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# Bubble Points and Dew Points

This web page allows one to select a pure component or a mixture of components and calculate dew points and bubble points. This page uses the Peng-Robinson equation of state to predict the properties of these mixtures. The calculations are much faster and sometimes more accurate for a pure component than for mixtures.

These calculations are made using the most recent experimental version of the thermodynamics library that is included in the CANARY by Quest Consequence Modeling Software available from Quest Consultants Inc. The results should be considered a demonstration only and not used for design purposes.

All of these calculations use the Peng-Robinson equation of state. The calculations are based on predictions of vapor/liquid equilibrium. If the vapor/liquid equilibrium cannot exist for the mixture, temperature, and pressure that you select, then the answers may not be good. If components freeze or if components separate into more than one liquid phase or if polar chemicals are mixed with water, the answers are not likely to be good. The answers are usually excellent at high temperatures and low pressures.

To try it out, create an input mixture using the form below and hit the submit button to start the calculations.

### Initial Conditions

Input a temperature in degrees Kelvin and a pressure in kilopascals absolute (not gauge).

Temperature: K

Pressure: kPaa

### Mixture

Select the components for your mixture from the list below and enter the integer identifier and enter the mole fraction of each component. If the mole fractions do not sum to one when you are done, they will be re-normalized for you so long as they are all greater than zero. If a component identifier is entered, then the corresponding mole fraction must also be entered.

Component ID 01:   Mole fraction:
Component ID 02:   Mole fraction:
Component ID 03:   Mole fraction:
Component ID 04:   Mole fraction:
Component ID 05:   Mole fraction:
Component ID 06:   Mole fraction:
Component ID 07:   Mole fraction:
Component ID 08:   Mole fraction:
Component ID 09:   Mole fraction:
Component ID 10:   Mole fraction:

