NaOH used: TA chart for .1N X 0.15 (by Tom
Mitchell)
Titrate with a .1N NaOH and a 5 ml juice sample in
50-100 ml distilled water
(hot water is optional) with 5 drops of Phenolphthalein
To calculate the acid reading (tartaric) TA, multiply the amount of NaOH used by
0.15
|
|
|
|
|
|
|
|
|
|
|
|
NaOH
|
TA
|
|
NaOH
|
TA
|
|
NaOH
|
TA
|
|
NaOH
|
TA
|
|
2.0
|
0.300
|
|
5.5
|
0.825
|
|
9.0
|
1.350
|
|
12.5
|
1.875
|
|
2.1
|
0.315
|
|
5.6
|
0.840
|
|
9.1
|
1.365
|
|
12.6
|
1.890
|
|
2.2
|
0.330
|
|
5.7
|
0.855
|
|
9.2
|
1.380
|
|
12.7
|
1.905
|
|
2.3
|
0.345
|
|
5.8
|
0.870
|
|
9.3
|
1.395
|
|
12.8
|
1.920
|
|
2.4
|
0.360
|
|
5.9
|
0.885
|
|
9.4
|
1.410
|
|
12.9
|
1.935
|
|
2.5
|
0.375
|
|
6.0
|
0.900
|
|
9.5
|
1.425
|
|
13.0
|
1.950
|
|
2.6
|
0.390
|
|
6.1
|
0.915
|
|
9.6
|
1.440
|
|
13.1
|
1.965
|
|
2.7
|
0.405
|
|
6.2
|
0.930
|
|
9.7
|
1.455
|
|
13.2
|
1.980
|
|
2.8
|
0.420
|
|
6.3
|
0.945
|
|
9.8
|
1.470
|
|
13.3
|
1.995
|
|
2.9
|
0.435
|
|
6.4
|
0.960
|
|
9.9
|
1.485
|
|
13.4
|
2.010
|
|
3.0
|
0.450
|
|
6.5
|
0.975
|
|
10.0
|
1.500
|
|
13.5
|
2.025
|
|
3.1
|
0.465
|
|
6.6
|
0.990
|
|
10.1
|
1.515
|
|
13.6
|
2.040
|
|
3.2
|
0.480
|
|
6.7
|
1.005
|
|
10.2
|
1.530
|
|
13.7
|
2.055
|
|
3.3
|
0.495
|
|
6.8
|
1.020
|
|
10.3
|
1.545
|
|
13.8
|
2.070
|
|
3.4
|
0.510
|
|
6.9
|
1.035
|
|
10.4
|
1.560
|
|
13.9
|
2.085
|
|
3.5
|
0.525
|
|
7.0
|
1.050
|
|
10.5
|
1.575
|
|
14.0
|
2.100
|
|
3.6
|
0.540
|
|
7.1
|
1.065
|
|
10.6
|
1.590
|
|
14.1
|
2.115
|
|
3.7
|
0.555
|
|
7.2
|
1.080
|
|
10.7
|
1.605
|
|
14.2
|
2.130
|
|
3.8
|
0.570
|
|
7.3
|
1.095
|
|
10.8
|
1.620
|
|
14.3
|
2.145
|
|
3.9
|
0.585
|
|
7.4
|
1.110
|
|
10.9
|
1.635
|
|
14.4
|
2.160
|
|
4.0
|
0.600
|
|
7.5
|
1.125
|
|
11.0
|
1.650
|
|
14.5
|
2.175
|
|
4.1
|
0.615
|
|
7.6
|
1.140
|
|
11.1
|
1.665
|
|
14.6
|
2.190
|
|
4.2
|
0.630
|
|
7.7
|
1.155
|
|
11.2
|
1.680
|
|
14.7
|
2.205
|
|
4.3
|
0.645
|
|
7.8
|
1.170
|
|
11.3
|
1.695
|
|
14.8
|
2.220
|
|
4.4
|
0.660
|
|
7.9
|
1.185
|
|
11.4
|
1.710
|
|
14.9
|
2.235
|
|
4.5
|
0.675
|
|
8.0
|
1.200
|
|
11.5
|
1.725
|
|
15.0
|
2.250
|
|
4.6
|
0.690
|
|
8.1
|
1.215
|
|
11.6
|
1.740
|
|
15.1
|
2.265
|
|
4.7
|
0.705
|
|
8.2
|
1.230
|
|
11.7
|
1.755
|
|
15.2
|
2.280
|
|
4.8
|
0.720
|
|
8.3
|
1.245
|
|
11.8
|
1.770
|
|
15.3
|
2.295
|
|
4.9
|
0.735
|
|
8.4
|
1.260
|
|
11.9
|
1.785
|
|
15.4
|
2.310
|
|
5.0
|
0.750
|
|
8.5
|
1.275
|
|
12.0
|
1.800
|
|
15.5
|
2.325
|
|
5.1
|
0.765
|
|
8.6
|
1.290
|
|
12.1
|
1.815
|
|
15.6
|
2.340
|
|
5.2
|
0.780
|
|
8.7
|
1.305
|
|
12.2
|
1.830
|
|
15.7
|
2.355
|
|
5.3
|
0.795
|
|
8.8
|
1.320
|
|
12.3
|
1.845
|
|
15.8
|
2.370
|
|
5.4
|
0.810
|
|
8.9
|
1.335
|
|
12.4
|
1.860
|
|
15.9
|
2.385
|
|