Table 3.Composition of Trimming Stock Pulps Contd.

Sample No. Ratio of pulp solids to filtrate solids Insoluble solids in total solids Sugar in solids of liquor Acid in solids of liquor Ratio of acid to sugar
_Per cent_ _Per cent_ _Per cent_
1470 1.241 ... 53.5 7.6 7.0
1471 1.233 ... 53.2 7.7 6.9
1470-1 1.203 ... ... ... ...
1470-2 1.203 ... ... ... ...
1470-3 1.201 ... ... ... ...
1470-4 1.197 ... ... ... ...
1471-1 1.184 ... ... ... ...
1471-2 1.184 ... ... ... ...
1471-3 1.218 ... ... ... ...
1471-4 1.203 ... ... ... ...
1572 1.109 ... ... ... ...
1573 1.117 12.8 ... ... ...
1574 1.109 11.4 ... ... ...
1575 1.175 13.3 ... ... ...
1662(b) 1.042 3.7 ... ... ...
1664(c) 1.040 4.7 ... ... ...
1665 1.123 14.3 ... ... ...
701 1.140 14.7 54.8 7.0 7.8
703(d) 1.022 2.4 55.9 7.0 8.0
705 1.220 18.6 50.4 6.2 8.0
706 1.145 11.7 48.3 6.3 7.6

(a) Determined by drying in vacuo at 70° C.
(b) Unconcentrated tomato juice from peeling table.
(c) No. 1662 concentrated.
(d) Clear liquor separated from unconcentrated pulp on standing.
(e) Expressed as invert.

Table 4.Comparison of Methods for the Determination and Calculation of
Solids in Whole Tomato Pulp

Sample No. Solids in liquor from filtered pulp
By drying
_in vacuo_
at 70° C.
Calculated from--
Immersion
refractometer
reading
Specific gravity(1) Specific gravity(2)
_Per cent_ _Per cent_ _Per cent_ _Per cent_
1290 5.24 5.31 5.35 5.35
1291 5.71 5.67 5.78 5.80
1292 4.88 4.87 4.85 4.85
1293 6.28 6.21 6.33 6.35
1294 5.82 5.79 5.87 5.89
1295 7.69 7.67 7.82 7.82
1296 8.05 7.88 ... ...
1297 10.27 10.27 10.25 10.26
1299 9.09 9.06 9.05 9.06
1300 6.88 6.91 6.98 6.99
1301 6.68 6.59 ... ...
1302 6.61 6.64 6.73 6.74
1303 7.29 7.34 7.42 7.43
1304 6.20 6.16 6.30 6.30
1305 7.98 7.98 ... ...
1306 8.01 8.05 ... ...
1307 6.97 6.96 7.08 7.08
1481 9.64 9.67 9.68 9.68
1482 9.86 9.81 9.70 9.71
1483 10.19 10.21 10.15 10.14
1484 9.23 9.15 9.10 9.11
1485 7.73 7.64 7.63 7.64
1479 8.96 9.03 8.87 8.88
1486 3.76 ... 3.62 3.63
1491 4.40 4.44 4.30 4.32
1496 7.31 7.39 7.30 7.31
1515 7.61 7.70 7.60 7.61
1529 4.54 4.52 4.47 4.49
1530 5.42 5.32 5.30 5.31
1531 6.27 6.25 6.27 6.28
1325 6.99 7.13 ... ...

Table 4.Comparison of Methods for the Determination and Calculation of
Solids in Whole Tomato Pulp Contd.

