Difference between revisions of "Table summarizing of properties of deicing agents"
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<td rowspan=3>Acetate Based Deicers</td> | <td rowspan=3>Acetate Based Deicers</td> | ||
<td>Calcium Magnesium Acetate</td> | <td>Calcium Magnesium Acetate</td> | ||
| − | <td>20°F</td> | + | <td>20°F [https://www.cryotech.com/snow-and-ice-control-chemicals-for-airports-operations]</td> |
<td>Low/moderate; Potential to initiate and accelerate corrosion due to elevated conductivity</td> | <td>Low/moderate; Potential to initiate and accelerate corrosion due to elevated conductivity</td> | ||
<td>Moderate/high: Will exacerbate scaling; risk of pate deterioration from magnesium reactions</td> | <td>Moderate/high: Will exacerbate scaling; risk of pate deterioration from magnesium reactions</td> | ||
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<tr> | <tr> | ||
<td>Potassium Acetate</td> | <td>Potassium Acetate</td> | ||
| − | <td>-15°F</td> | + | <td>-15°F [https://www.cryotech.com/snow-and-ice-control-chemicals-for-airports-operations]</td> |
<td>Low/moderate; Potential to initiate and accelerate corrosion due to elevated conductivity</td> | <td>Low/moderate; Potential to initiate and accelerate corrosion due to elevated conductivity</td> | ||
| − | <td> | + | <td></td> |
<td>Low; probably little or no effect</td> | <td>Low; probably little or no effect</td> | ||
<td>High: Organic content leading to oxygen demand</td> | <td>High: Organic content leading to oxygen demand</td> | ||
<td>Low: Leads to reduced abrasives use</td> | <td>Low: Leads to reduced abrasives use</td> | ||
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Sodium Acetate</td> | <td>Sodium Acetate</td> | ||
| − | <td>-20°F</td> | + | <td>-20°F [https://www.cryotech.com/snow-and-ice-control-chemicals-for-airports-operations]</td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>Molasses</td> | <td>Molasses</td> | ||
<td>NA</td> | <td>NA</td> | ||
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
</tr> | </tr> | ||
<tr> | <tr> | ||
<td>Corn Syrup</td> | <td>Corn Syrup</td> | ||
<td>NA</td> | <td>NA</td> | ||
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
| − | <td> | + | <td></td> |
</tr> | </tr> | ||
</table> | </table> | ||
Revision as of 13:53, 31 December 2020
Table summarizing of properties of deicing agents. Adapted from Local Road Research Board, 2012, Ketcham et al., 1996 and Levelton Consultants Ltd., 2008.
Link to this table
| Category | Type | Lowest Practical Melting Pavement Temperature 1,2 | Potential for corrosion impairment3 | Environmental Impact3 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Atmospheric Corrosion to Metals | Concrete Matrix | Concrete Reinforcing | Water Quality/Aquatic Live | Air Quality | Soils | Vegetation | |||
| Chloride Based Deicers | Sodium Chloride | 15°F | High; will initiate and accelerate corrosion | Low/moderate; Will exacerbate scaling; low risk of paste attack | High: Will initiate corrosion of rebar | Moderate: Excessive chloride loading/metals contaminants; ferrocyanide additives | Low: Leads to reduced abrasives use | Moderate/High: Sodium accumulation breaks down soil structure and decreases permeability and soil stability; potential for metals to mobilize | High: Spray causes foliage damage; osmotic stress harms roots, chloride toxicosis |
| Calcium Chloride | -20°F | High; Will initiate and accelerate corrosion; higher potential for corrosion related to hydroscopic properties | Low/moderate; Will exacerbate scaling; low risk of paste attack | High: Will initiate corrosion of rebar | Moderate: Excessive chloride loading; heavy metal contamination | Low: Leads to reduced abrasives use | Low/Moderate: Improves soil structure; increases permeability; potential for metals to mobilize | High: Spray causes foliage damage; osmotic stress harms roots, chloride toxicosis | |
| Magnesium Chloride | -10°F | High; Will initiate and accelerate corrosion; higher potential for corrosion related to hydroscopic properties | Moderate/high: Will exacerbate scaling; risk of paste deterioration from magnesium | High: Will initiate corrosion of rebar, evidence suggest MgCl2 has the highest potential for corrosion of chloride produces | Moderate: Excessive chloride loading; heavy metal contamination | Low: Leads to reduced abrasives | Low/Moderate: Improves soil structure; increases permeability; potential for metals to mobilize | High: Spray causes foliage damage; osmotic stress harms roots, chloride toxicosis | |
| Acetate Based Deicers | Calcium Magnesium Acetate | 20°F [1] | Low/moderate; Potential to initiate and accelerate corrosion due to elevated conductivity | Moderate/high: Will exacerbate scaling; risk of pate deterioration from magnesium reactions | Low; probably little or no effect | High: Organic content leading to oxygen demand | Low: Leads to reduced abrasives use | Low/Moderate: Improves soil structure; increases permeability; potential for metals to mobilize | Low: Little or no adverse effect; osmotic stress at high levels |
| Potassium Acetate | -15°F [2] | Low/moderate; Potential to initiate and accelerate corrosion due to elevated conductivity | Low; probably little or no effect | High: Organic content leading to oxygen demand | Low: Leads to reduced abrasives use | ||||
| Sodium Acetate | -20°F [3] | ||||||||
| Carbohydrates | Beet Juice | NA | Low; Potential to initiate and accelerate corrosion due to elevated conductivity clams of mitigation of corrosion require further evaluation | Low; Probably little or no effect | Low; Probably little or no effect; claims of mitigation of corrosion require further evaluation | High Organic matter leading to oxygen demand; nutrient enrichment by phosphorus and nitrogen; heavy metals | Low: Leads to reduced abrasive use | Low: Probably little or no effect; limited information available | Low: Probably little or no effect |
| Molasses | NA | ||||||||
| Corn Syrup | NA | ||||||||