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Scientific Proof in Favor of Peladow Calcium Chloride

Posted By admin On 06/18/2012 @ 2:55 pm In | No Comments

SCIENTIFIC PROOF IN FAVOR OF PELADOW CALCIUM CHLORIDE

Choosing a deicer can be confusing. So many brands. And so many carefully worded claims. But, it gets easier once you know there are only a few materials to compare. And the choice is downright obvious when you look at the facts on performance. PELADOW* calcium chloride pellets outperform the others in every way that counts.

PELADOW Calcium Chloride Pellets

Description: Small, white pellets processed from naturally-occurring material.
Relative deicing speed: Fastest-acting deicer at all temperatures.
Lowest practical temperature: Down to -25°F.
Effect on concrete: Does not chemically attack concrete. Poses least threat of damage from freeze-induced expansion pressure.
Effect on vegetation: Used as recommended, will not harm vegetation. Calcium chloride is used as a calcium source for certain fruits and vegetables.
Residue: Leaves no powdery residue.
Manufacturer’s recommended application rate: 2-4 oz./yd².
Comments: Calcium chloride gives off heat as it dissolves, therefore melting more ice faster at lower temperatures than other common chemical deicers.

Flake Calcium Chloride

Description: Flat off-white containing 16 to 20% water of hydration.
Relative deicing speed: Starts about as fast as PELADOW but does not have the same melting ability.
Lowest practical temperature: Down to -25°F.
Effect on concrete: Does not chemically attack concrete. Poses least threat of damage from freeze-induced expansion pressure.
Effect on vegetation: Used as recommended, will not harm vegetation. Calcium chloride is used as a calcium source for certain fruits and vegetables.
Residue: Leaves no powdery residue.
Manufacturer’s recommended application rate: 2-4 oz./yd².
Comments: Although flake calcium chloride does give off some heat, it gives off less heat than PELADOW. Calcium chloride flake outperforms all other deicers except PELADOW.

Halite Rock Salt

Description: Irregularly shaped sodium chloride crystals.
Relative deicing speed: Slower than calcium chloride, faster than potassium chloride, urea.
Lowest practical temperature: Down to 20°F.
Effect on concrete: Does not chemically attack concrete. Can cause damage from freeze-induced expansion pressures by increasing number of freeze/thaw cycles.
Effect on vegetation: Used as recommended, will not harm vegetation. However, sodium ion is toxic to vegetation.
Residue: Leaves a white, powdery residue when it dries.
Manufacturer’s recommended application rate: 8oz./yd².
Comments: Sodium chloride provides adequate, economical performance at temperatures at or just below 32°F. As temperatures drop below freezing, its ice-melting performance slows substantially. Most frequently used deicer for highway applications; often treated with liquid calcium chloride or mixed with calcium chloride to improve low-temperature performance on highways.

Safe Step Ice Melter with MG 104

Description: A blend consisting of a nearly 50/50 mix of rock salt and potassium chloride. A very small amount of the chemical methyl-glucoside is also added.
Relative deicing speed: Melts less than rock salt due to the addition of potassium chloride.
Lowest practical temperature: Down to 20°F to 25°F.
Effect on concrete: Does not chemically attack concrete. Can cause damage from freeze-induced expansion pressures by increasing number of freeze/thaw cycles.
Effect on vegetation: Used as recommended, will not harm vegetation. However, sodium ion is toxic to vegetation.
Residue: Leaves a white, powdery residue when it dries.
Manufacturer’s recommended application rate: Manufacturer suggests 1 cup (8 oz.)/yd².
Comments: Less effective (by over 30%) than plain rock salt due to the addition of potassium chloride which is an ineffective deicer at temperatures below 25°F.

Potassium Chloride

Description: Irregular shaped, off-white crystals
Relative deicing speed: Much slower than calcium chloride and slower than sodium chloride (rock salt).
Lowest practical temperature: Down to 25°F. Ice melting performance falls off significantly as temperatures drop.
Effect on concrete: Does not chemically attack concrete. Can cause damage from freeze-induced expansion pressures by increasing number of freeze/thaw cycles.
Effect on vegetation: Used as recommended, will not harm vegetation.
Residue: Leaves a white, powdery residue when it dries.
Manufacturer’s recommended application rate: 80 oz./yd².
Comments: Based on eutectic temperature, least effective of all deicers.

Flake Magnesium Chloride

Description: Large, flat, clear to off-white flakes containing over 51% water of hydration.
Relative deicing speed: Starts about as fast as calcium chloride but may become diluted and ineffective.
Lowest practical temperature: Down to 5°F.
Effect on concrete: Chemically attacks concrete at a “slow rate”. Can cause damage from freeze-induced expansion pressures by increasing number of freeze/thaw cycles.
Effect on vegetation: Used as recommended, will not harm vegetation. However, magnesium chloride, on a percentage basis, contains 17 to 56% more chloride ion than other “salt” type deicers.
Residue: Leaves no powdery residue.
Manufacturer’s recommended application rate: None given.
Comments: Flake magnesium chloride contains over 51% water. It starts deicing almost as fast as calcium chloride but may become diluted and ineffective. “Slowly†” attacks concrete chemically.

†Reference for “slow” rate of concrete attack per American Concrete Institute, ACI 201.2R-92, Guide to Durable Concrete.

Superior Snow-N-Ice Melter w/CMA

Description: Pink dyed crystals consisting of 99% rock salt and a trace of Calcium Magnesium Acetate (CMA).
Relative deicing speed: Same as rock salt.
Lowest practical temperature: Down to 20°F.
Effect on concrete: Does not chemically attack concrete. Can cause damage from freeze-induced expansion pressures by increasing number of freeze/thaw cycles. Could stain pavement from the dye used to color the deicer.
Effect of vegetation: Used as recommended, will not harm vegetation. However, sodium ion is toxic to vegetation.
Residue: Leaves a white to pink, powdery residue when it dries.
Manufacturer’s recommended application rate: Manufacturer suggests 1 to 4 lbs. per 500 ft² (0.3-1.2 oz/yd²) after removing as much snow and ice as possible.
Comments: Superior Snow-N-Ice Melter is approximately 99% rock salt with less than 1% CMA. Crystals are dyed pink which could stain concrete. Melts the same as rock salt.

Premiere Ice Melter with CMA

Description: Blue dyed crystals consisting of 99% rock salt and a trace of Calcium Magnesium Acetate (CMA).
Relative deicing speed: Same as rock salt.
Lowest practical temperature: Down to 20°F.
Effect on concrete: Does not chemically attack concrete. Can cause damage from freeze-induced expansion pressures by increasing number of freeze/thaw cycles. Could stain pavement from the dye used to color the deicer.
Effect on vegetation: Used as recommended, will not harm vegetation. However, sodium ion is toxic to vegetation.
Residue: Leaves a white to blue, powdery residue when it dries.
Manufacturer’s recommended application rate: 1 to 4 lbs. per 500 ft² (0.3 to 1.2 oz/yd²).
Comments: Premiere Ice Melter is 99% rock salt with a trace amount of CMA. Claims of being “environmentally safer” are false. Crystals are dyed blue which could stain concrete. Melts the same as rock salt.

*Trademark of the Occidental Chemical Company


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