1 A buret is used to titrate liquids.

2 Titrate some chloroform and observe.

3 Titrate the mixed solution with ethanol solution of acetic acid.

4 Titrate the solution with 0.01 M potassium permanganate until a light red colour appears.

5 Add Ferroin indicator and titrate with 0.025 N ferrous ammonium sulphate solution.

6 On this paper the microscale titrate analysis experimental microscale titrate installation of made by oneself.

7 Use 0.1M standard NaOH solution titrant to titrate the solution from red colour to orange.

8 Titration:use a standard solution to titrate with a sample solution to find its molarity .

9 Finally obtains the precisionhighest titrate speed through the analysis comparison, order to old standard improvement.

10 Use a standard solution to titrate a sample solution to find its molarity.

11 Set up a curvilineal equation of acid-base titration, and every pHysics meanings in the equation and factors of the effect its titrate suddenly jump range were discussed.

12 The effects of the method repeatability, sample mass, standard titrate solution and enviroment temperature on the uncertainty of PTA acid value determined with titrimetry were assessed and discussed.