## Component list

```   1 = Methane, CH4
2 = Ethane, C2H6
3 = Propane, C3H8
4 = Isobutane, C4H10
5 = n-Butane, C4H10
6 = Isopentane, C5H12
7 = n-Pentane, C5H12
8 = n-Hexane, C6H14
9 = n-Heptane, C7H16
10 = n-Octane, C8H18
11 = n-Nonane, C9H20
12 = n-Decane, C10H22
13 = n-Undecane, C11H24
14 = Ethylene, C2H4
15 = Propylene, C3H6
16 = Nitrogen, N2
17 = Carbon Dioxide, CO2
18 = Hydrogen Sulfide, H2S
19 = PHC-200, C15H24
20 = PHC-300, C22H38
21 = PHC-400, C28H42
22 = PHC-500, C38H61
23 = PHC-600, C44H70
24 = PHC-700, C51H82
26 = Hydrogen Chloride, HCl
27 = Chlorine, Cl2
28 = Oxygen, O2
31 = Dodecane, C12H26
32 = Tridecane, C13H28
40 = Methyl Mercaptan, CH4S
41 = Ethyl Mercaptan, C2H6S
42 = Methyl Amine, CH5N (mono)
43 = Carbon Monoxide, CO
44 = Sulfur Dioxide, O2S
46 = Sulfur Trioxide, O3S
47 = Sulfuric Acid, H2SO4
50 = Hydrogen Fluoride, HF
51 = Hydrogen(equilibrium), H2
52 = Water, H2O
53 = Ammonia, H3N
55 = Helium, He
56 = Neon, Ne
57 = Argon, Ar
58 = Krypton, Kr
59 = Xenon, Xe
60 = Difluoromethane, CH2F2
61 = Dichloromethane, CH2Cl2
62 = Chlorodifluoromethane, CHClF2
63 = Dichloromonofluoromethane, CHCl2F
64 = Dichlorodifluoromethane, CCl2F2
65 = Trichlorofluoromethane, CCl3F
66 = 1,1-Difluoroethane, C2H4F2
67 = 1,1-Dichloroethane, C2H4Cl2
68 = 1,2-Dichloroethane, C2H4Cl2
69 = Trichloroethylene, C2HCl3
70 = Tetrafluoroethylene, C2F4
71 = Perfluoroethane, C2F6
72 = Chlorodifluoroethane, C2H3ClF2
73 = 1,1-Dichlorotetrafluoroethane, C2Cl2F4
74 = 1,2,2-Trichlorotrifluoroethane, C2Cl3F3
75 = 1,2 Dichloropropane, C3H6Cl2
76 = Tetrachloroethylene, C2Cl4
80 = Fluorine, F2
81 = Bromine, Br2
82 = Ozone, O3
83 = Boron Trifluoride, BF3
84 = Boron Trichloride, BCl3
85 = Carbon Disulfide, CS2
86 = Hydrazine, H4N2
87 = Nitric Oxide, NO
88 = Nitrous Oxide, N2O
89 = Nitrogen Dioxide, NO2
90 = Nitric Acid, HNO3
91 = Nitrogen Trifluoride, F3N
92 = Hydrogen Bromide, HBr
94 = Titanium Tetrachloride, TiCl4
100 = Carbon Oxysulfide, COS
101 = Carbon Tetrafluoride, CF4
102 = Carbon Tetrachloride, CCl4
103 = Hydrogen Cyanide, CHN
104 = Fluoroform, CHF3
105 = Chloroform, CHCl3
106 = Phosgene, CCl2O
107 = Formaldehyde, CH2O
108 = Methyl Fluoride, CH3F
109 = Methyl Chloride, CH3Cl
110 = Methyl Bromide, CH3Br
111 = Methyl Iodide, CH3I
112 = Nitromethane, CH3NO2
113 = Methanol, CH4O
114 = Methyl Hydrazine, CH6N2
120 = Cyanogen, C2N2
121 = Trifluoroacetonitrile, C2F3N
122 = Acetylene, C2H2
123 = Ketene, C2H2O
124 = Vinylidene Fluoride, C2H2F2
125 = Vinyl Fluoride, C2H3F
126 = Acetonitrile, C2H3N
127 = Methyl Isocyanate, C2H3NO
128 = Vinyl Chloride, C2H3Cl
129 = Acetyl Chloride, C2H3ClO
130 = Acetaldehyde, C2H4O
131 = Ethylene Oxide, C2H4O
132 = Acetic Acid, C2H4O2
133 = Methyl Formate, C2H4O2
134 = Ethyl Bromide, C2H5Br
135 = Ethyl Chloride, C2H5Cl
136 = Ethyl Fluoride, C2H5F
137 = Dimethyl Ether, C2H6O
138 = Ethanol, C2H6O
139 = Methyl Ether, C2H6O
140 = Dimethyl Sulfide, C2H6S
141 = Dimethylamine, C2H7N
142 = Ethyl Amine, C2H7N
143 = Ethylenediamine, C2H8N2
150 = Acrylonitrile, C3H3N
151 = Propyne, C3H4
153 = Acrolein,  C3H4O
154 = Acrylic Acid, C3H4O2
155 = Vinyl Formate, C3H4O2