Sample No. Solids in whole pulp
By drying
_in vacuo_
at 70° C.
Calculated from
immersion
refractometer
reading
Calculated from specific gravity of--
Filtered liquor[3] Whole pulp Filtered liquor[4)
_Per cent_ _Per cent_ _Per cent_ _Per cent_ _Per cent_
1290 5.94 5.95 6.00 5.97 5.99
1291 6.54 6.36 6.48 6.47 6.50
1292 5.50 5.47 5.44 5.52 5.43
1293 7.02 6.96 7.10 6.98 7.11
1294 6.48 6.49 6.58 6.45 6.60
1295 8.67 8.59 8.77 8.63 8.76
1296 9.00 8.83 ... 9.11 ...
1297 11.20 11.50 11.47 11.20 11.49
1299 10.07 10.15 10.14 10.02 10.15
1300 7.70 7.75 7.82 7.68 7.83
1301 7.36 7.38 ... 7.43 ...
1302 7.45 7.44 7.54 7.40 7.55
1303 8.17 8.23 8.33 8.12 8.32
1304 6.88 6.90 7.06 6.95 7.06
1305 9.03 8.94 ... 8.88 ...
1306 8.95 9.02 ... 8.86 ...
1307 7.86 7.81 7.93 7.83 7.93
1481 10.82 10.83 10.84 10.80 10.84
1482 10.83 10.98 10.86 10.70 10.88
1483 11.21 11.43 11.36 11.17 11.36
1484 10.27 10.25 10.19 10.17 10.20
1485 8.55 8.56 8.55 8.30 8.56
1479 10.00 10.10 9.94 9.88 9.85
1486 4.34 ... 4.05 3.90 4.07
1491 4.97 4.97 4.82 4.62 4.84
1496 8.27 8.28 8.18 8.15 8.29
1515 8.56 8.63 8.52 8.40 8.52
1529 5.11 5.06 5.01 4.90 5.03
1530 6.21 5.97 5.94 5.97 5.95
1531 7.17 7.01 7.04 6.92 7.03
1325 7.86 7.99 ... 7.81 ...

(1) From formula on page 30.
(2) The solution factor of O’Sullivan (J. Chem. Soc., 1876, p. 129) was employed with slight
modification. The formula employed was 1000(d - 1000) / 4.35 = per cent solids. In this formula
d = specific gravity of solution at 20° C.
(3) From formula on page 31.
(4) For these figures the formula of footnote 2 was employed and the results multiplied by 1.12

Table 5.—Tomato Pulp and Filtered Liquor

Whole pulp Filtrate from pulp
Solids by drying Specific
gravity
at 20° C.
Solids by drying Immersion
refract-
ometer
reading
at 17.5° C.
Specific
gravity
at 20° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_Per cent__Per cent_ _Per cent__Per cent_
3.42 3.15 1.0150 3.05 2.71 26.9 1.0133
3.47 3.20 1.0152 3.10 2.75 27.1 1.0136
3.53 3.25 1.0155 3.15 2.80 27.3 1.0138
3.58 3.30 1.0157 3.20 2.85 27.5 1.0140
3.64 3.35 1.0159 3.25 2.89 27.7 1.0142
3.70 3.41 1.0161 3.30 2.93 27.9 1.0144
3.76 3.46 1.0163 3.35 2.97 28.1 1.0146
3.81 3.51 1.0166 3.40 3.02 28.3 1.0149
3.87 3.56 1.0168 3.45 3.07 28.6 1.0151
3.92 3.61 1.0170 3.50 3.11 28.8 1.0153
3.98 3.67 1.0172 3.55 3.15 29.0 1.0155
4.03 3.72 1.0174 3.60 3.20 29.2 1.0157
4.09 3.77 1.0177 3.65 3.24 29.4 1.0160
4.15 3.82 1.0179 3.70 3.28 29.6 1.0162
4.20 3.87 1.0181 3.75 3.33 29.8 1.0164
4.26 3.93 1.0183 3.80 3.38 30.0 1.0166
4.31 3.98 1.0185 3.85 3.42 30.3 1.0168
4.37 4.03 1.0188 3.90 3.46 30.5 1.0170
4.43 4.08 1.0190 3.95 3.51 30.7 1.0173
4.48 4.13 1.0192 4.00 3.55 30.9 1.0175
4 54 4.18 1.0194 4.05 3.60 31.1 1.0177
4.59 4.23 1.0197 4.10 3.64 31.3 1.0179
4.65 4.28 1.0199 4.15 3.69 31.5 1.0181
4.71 4.33 1.0201 4.20 3.73 31.7 1.0183
4.76 4.38 1.0203 4.25 3.78 31.9 1.0185
4.82 4.44 1.0205 4.30 3.82 32.1 1.0188
4.87 4.49 1.0208 4.35 3.86 32.3 1.0190
4.93 4.54 1.0210 4.40 3.91 32.5 1.0192
4.99 4.59 1.0212 4.45 3.95 32.7 1.0194
5.04 4.64 1.0215 4.50 4.00 32.9 1.0196

