Quick Reference Info: Alcohol/Acids/Temperature/SO2

©Copyright Ben Rotter 2005-2008
www.brsquared.org/wine


Alcohol

SGGravityBrixSugar (lb&oz/US gal.)PA (%)PA (%)
(degrees)(degrees)((SG-1)×220)+1.6lbozas 0.6Br-1as 0.59Br
1.00001.6010.00.9
1.00552.7020.61.6
1.010103.8041.32.2
1.015154.9061.92.9
1.020206.0082.63.5
1.025257.1093.34.2
1.030308.20113.94.8
1.035359.30134.65.5
1.0404010.40155.26.1
1.0454511.5105.96.8
1.0505012.6126.67.4
1.0555513.7147.28.1
1.0606014.8167.98.7
1.0656515.9178.59.4
1.0707017.0199.210.0
1.0757518.11119.910.7
1.0808019.211310.511.3
1.0858520.311411.212.0
1.0909021.42011.812.6
1.0959522.52212.513.3
1.10010023.62413.213.9
1.10510524.72613.814.6
1.11011025.82714.515.2
1.11511526.92915.115.9
1.12012028.021115.816.5
1.12512529.121316.517.2
1.13013030.221417.117.8
1.13513531.33017.818.5
1.14014032.43218.419.1
1.14514533.53419.119.8
1.15015034.63619.820.4
1.15515535.73720.421.1
1.16016036.83921.121.7

Acid (g/l)

SulphuricTartaric
3.55.4
3.65.5
3.75.7
3.85.8
3.96.0
4.06.1
4.16.3
4.26.4
4.36.6
4.46.7
4.56.9
4.67.0
4.77.2
4.87.3
4.97.5
5.07.6
5.17.8
5.28.0
5.38.1
5.48.3
5.58.4
5.68.6

Temperature

°F°C°C°F
20.0-6.7-5.023.0
25.0-3.90.032.0
30.0-1.15.034.8
35.01.710.037.6
40.04.415.040.3
45.07.220.043.1
50.010.025.045.9
55.012.830.048.7
60.015.635.051.4
65.018.340.054.2
70.021.145.057.0
75.023.950.059.8
80.026.755.062.6
85.029.460.065.3
90.032.265.068.1
95.035.070.070.9
100.037.875.073.7
105.040.680.076.4
110.043.385.079.2
115.046.190.082.0
120.048.995.084.8
125.051.7100.087.6
130.054.4105.090.3
135.057.2110.093.1
140.060.0115.095.9
145.062.8120.098.7
150.065.6125.0101.4
155.068.3130.0104.2
160.071.1135.0107.0
165.073.9140.0109.8
170.076.7145.0112.6
175.079.4150.0115.3
180.082.2155.0118.1
185.085.0160.0120.9
190.087.8165.0123.7
195.090.6170.0126.4
200.093.3175.0129.2
205.096.1180.0132.0
210.098.9185.0134.8
215.0101.7190.0137.6
220.0104.4195.0140.3
225.0107.2200.0143.1

SO2

Sodium metabisulphite is 67.40% SO2.
Potassium metabisulphite is 57.64% SO2.
Free SO2 = Molecular SO2 × (10(pH-1.81) + 1)

Acids and Titration

Tartaric acid (g or g/l) = 1.529 × Sulphuric acid = 1.1193 × Malic acid
TA (as tartaric acid (g/l)) = [75 × Concentration of NaOH × Volume of NaOH (ml)] / Volume of sample (ml)


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