156 = Propionitrile, C3H5N
157 = Allyl Chloride, C3H5Cl
158 = 1,2,3-Trichloropropane, C3H5Cl3
159 = Epichlorohydrin, C3H5ClO
160 = Cyclopropane, C3H6
161 = Acetone, C3H6O
162 = Propylene Oxide, C3H6O
163 = Allyl Alcohol, C3H6O
164 = Vinyl Methyl Ether, C3H6O
165 = Ethyl Formate, C3H6O2
166 = Methyl Acetate, C3H6O2
167 = Propionic Acid, C3H6O2
168 = Propyl Chloride, C3H7Cl
169 = Isopropyl Chloride, C3H7Cl
170 = 1-Propanol, C3H8O
171 = Isopropyl Alcohol, C3H8O
172 = Methyl Ethyl Ether, C3H8O
173 = Isopropyl Amine, C3H9N
174 = n-Propyl Amine, C3H9N
175 = Trimethyl Amine, C3H9N
180 = Vinyl Acetylene, C4H4
181 = Furan, C4H4O
182 = Thiophene, C4H4S
183 = Allyl Cyanide, C4H5N
184 = Ethyl Acetylene (1-Butyne), C4H6
185 = 2-Butyne, C4H6
188 = trans-Crotonaldehyde, C4H6O
189 = Vinyl Acetate Monomer, C4H6O2
190 = Methyl Acrylate, C4H6O2
191 = 1-Butene, C4H8
192 = trans-2-Butene, C4H8
193 = cis-2-Butene, C4H8
194 = Cyclobutane, C4H8
195 = Isobutylene, C4H8
196 = Isobutyraldehyde, C4H8O
197 = Methyl Ethyl Ketone, C4H8O
198 = Tetrahydrofuran, C4H8O
199 = Vinyl Ethyl Ether, C4H8O
200 = 1,4-Dioxane, C4H8O2
201 = n-Butyric Acid, C4H8O2
202 = Isobutyric Acid, C4H8O2
203 = Methyl Propionate, C4H8O2
204 = Ethyl Acetate, C4H8O2
205 = Sulfolane, C4H8O2S
206 = 1-Chlorobutane, C4H9Cl
207 = 2-Chlorobutane, C4H9Cl
208 = tert-Butyl Chloride, C4H9Cl
209 = Pyrrolidine, C4H9N
210 = Morpholine, C4H9NO
211 = 2-Butanol, C4H10O
212 = n-Butanol, C4H10O
213 = Isobutanol, C4H10O
214 = tert-Butanol, C4H10O
216 = Diethyl Ether, C4H10O
217 = 1,2-Dimethoxyethane, C4H10O2
218 = Diethyl Sulfide, C4H10S
219 = Diethyl Amine, C4H11N
230 = Pyridine, C5H5N
237 = Isoprene, C5H8
238 = 1-Pentyne, C5H8
239 = Cyclopentanone, C5H8O
240 = Ethyl Acrylate, C5H8O2
241 = 1-Pentene, C5H10
242 = cis-2-Pentene, C5H10
243 = trans-2-Pentene, C5H10
244 = Cyclopentane, C5H10
245 = 3-Methyl-1-Butene, C5H10
246 = 2-Methyl-1-Butene, C5H10
247 = Diethyl Ketone, C5H10O
248 = Methyl Isopropyl Ketone, C5H10O
249 = Methyl n-Propyl Ketone, C5H10O
250 = Ethyl Propionate, C5H10O2
251 = Isobutyl Formate, C5H10O2
252 = n-Propyl Acetate, C5H10O2
253 = Piperidine, C5H11N
254 = 2,2-Dimethylpropane (Neopentane), C5H12
255 = MTBE,C5H12O
261 = o-Dichlorobenzene, C6H4Cl2
262 = Fluorobenzene, C6H5F
263 = Chlorobenzene, C6H5Cl
264 = Bromobenzene, C6H5Br
265 = Iodobenzene, C6H5I
266 = Benzene, C6H6
267 = Phenol, C6H6O
268 = Aniline, C6H7N
269 = 4-Methylpyridine, C6H7N
270 = 1-Hexene, C6H12
271 = 2,3-Dimethyl-1-Butene, C6H12
272 = Cyclohexane, C6H12
273 = Methylcyclopentane, C6H12
274 = trans-2-Hexene, C6H12
275 = trans-3-Hexene, C6H12
276 = Diisopropyl Ether, C6H14O
277 = Ethyl Butyl Ether, C6H14O
278 = 2-Methyl-2-Pentene, C6H12
281 = Toluene, C7H8
282 = Styrene Monomer, C8H8
283 = Ethylbenzene, C8H10
284 = Xylene, ortho  C8H10
285 = Xylene, meta  C8H10
286 = Xylene, para  C8H10
287 = 1-Octene, C8H16
288 = 2,2,3-Trimethylpentane, C8H18
289 = 3-Methylheptane, C8H18
290 = 1-Octanol, C8H18O
291 = Naphthalene, C10H8
292 = 1-Decene, C10H20
293 = 1-Methylnaphthalene, C11H10
294 = 2-Methylnaphthalene, C11H10
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