Table 5.Tomato Pulp and Filtered Liquor—Continued

Whole pulp Filtrate from pulp
Solids by drying Specific
gravity
at 20° C.
Solids by drying Immersion
refract-
ometer
reading
at 17.5° C.
Specific
gravity
at 20° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_Per cent__Per cent_ _Per cent__Per cent_
5.10 4.70 1.0217 4.55 4.04 33.1 1.0198
5.16 4.75 1.0219 4.60 4.09 33.3 1.0200
5.21 4.80 1.0222 4.65 4.13 33.6 1.0203
5.27 4.85 1.0224 4.70 4.18 33.8 1.0205
5.33 4.90 1.0226 4.75 4.22 34.0 1.0207
5.38 4.96 1.0228 4.80 4.26 34.2 1.0209
5.44 5.01 1.0230 4.85 4.31 34.4 1.0211
5.49 5.06 1.0233 4.90 4.36 34.6 1.0213
5.55 5.11 1.0235 4.95 4.40 34.8 1.0216
5.60 5.16 1.0237 5.00 4.44 35.0 1.0218
5.66 5.21 1.0240 5.05 4.49 35.2 1.0220
5.72 5.26 1.0242 5.10 4.53 35.4 1.0223
5.77 5.31 1.0244 5.15 4.58 35.6 1.0225
5.83 5.36 1.0247 5.20 4.62 35.8 1.0227
5.88 5.41 1.0249 5.25 4.66 36.0 1.0229
5.94 5.47 1.0251 5.30 4.71 36.2 1.0231
6.00 5.52 1.0253 5.35 4.75 36.4 1.1333
6.05 5.57 1.0256 5.40 4.80 36.6 1.0235
6.11 5.62 1.0258 5.45 4.84 36.8 1.0238
6.16 5.67 1.0260 5.50 4.89 37.1 1.0240
6.22 5.73 1.0263 5.55 4.93 37.3 1.0242
6.28 5.78 1.0265 5.60 4.98 37.5 1.0244
6.33 5.83 1.0267 5.65 5.02 37.7 1.0246
6.39 5.88 1.0270 5.70 5.06 37.9 1.0249
6.45 5.93 1.0272 5.75 5.11 38.1 1.0251
6.50 5.99 1.0274 5.80 5.15 38.3 1.0253
6.56 6.04 1.0276 5.85 5.20 38.5 1.0255
6.61 6.09 1.0279 5.90 5.24 38.7 1.0257
6.67 6.14 1.0281 5.95 5.29 38.9 1.0259
6.72 6.19 1.0283 6.00 5.33 39.1 1.0261

