CODThe digestion device is based on the potassium dichromate oxidation method or potassium permanganate oxidation method, and achieves sample digestion through the following steps:

Add a known amount of potassium dichromate standard solution to the water sample, and use silver sulfate as a catalyst in a strong acid environment.

The device precisely heats the reaction system to the set temperature through a heating module and maintains a constant temperature.

At high temperatures, potassium dichromate undergoes oxidation-reduction reactions with reducing substances in water samples. After a fixed time, the reaction reaches completion and the digestion process is completed, which is used for subsequent titration or photometric detectionCODThe value lays the foundation.

CODDissolverTechnical features:

1Efficient and energy-saving:

By using a microcomputer controlled heating plate, multiple digestion bottles can be heated simultaneously, improving processing efficiency.

After digestion is completed, the instrument automatically stops heating and the fan continues to work for one hour to assist in sample cooling and save electricity.

2Safe and reliable:

Equipped with a safety cover to prevent tube rupture and high chemical splashes caused by accidental contact with hot surfaces, avoiding burns.

Equipped with overheat protection function, it ensures that the equipment automatically shuts off in case of abnormal conditions, protecting the safety of operators and equipment.

3Easy to operate:

It is convenient to set digital temperature and time to meet the digestion needs of different water samples.

After digestion is completed, the instrument automatically reminds and stops heating work, with fan assisted cooling to reduce manual intervention.