Related Resources: physics

### Alcohol Dilution Reduction Table

Engineering Physics

Use this table to determine the correct dilution of Alcohol to lower strengths.

 Alcohol Dilution Reduction Table [Dilution of Alcohol to Lower Strengths] Desired strength Strengths to be Reduced (% v/v) % v/v 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 45% 40% 35% 30% 25% 20% 15% Volume Units of Pure Water to Add to Each 100 Volume Units of Alcohol 90% 6.41 - - - - - - - - - - - - - - - - 85% 13.33 6.58 - - - - - - - - - - - - - - - 80% 20.9 13.8 6.83 - - - - - - - - - - - - - - 75% 29.5 21.9 14.5 7.2 - - - - - - - - - - - - - 70% 39.1 31.0 23.1 15.3 7.64 - - - - - - - - - - - - 65% 50.2 41.5 33.0 24.6 16.4 8.15 - - - - - - - - - - - 60% 63.0 53.6 44.2 35.4 26.5 17.6 8.76 - - - - - - - - - - 55% 78.0 67.8 57.9 48.0 38.3 28.6 19.0 9.5 - - - - - - - - - 50% 95.9 84.8 73.9 63.1 52.4 41.7 31.3 20.5 10.4 - - - - - - - - 45% 118 105 93.3 81.3 69.5 57.8 46.0 34.5 22.9 11.4 - - - - - - - 40% 144 131 117 104 90.8 77.6 64.5 51.4 38.5 25.6 12.7 - - - - - - 35% 179 163 148 133 118 103 88.0 73.0 58.3 43.6 29.0 14.4 - - - - - 30% 224 206 189 171 154 136 119 102 85.0 67.5 50.5 33.5 16.7 - - - - 25% 287 266 245 224 204 183 162 142 121 101 80.4 60.2 40.0 20.0 - - - 20% 382 356 330 304 278 253 227 201 176 150.6 125.2 100 75.0 49.9 24.9 - - 15% 540 505 471 437 403 369 335 301 267 234 200 166.4 133 96.7 66.4 33.2 - 10% 855.6 804 753 703 652.2 602 551 500.6 450.2 400 350 300 249.4 199.4 150 100 50 Alcohol water mixtures are non-volume additive mixtures. This table may be used to determine the volume of water needed to reduce known volume strengths of alcohol solutions (such as distilled spirits or sensory evaluation or the cutting of spirits to desired ﬁnal strengths) to desired volume/volume strengths. Example calculation of DATA: [Requires "RESPECTIVE VOLUMES OF ALCOHOL AND WATER AND THE SPECIFIC GRAVITY IN BOTH AIR AND VACUUM OF SPIRITUOUS LIQUOR" - or its equivalent - from the US Gov. Gauging Manual: “Respective Volumes of Alcohol and Water”. In reducing 95% (vol.) to 85% (vol) ﬁrst convert to Proof (US), i.e. x Vol. by 2. Then see US Gauging Manual - Table 6. 190 Proof is 95% (vol.) Ethanol and 6.18% (vol.) H20. 170 Proof is 85% (vol.) Ethanol and 17.46% (vol.) H20. Ratio: 95/85 = 1.1176471*--then-- 17.46% (vol. water in 85% vol/vol alcohol water mixture) x 1.1176471* = 19.514118* Next: 19.514118* - 6.18 = 13.33; Dilution is now 100 Units [e.g., gallons, mL. etc.] of the initial alcohol solution to 13.33 Units of water. *[Signiﬁcant ﬁgures not accounted for.] Prepared by Gary Spedding

© Copyright 2000 - 2018, by Engineers Edge, LLC www.engineersedge.com
All rights reserved
Disclaimer | Feedback | Advertising | Contact

Date/Time:

User Reviews/Comments:

There are currently no comments available.

 Add a Comment (you must be logged in to post comment Register): Name: Email: (Optional) Comment: