Pharmaceutical & Laboratory Reference

Ethanol–Water Mixture Density

Density in g/mL · 5 decimal places · Mass fraction (% w/w) × Temperature matrix

Model: Wagenbreth–Blanke polynomial, OIML R 22 (1975). Input variable is ethanol mass fraction (% w/w), not volume fraction (% v/v). Valid range: 0–100% w/w, −20 to 40°C. All five validation spot-checks pass; maximum floating-point residual < 5 × 10⁻⁸ kg/m³.

Density table — g/mL

% w/w	15°C	20°C	25°C	30°C	35°C
ethanol	g/mL	g/mL	g/mL	g/mL	g/mL
0	0.99910	0.99820	0.99704	0.99565	0.99403
1	0.99720	0.99631	0.99515	0.99375	0.99211
2	0.99538	0.99449	0.99332	0.99190	0.99025
3	0.99363	0.99273	0.99155	0.99012	0.98845
4	0.99195	0.99102	0.98983	0.98838	0.98669
5	0.99033	0.98938	0.98815	0.98668	0.98497
6	0.98877	0.98778	0.98653	0.98502	0.98329
7	0.98726	0.98624	0.98494	0.98340	0.98164
8	0.98580	0.98473	0.98340	0.98182	0.98002
9	0.98440	0.98327	0.98189	0.98026	0.97843
10	0.98303	0.98185	0.98041	0.97873	0.97685
11	0.98171	0.98046	0.97895	0.97722	0.97528
12	0.98042	0.97910	0.97753	0.97573	0.97373
13	0.97916	0.97776	0.97612	0.97425	0.97219
14	0.97792	0.97644	0.97472	0.97278	0.97065
15	0.97670	0.97513	0.97333	0.97132	0.96911
16	0.97549	0.97383	0.97195	0.96985	0.96757
17	0.97429	0.97254	0.97056	0.96838	0.96602
18	0.97309	0.97124	0.96917	0.96690	0.96446
19	0.97189	0.96993	0.96777	0.96541	0.96288
20	0.97067	0.96861	0.96635	0.96391	0.96129
21	0.96943	0.96727	0.96491	0.96238	0.95968
22	0.96817	0.96590	0.96345	0.96083	0.95805
23	0.96688	0.96451	0.96197	0.95926	0.95639
24	0.96556	0.96309	0.96045	0.95766	0.95471
25	0.96421	0.96163	0.95891	0.95602	0.95299
26	0.96281	0.96014	0.95732	0.95436	0.95125
27	0.96138	0.95861	0.95571	0.95266	0.94948
28	0.95990	0.95705	0.95405	0.95093	0.94768
29	0.95838	0.95544	0.95236	0.94917	0.94585
30	0.95682	0.95378	0.95063	0.94737	0.94399
31	0.95521	0.95209	0.94887	0.94553	0.94209
32	0.95355	0.95036	0.94706	0.94367	0.94017
33	0.95185	0.94858	0.94522	0.94177	0.93821
34	0.95010	0.94677	0.94335	0.93983	0.93623
35	0.94831	0.94492	0.94144	0.93787	0.93422
36	0.94648	0.94303	0.93949	0.93588	0.93218
37	0.94462	0.94111	0.93752	0.93386	0.93012
38	0.94271	0.93915	0.93551	0.93181	0.92803
39	0.94077	0.93716	0.93348	0.92973	0.92592
40	0.93880	0.93515	0.93142	0.92764	0.92379
41	0.93679	0.93310	0.92934	0.92552	0.92164
42	0.93476	0.93103	0.92724	0.92338	0.91947
43	0.93270	0.92894	0.92511	0.92122	0.91729
44	0.93062	0.92682	0.92296	0.91905	0.91508
45	0.92851	0.92469	0.92080	0.91686	0.91287
46	0.92638	0.92253	0.91862	0.91465	0.91064
47	0.92424	0.92037	0.91643	0.91244	0.90839
