Diphenylisooctyl phosphate (C20H27O4P), also known as 2-ethylhexyl diphenyl phosphate and plasticizer DPOP, is used as an additive flame retardant and flame retardant plasticizer. It is suitable for adhesives based on synthetic resins and synthetic rubber, and can improve weather resistance, wear resistance, moisture resistance, and toughness. This experiment measured the moisture content of diphenyl isooctyl phosphate samples using V-310s.

1. V-310SCoulombic Karl Fischer moisture analyzer;

2. Electrolytic cell;

3. Electrolytic electrode;

4. Measuring electrodes;

5. 1mlsyringe

6. 1ulsyringe

8. Analytical balance at one ten thousandth

Titrating agent: Karl Fischer water reagent；

Solvent:;

Auxiliary reagents: none;

Control accuracy: 0.1ug

Mixing speed: 20%

Auxiliary functions: Method saving, automatic calculation and storage of results, equipment calibration, titration delay.

Titration delay: 10 seconds

Endpoint Delay: Automatic

Drift deduction: enabled

Drift value update: automatic

Delay setting: Delay titration and endpoint delay functions can be set as needed to deal with insoluble samples

1Add liquid to the electrolytic cell using the instrument's liquid addition function30mlLeft and right electrolyte.

2, Use1ulThe injection needle, combined with the electrolytic function of the instrument, adjusts the balance of the electrolytic cell.

3UsingThe syringe is extracted from the sample bottle0.2gPlace the left and right samples into an electronic balance for weighing, and inject them into the electrolytic cell through the sample inlet after weighing. Press the start button

4After the instrument measurement is completed, the results will be automatically displayed

Sample: Aldehyde benzoic acid

Environmental humidity: 30%

Environmental temperature: 29 ℃

Determination order

injection volume

g

Titration volume

mL

water content

ug

Measurement duration

m:s

Measurement results

%