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Depends on the concentration.

100% = 3C

93% = -32C

78% = -38C

65% = -64C

See:http://www.cise.columbia.edu/clean/msds/sulfuricacid.pdf

Remember that the temperatures are NEGATIVE!

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11y ago
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14y ago

-74 degrees Celsius (approximate minimum freezing point for 25% solution)

-20 degrees Celsius (approx freezing point for 10% solution which is a common household concentration)

Generally freezing point declines to a concentration of 25%, beyond that concentration the solution begins to crystallize more easily thus raising the freezing point

See the phase diagram here http://en.wikipedia.org/wiki/Hydrochloric_acid

(below the blue line is solid, above is liquid)

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15y ago

I'm not sure about the exact freezing point, but ya know how you can charge an iPod with an onion by dipping it in gatorade, and freezing it? I'm sure you could try that and measure the temperature, because what happens is: There is phosphoric acid in onions, and it would be a cool experiment. I'm not sure the exact temperature though.

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12y ago

The freezing point is exactly the same as the melting point, which for sulphur is 115.21 0C (degrees centigrade).

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15y ago

What is the melting point of sulfuric acid(sulfate) what is the boiling point of that? i want know acidity, basicity number.

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13y ago

−75.5 °C, 198 K, -104 °F

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14y ago

-73 degrees celsius

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14y ago

239.65f

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Q: What is the freezing point of hydrochloric acid?
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