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Methanol Freeze Protected Heat Transfer Liquids

Freezing and flash points for methanol or methyl based heat-transfer fluids or brines.

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Freezing Point of Methanol based Water Solutions

Freezing Point
Methanol Concentration (%)	by mass	0	10	20	30	40	50	60	70	80	90	100
Methanol Concentration (%)	by volume	0	13	24	35	46	56	66	75	83	92	100
Temperature	^oF	32	20	0	-15	-40	-65	-95	-115	-125	-130	-144
Temperature	^oC	0	-7	-18	-26	-40	-54	-71	-82	-87	-90	-98

Flash Points of Methanol based Water Solutions

The flash point of a chemical is the lowest temperature where it will evaporate enough fluid to form a combustible concentration of gas. The flash point is an indication of how easy a chemical may burn.

Flash Point
Methanol Concentration (%)	by mass	0	10	20	30	40	50	60	70	80	90	100
Methanol Concentration (%)	by volume	0	13	24	35	46	56	66	75	83	92	100
Temperature	^oF	-	130	110	95	85	75	70	60	54	54	54
Temperature	^oC	-	54	43	35	29	24	21	16	12	12	12

Warning

HIGH flammability if pure
HIGH toxicity

Alternatives to Methanol based Water Solutions

Physical Properties of Methanol

Molecular Weight : 32.04
Boiling Point : 64.7 ^oC
Melting Point : -97.8 ^oC
Flash Point : 12 ^oC (54 ^oF) closed cup
Auto ignition Temperature : 878 ^oF
Vapor Pressure : 92 mm Hg at 20 ^oC
Density/Specific Gravity : 0.7915 at 20/4 ^oC (water = 1)
Vapor Density : 1.11 (air = 1)

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Related Topics

Material Properties - Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
Melting and Freezing Points - Melting and freezing points of elements and chemical species at varying conditions.

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