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Conversion Tables
Conversion Tables

Partical Size

Approximate Millimeter Mesh Size Approximate Micron size
0.01 850 10
0.02 635 20
0.038 400 38
0.045 325 45
0.053 270 53
0.063 230 63
0.075 200 75
0.09 170 90
0.106 140 106
0.125 120 125
0.15 100 150
0.18 80 180
0.212 70 212
0.25 60 250
0.3 50 300
0.355 45 355
0.425 40 425
0.5 35 500
0.6 30 600
0.71 25 710
0.85 20 850
1 18 1000
1,180 16 1180
1,400 14 1400
1,700 12 1700
2,000 10 2000
2,360 8 2360
2,800 7 2800
3,350 6 3350
4,000 5 4000
4,750 4 4750

Predicted Effect of Pressure

PREDICTED EFFECT OF PRESSURE ON BOILING POINT*
760 mm Hg Temperature in degrees Centigrade
  200 220 240 260 280 300 320 340 360 380 400
0.1 8 20 32 44 56 68 80 92 104 115 127
0.2 17 30 42 54 67 79 91 103 116 128 140
0.4 27 40 53 65 78 91 103 116 129 141 154
0.6 33 40 59 72 85 98 111 124 137 150 163
0.8 38 51 64 77 90 103 116 130 143 156 169
1 41 54 68 81 94 108 121 134 147 161 174
2 53 66 80 94 108 121 135 140 163 176 190
4 65 79 93 108 122 136 151 156 179 193 208
6 72 87 102 116 131 146 160 175 189 204 219
8 78 93 108 123 137 152 167 182 197 212 227
10 83 98 113 128 143 158 173 188 203 218 233
14 90 105 120 136 151 166 182 197 212 228 243
18 95 111 126 142 157 173 188 204 219 235 251
20 97 113 129 144 160 176 191 207 223 238 254
30 106 123 139 155 171 187 203 219 235 251 267
40 113 130 146 162 179 195 211 228 244 260 277
50 119 135 152 168 185 202 218 235 251 268 284
60 123 140 157 174 190 207 224 241 257 274 291
80 131 148 165 182 199 216 233 250 267 284 301
100 137 154 171 189 206 223 241 258 275 293 310
150 148 166 184 201 219 237 255 273 290 308 326
200 156 174 193 211 229 247 265 283 302 320 338
300 169 187 206 225 243 262 281 299 318 337 355
400 178 197 216 235 254 273 292 311 330 350 369
500 185 205 224 244 263 282 302 321 340 360 379
600 192 211 231 251 270 290 310 329 349 368 388
700 197 217 237 257 277 296 316 336 356 376 396
750 200 220 239 259 279 299 319 339 359 379 399
770 200 220 241 261 281 301 321 341 361 381 401
800 202 222 242 262 282 302 322 342 262 382 403

Preparation of Standard Solution

Preparation Of Standard Solution 
  Specific gravity (20°C) Molarity  (M) Quantity required in ml to make 1 liter 1 molar Normally        (N) Quantity required in ml to make 1 liter 1 normal solution
Glacial acetic acid 1.05 17.4 57.5 17.4 57.5
Ammonia 30% 0.89 14.5 69 14.5 69
Ammonia 25% 0.91 13.4 74.6 13.4 74
Hydrochloric acid 36% 1.18 11.7 85.8 11.7 85.8
Hydrochloric acid 40% 1.13 22.6 44.2 22.6 44.2
Hydrochloric acid 48% 1.15 28.9 34.5 28.9 34.5
Nitric acid 70 % 1.42 15.8 63.3 15.8 63.3
Perchloric acid 60 % 1.54 9.2 108.7 9.2 108.7
Perchloric acid 70 % 1.67 11.6 86.2 11.6 86.2
Sulphuric acid 98% 1.84 18 53.1 36 26.2
Phosphoric acid 85% 1.7 15.2 65.8 45.6 21.9

Temperature Conversion Table

Conversion Tables
Temperature Conversion Tables
Known temperature to be converted in centre column.
Centigrade conversion to left. Farenheit to right
Example
-12.2  10  50
therefore 10 ° C = 50 ° F
10 ° F = .-12.2 ° C
1 centigrade or Celsius degree = 1.8 Fahrenheit  degree
Temperature, Kelvin = T°C + 273.15
Temperature, Fahrenheit = 9/5 °C +32
Temperature, centigrade or Celsius = 5/9 (°F-32)

°C Known ° F
-17.8    0   32
-15       5   41
-12.2   10  50
-9.5    15  59
-6.7    20  68
-3.9    25  77
-1.1    30  86
4.4     40  104
10      50  122
15.6    60 140
21.1   70    158
26.7    80   176
32.2    90    194
37.8   100   212
43.3   110   230
48.9   120   248
54.4   130   266
60      140   284
65.6   150   302
71.1   160   320
76.7   170   338
82.2   180   356
87.8    190   374
93.3      200   392
98.9      210   410
104.4     220   428
110        230   446
115.6     240   464
121      250   482
149      300   572
177      350   662
204       400  752

Transmittance Absorbance

% T A.U % T A.U
1 2 51 0.292
2 1.699 52 0.284
3 1.523 53 0.276
4 1.398 54 0.268
5 1.301 55 0.26
6 1.222 56 0.252
7 1.155 57 0.241
8 1.097 58 0.237
9 1.046 59 0.299
10 1 60 0.222
11 0.959 61 0.215
12 0.921 62 0.208
13 0.886 63 0.201
14 0.854 64 0.194
15 0.824 65 0.187
16 0.796 66 0.18
17 0.77 67 0.174
18 0.745 68 0.167
19 0.721 69 0.161
20 0.699 70 0.155
21 0.678 71 0.149
22 0.658 72 0.143
23 0.638 73 0.137
24 0.62 74 0.131
25 0.602 75 0.125
26 0.585 76 0.119
27 0.569 77 0.114
28 0.533 78 0.108
29 0.538 79 0.102
30 0.523 80 0.097
31 0.509 81 0.092
32 0.495 82 0.086
33 0.482 83 0.081
34 0.469 84 0.076
35 0.469 85 0.071
36 0.444 86 0.066
37 0.432 87 0.06
38 0.42 88 0.056
39 0.387 89 0.051
40 0.398 90 0.046
41 0.387 91 0.041
42 0.377 92 0.036
43 0.367 93 0.032
44 0.357 94 0.027
45 0.347 95 0.022
46 0.337 96 0.018
47 0.328 97 0.013
48 0.319 98 0.009
49 0.31 99 0.004
50 0.301 100 0
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