ourselves on being a trading company with engineering capabilities. Products are commercialized as machines by manufacturers, and they are actively utilized in core industries such as semiconductors, steel, shipbuilding, aerospace, packaging, logistics, and chemicals.
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