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Tag Archives: pH 4.0 – 8.0

ชุดทดสอบความเป็นกรด-ด่างของน้ำ (pH 4.0 – 8.0)

HI 3881-5 pH Test Kit (pH 4.0 – 8.0) Product Description: pH represents acidity or alkalinity of an aqueous solution and is proportional to the hydrogen-ion concentration of the solution. Under neutral conditions water is dissociated into the (OH)— and H+ ions in equal ratio and hence it has a pH of 7. When bases or acids are added to ... Read More »

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