Table 5.Tomato Pulp and Filtered Liquor—Continued

Whole pulp Filtrate from pulp
Solids by drying Specific
gravity
at 20° C.
Solids by drying Immersion
refract-
ometer
reading
at 17.5° C.
Specific
gravity
at 20° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_Per cent__Per cent_ _Per cent__Per cent_
6.78 6.24 1.0285 6.05 5.38 39.3 1.0263
6.84 6.29 1.0288 6.10 5.42 39.5 1.0266
6.89 6.35 1.0290 6.15 5.46 39.7 1.0268
6.95 6.41 1.0292 6.20 5.51 39.9 1.0270
7.01 6.46 1.0294 6.25 5.56 40.1 1.0272
7.06 6.51 1.0297 6.30 5.60 40.3 1.0274
7.12 6.56 1.0299 6.35 5.64 40.6 1.0277
7.17 6.61 1.0301 6.40 5.69 40.8 1.0279
7.23 6.66 1.0304 6.45 5.73 41.0 1.0281
7.28 6.71 1.0306 6.50 5.78 41.2 1.0283
7.34 6.76 1.0308 6.55 5.82 41.4 1.0285
7.40 6.82 1.0310 6.60 5.86 41.6 1.0287
7.45 6.87 1.0313 6.65 5.91 41.8 1.0290
7.51 6.92 1.0315 6.70 5.95 42.0 1.0292
7.56 6.97 1.0317 6.75 6.00 42.2 1.0294
7.62 7.02 1.0320 6.80 6.04 42.4 1.0296
7.68 7.08 1.0322 6.85 6.09 42.6 1.0298
7.74 7.13 1.0324 6.90 6.14 42.8 1.0300
7.79 7.18 1.0326 6.95 6.18 43.1 1.0303
7.85 7.23 1.0329 7.00 6.22 43.3 1.0305
7.90 7.28 1.0331 7.05 6.26 43.5 1.0307
7.96 7.33 1.0333 7.10 6.31 43.7 1.0309
8.02 7.38 1.0336 7.15 6.36 43.9 1.0311
8.07 7.43 1.0338 7.20 6.40 44.1 1.0313
8.12 7.48 1.0340 7.25 6.44 44.3 1.0315
8.18 7.54 1.0342 7.30 6.48 44.5 1.0318
8.24 7.59 1.0345 7.35 6.53 44.7 1.0320
8.30 7.64 1.0347 7.40 6.58 44.9 1.0322
8.35 7.69 1.0349 7.45 6.62 45.1 1.0324
8.40 7.74 1.0352 7.50 6.66 45.3 1.0326

Table 5.Tomato Pulp and Filtered Liquor—Continued

Whole pulp Filtrate from pulp
Solids by drying Specific
gravity
at 20° C.
Solids by drying Immersion
refract-
ometer
reading
at 17.5° C.
Specific
gravity
at 20° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_Per cent__Per cent_ _Per cent__Per cent_
8.46 7.79 1.0354 7.55 6.71 45.5 1.0328
8.52 7.84 1.0356 7.60 6.76 45.7 1.0331
8.57 7.89 1.0358 7.65 6.80 45.9 1.0333
8.63 7.95 1.0361 7.70 6.84 46.2 1.0335
8.68 8.00 1.0363 7.75 6.89 46.4 1.0337
8.74 8.05 1.0365 7.80 6.93 46.6 1.0339
8.80 8.11 1.0367 7.85 6.98 46.8 1.0341
8.86 8.16 1.0370 7.90 7.02 47.0 1.0344
8.91 8.21 1.0372 7.95 7.07 47.2 1.0346
8.96 8.26 1.0374 8.00 7.11 47.4 1.0348
9.02 8.31 1.0377 8.05 7.16 47.6 1.0350
9.08 8.36 1.0379 8.10 7.20 47.8 1.0352
9.14 8.41 1.0381 8.15 7.24 48.0 1.0354
9.19 8.46 1.0383 8.20 7.28 48.2 1.0357
9.25 8.51 1.0386 8.25 7.33 48.4 1.0359
9.30 8.57 1.0388 8.30 7.38 48.6 1.0361
9.36 8.62 1.0390 8.35 7.42 48.8 1.0363
9.42 8.67 1.0393 8.40 7.46 49.0 1.0366
9.47 8.72 1.0395 8.45 7.51 49.2 1.0368
9.53 8.77 1.0397 8.50 7.55 49.4 1.0370
9.58 8.83 1.0400 8.55 7.60 49.6 1.0372
9.64 8.88 1.0402 8.60 7.64 49.8 1.0374
9.70 8.93 1.0404 8.65 7.68 50.0 1.0376
9.75 8.98 1.0406 8.70 7.73 50.2 1.0379
9.80 9.03 1.0408 8.75 7.78 50.4 1.0381
9.86 9.09 1.0410 8.80 7.82 50.7 1.0383
9.92 9.14 1.0413 8.85 7.86 50.9 1.0385
9.97 9.19 1.0415 8.90 7.91 51.1 1.0387
10.02 9.24 1.0417 8.95 7.95 51.3 1.0389
10.08 9.29 1.0419 9.00 8.00 51.5 1.0392

