Ice Melt

Ice melt can be mixed into many different formulas.  Factors that determine the mixture of ice melt are temperature, location and cost.

Chemicals Used to Melt Ice

Name

Formula

Lowest Practical Temp

Pros

Ammonium sulfate

(NH4)2SO4

-7°C
(20°F)

Fertilizer

Calcium chloride

CaCl2

-29°C
(-20°F)

Melts ice faster than sodium chloride

Calcium magnesium acetate (CMA)

Calcium Carbonate, CaCO3, magnesium carbonate MgCO3, and acetic acid CH3COOH

-9°C
(15°F)

Safest for concrete & vegetation

Magnesium chloride

MgCl2

-15°C
(5°F)

Melts ice faster than sodium chloride

Potassium acetate

CH3COOK

-9°C
(15°F)

Biodegradable

Potassium chloride

KCl

-7°C
(20°F)

Fertilizer

Sodium chloride (rock salt, halite)

NaCl

-9°C
(15°F)

Keeps sidewalks dry

Urea

NH2CONH2

-7°C
(20°F)

Fertilizer