ชุดทดสอบ HI3818 มาพร้อมกับตัวบ่งชี้ฟีนอล์ฟทาลีน 10 มล., รีเอเจนต์คาร์บอนไดออกไซด์ 120 มล., ถังสอบเทียบ 10 มล., ถังสอบเทียบ 50 มล. และกระบอกฉีดยาสอบเทียบ
Carbon dioxide levels can be measured quickly and safely with the HANNA Carbon Dioxide Test Kit. This compact, portable kit allows the user the option of field or laboratory use. The design makes the kit easy to handle and, except for the Carbon Dioxide Reagent, practically prevents accidental injury or damage due to spills.
Carbon dioxide (as carbonic acid) in the water sample is neutralized with a dilute sodium-hydroxide solution to a pH of 8.3 using a phenolphthalein indicator. This process converts carbonic acid to sodium bicarbonate:
CO2+H2O → H2CO3+NaOH → NaHCO3+H20
Order Information:
HI3818 test kit comes with 10 mL phenolphthalein indicator, 120 mL carbon dioxide reagent, 10 mL calibrated vessel, 50 mL calibrated vessel and calibrated syringe.
Manual: Download
Method | Titration | |
Range | 0.0-10.0 mg/L 0.0-50.0 mg/L 0-100 mg/L |
|
Smallest Increment | 0.1 mg/L 0.5 mg/L 1 mg/L |
|
Chemical Method | Phenolphthalein | |
Number of Tests | approx. 110 | |
Weight | 460 g |