Table 5.Tomato Pulp and Filtered Liquor—Continued

Whole pulp Filtrate from pulp
Solids by drying Specific
gravity
at 20° C.
Solids by drying Immersion
refract-
ometer
reading
at 17.5° C.
Specific
gravity
at 20° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_Per cent__Per cent_ _Per cent__Per cent_
10.14 9.35 1.0421 9.05 8.05 51.7 1.0394
10.19 9.40 1.0424 9.10 8.09 51.9 1.0396
10.25 9.45 1.0426 9.15 8.13 52.1 1.0398
10.30 9.50 1.0428 9.20 8.18 52.3 1.0400
10.35 9.55 1.0430 9.25 8.22 52.5 1.0402
10.41 9.60 1.0433 9.30 8.27 52.7 1.0404
10.47 9.65 1.0435 9.35 8.31 52.9 1.0406
10.52 9.70 1.0437 9.40 8.35 53.1 1.0409
10.58 9.75 1.0440 9.45 8.40 53.3 1.0411
10.64 9.80 1.0442 9.50 8.45 53.5 1.0413
10.70 9.86 1.0444 9.55 8.49 53.7 1.0415
10.75 9.91 1.0447 9.60 8.53 53.9 1.0417
10.80 9.96 1.0449 9.65 8.58 54.1 1.0419
10.86 10.01 1.0451 9.70 8.62 54.3 1.0422
10.91 10.06 1.0453 9.75 8.67 54.5 1.0424
10.97 10.11 1.0456 9.80 8.71 54.7 1.0426
11.02 10.16 1.0458 9.85 8.75 55.0 1.0428
11.08 10.21 1.0461 9.90 8.80 55.2 1.0430
11.14 10.26 1.0463 9.95 8.85 55.4 1.0433
11.20 10.31 1.0465 10.00 8.89 55.6 1.0435
11.25 10.37 1.0467 10.05 8.93 55.8 1.0437
11.30 10.42 1.0469 10.10 8.98 56.0 1.0439
11.36 10.47 1.0472 10.15 9.02 56.2 1.0441
11.41 10.52 1.0474 10.20 9.07 56.4 1.0444
11.47 10.57 1.0476 10.25 9.11 56.6 1.0446
11.53 10.63 1.0478 10.30 9.15 56.8 1.0448
11.59 10.68 1.0481 10.35 9.20 57.0 1.0450
11.64 10.73 1.0483 10.40 9.25 57.2 1.0452
11.70 10.78 1.0485 10.45 9.29 57.4 1.0454
11.75 10.83 1.0487 10.50 9.33 57.6 1.0457

