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Freezing point of sulfuric acid

2008-02-16View Original

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What is the freezing point of 98% sulfuric acid?
Reply #22008-02-16
6 degrees,. ，。 ，，。 ，。 ，，
Reply #32008-02-16
H2SO4 (concentrated) %: 84, 85, 86, 87, 88, 89, 90, 91, 92; Freezing point (°C): +8.3, +7.9, +6.6, +4.0, +0.5, -4.2, -10.2, -17.3, -25.6. H2SO4 (concentrated) %: 93, 93.3, 94, 95, 96, 97, 98, 99, 100; Freezing point (°C): -35.0, -37.8, -30.8, -21.8, -13.6, -6.3, +0.1, -5.7, +10.45
Reply #42008-02-17
The freezing point of sulfuric acid at 99% concentration upstairs seems to be +5.7 :)

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Translated at 2026-07-28 18:42:48

Original: https://bbs.hcbbs.com/thread-152203-1-1.html

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