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It is easy to use and practical to detect the pH value of water quickly

The pH value is one of the commonly used indicators to detect water pollution. The pH value of water used in daily life is required to be within the range of 6.5 to 8.5. In order to prevent some metal containing equipment or pipes from being corroded in industrial water, the pH value is required to be between 7.0 to 8.5. How to detect the pH value of water? Next, I will introduce some quick methods to detect the pH value in the water quality. Interested partners can take a look together.

The first rapid detection method of pH value: colorimetry. This method is simple and commonly used, but the measurement results are not so accurate. Take a piece of test paper for pH value test, then divide the test paper into three to four pieces, and put them on a clean and dry glass plate. Use a glass bar to put the water to be tested on the test paper respectively, and each test paper can have a little water. After a while, you can directly hold the standard pH value color card for comparison. Sometimes the result error of this kind of test will be relatively large. It's a common small test to join the stock market. You can use this method, but it's not recommended for professional test.

The second method is the glass electrode method. This method is quite professional, and requires quasi professional instruments for testing. First, prepare acidimeter or ion meter, glass electrode and saturated calomel electrode. Then prepare standard reagents according to professional operation. Prepare two kinds of reagents, one is adding pH standard buffer solution, the other is adding pH standard buffer solution B. Then operate according to the instructions of the instrument, and finally read the pH value.

These two methods can measure the pH value of the effluent. The first method can be tested at home. The steps of the instrument are very simple. The second method is more professional and needs to be operated under the guidance of professionals.