Table 5.Tomato Pulp and Filtered Liquor—Continued

Whole pulp Filtrate from pulp
Solids by drying Specific
gravity
at 20° C.
Solids by drying Immersion
refract-
ometer
reading
at 17.5° C.
Specific
gravity
at 20° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_Per cent__Per cent_ _Per cent__Per cent_
11.81 10.89 1.0490 10.55 9.38 57.8 1.0459
11.87 10.94 1.0492 10.60 9.42 58.0 1.0461
11.93 10.99 1.0494 10.65 9.47 58.2 1.0463
11.99 11.04 1.0496 10.70 9.51 58.4 1.0465
12.05 11.09 1.0499 10.75 9.55 58.6 1.0467
12.10 11.15 1.0501 10.80 9.60 58.8 1.0469
12.15 11.20 1.0503 10.85 9.65 59.0 1.0471
12.21 11.25 1.0505 10.90 9.70 59.2 1.047
12.26 11.30 1.0508 10.95 9.74 59.4 1.0476
12.32 11.35 1.0510 11.00 9.78 59.6 1.0478
12.37 11.40 1.0512 11.05 9.82 59.9 1.0480
12.43 11.45 1.0515 11.10 9.87 60.1 1.0482
12.49 11.50 1.0517 11.15 9.92 60.3 1.0484
12.55 11.55 1.0519 11.20 9.96 60.5 1.0487
12.60 11.60 1.0522 11.25 10.00 60.7 1.0489
12.65 11.66 1.0524 11.30 10.04 60.9 1.0491
12.71 11.71 1.0526 11.35 10.09 61.1 1.0493
12.77 11.76 1.0528 11.40 10.13 61.3 1.0495
12.83 11.81 1.0531 11.45 10.18 61.5 1.0498
12.88 11.86 1.0533 11.50 10.22 61.7 1.0500
12.94 11.92 1.0535 11.55 10.27 61.9 1.0502
12.99 11.97 1.0538 11.60 10.31 62.1 1.0504
13.05 12.02 1.0540 11.65 10.35 62.3 1.0506
13.10 12.07 1.0542 11.70 10.40 62.5 1.0508
13.16 12.12 1.0544 11.75 10.45 62.7 1.0511
13.22 12.18 1.0547 11.80 10.49 62.9 1.0513
13.27 12.23 1.0549 11.85 10.53 63.1 1.0515
13.32 12.28 1.0551 11.90 10.58 63.3 1.0517
13.38 12.33 1.0554 11.95 10.63 63.5 1.0519
13.44 12.38 1.0556 12.00 10.67 63.7 1.0521

Table 5.Tomato Pulp and Filtered Liquor—Continued

Whole pulp Filtrate from pulp
Solids by drying Specific
gravity
at 20° C.
Solids by drying Immersion
refract-
ometer
reading
at 17.5° C.
Specific
gravity
at 20° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_In vacuo_
at 70° C.
At atmospheric
pressure
100° C.
_Per cent__Per cent_ _Per cent__Per cent_
13.50 12.44 1.0558 12.05 10.71 64.0 1.0523
13.55 12.49 1.0560 12.10 10.75 64.2 1.0525
13.60 12.54 1.0562 12.15 10.80 64.4 1.0527
13.66 12.59 1.0565 12.20 10.84 64.6 1.0529
13.72 12.64 1.0567 12.25 10.89 64.8 1.0531
13.78 12.70 1.0569 12.30 10.94 65.0 1.0533
13.83 12.75 1.0572 12.35 10.98 65.2 1.0535
13.89 12.80 1.0574 12.40 11.02 65.4 1.0537
13.95 12.85 1.0576 12.45 11.07 65.6 1.0539
14.01 12.90 1.0579 12.50 11.11 65.8 1.0541

The per cent of solids in the filtered liquor obtained by drying in vacuo, multiplied by 1.12, gives the per cent of solids in the original pulp obtained by drying in vacuo. This relationship is shown in Table 2, in the column headed “Ratio of pulp solids to filtrate solids,” and also in Table 5.

Of the 33 samples shown in Table 2, the result obtained by multiplying the per cent of solids in the filtrate (obtained by drying in vacuo) by the factor 1.12 is very nearly identical with the per cent of solids in the pulp (obtained by drying in vacuo). In 22 of the 33 samples the difference between these two figures is less than 0.1 per cent. In 17 samples it is less than 0.06 per cent, and in 13 samples it is less than 0.05 per cent. In only two samples does it exceed 0.17 per cent.

(b) By calculation from the specific gravity of the filtrate.—The specific gravity of the filtered liquor may be determined by means of an ordinary pycnometer. From the specific gravity at 20° C., the per cent of solids in the filtrate as determined by drying in vacuo at 70° C. may be obtained from Table 5. It may also be calculated by the following formula, which was derived from the same table: