ชุดทดสอบความเป็นกรด-ด่าง (pH 6.0 – 8.5)
pH Test Kit (pH 6.0 – 8.5)
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 a water solution they ionize, increasing the concentration of (OH)— or H+, respectively. Thus solutions with a pH of 1-3 contain strong acids, whereas those with a pH of 4-6 contain weak acids.
Weak bases result in solutions of pH 8-10 and strong bases in pH of 11-13.
HI 3881/0 test kit comes with 25 mL pH 6.0-8.5 reagent, 10 mL dechlorinating reagent and color comparison cube.