48	0.92208	0.91818	0.91422	0.91021	0.90614
49	0.91990	0.91598	0.91200	0.90796	0.90388
50	0.91771	0.91377	0.90977	0.90571	0.90160
51	0.91551	0.91155	0.90753	0.90345	0.89932
52	0.91329	0.90931	0.90527	0.90118	0.89703
53	0.91106	0.90707	0.90301	0.89890	0.89473
54	0.90882	0.90481	0.90074	0.89661	0.89242
55	0.90658	0.90255	0.89846	0.89431	0.89011
56	0.90432	0.90028	0.89617	0.89201	0.88779
57	0.90205	0.89799	0.89388	0.88970	0.88546
58	0.89977	0.89570	0.89157	0.88738	0.88313
59	0.89749	0.89340	0.88926	0.88506	0.88079
60	0.89520	0.89110	0.88694	0.88272	0.87845
61	0.89289	0.88878	0.88461	0.88038	0.87610
62	0.89058	0.88646	0.88228	0.87804	0.87374
63	0.88827	0.88413	0.87994	0.87568	0.87137
64	0.88594	0.88179	0.87759	0.87332	0.86900
65	0.88361	0.87945	0.87523	0.87096	0.86663
66	0.88127	0.87709	0.87287	0.86858	0.86424
67	0.87892	0.87473	0.87050	0.86620	0.86186
68	0.87656	0.87237	0.86812	0.86382	0.85946
69	0.87420	0.86999	0.86573	0.86142	0.85706
70	0.87183	0.86761	0.86334	0.85902	0.85465
71	0.86945	0.86522	0.86094	0.85662	0.85224
72	0.86706	0.86283	0.85854	0.85420	0.84982
73	0.86467	0.86043	0.85613	0.85178	0.84739
74	0.86227	0.85802	0.85371	0.84936	0.84495
75	0.85986	0.85560	0.85129	0.84693	0.84251
76	0.85745	0.85317	0.84885	0.84449	0.84007
77	0.85502	0.85074	0.84641	0.84204	0.83761
78	0.85258	0.84830	0.84397	0.83958	0.83515
79	0.85014	0.84585	0.84151	0.83712	0.83268
80	0.84768	0.84339	0.83904	0.83465	0.83020
81	0.84521	0.84091	0.83656	0.83216	0.82771
82	0.84273	0.83843	0.83407	0.82967	0.82521
83	0.84024	0.83593	0.83157	0.82716	0.82270
84	0.83772	0.83341	0.82905	0.82464	0.82018
85	0.83519	0.83088	0.82651	0.82210	0.81764
86	0.83264	0.82832	0.82396	0.81955	0.81509
87	0.83007	0.82575	0.82139	0.81698	0.81252
88	0.82747	0.82315	0.81879	0.81439	0.80993
89	0.82485	0.82053	0.81617	0.81177	0.80733
90	0.82220	0.81788	0.81353	0.80913	0.80470
91	0.81952	0.81521	0.81085	0.80647	0.80204
92	0.81681	0.81249	0.80815	0.80377	0.79936
93	0.81407	0.80975	0.80541	0.80104	0.79665
94	0.81128	0.80697	0.80263	0.79827	0.79390
95	0.80845	0.80414	0.79981	0.79547	0.79110
96	0.80558	0.80127	0.79695	0.79261	0.78827
97	0.80266	0.79836	0.79404	0.78971	0.78538
98	0.79968	0.79538	0.79107	0.78676	0.78243
99	0.79663	0.79235	0.78805	0.78374	0.77941
100	0.79351	0.78924	0.78495	0.78065	0.77631

Computed from the Wagenbreth–Blanke polynomial (54 coefficients) as published in OIML International Recommendation R 22 (1975), oiml.org. Coefficients available at github.com/ququqem/wagenbreth-blanke-oiml-r22 (DOI: 10.5281/zenodo.19426888).