Calcium Chloride - Dust Suppression
Calcium Chloride - Dust Suppression
(OP)
I have used calcium chloride for years as a temporary dust suppressant and stabilizer. The Federal government has deemed salt as toxic (to certain species of fauna and fish) and this includes calcium chloride. My question pertains to the chemical reactions that take place in the soils when the calcium is entrained in the road gravels (road surface). Does the product degrade or react with the soils to become "less toxic" over a period of time. I realize that continued moisture reduces the effectiveness as a dust suppressant, but is the material changed chemically or simply lost (to runoff) into the ditches? I have to make a presentation on the subject, and I know that will be a question some astute councillor will ask. Any ideas?
KRS Services
www.krs-services.com





RE: Calcium Chloride - Dust Suppression
Dilution of CaCl2 surely lowers its overall toxicity. Again, its a matter of concentration levels. Ca++ and Cl- are, for the most part unreative; they may "adsorb" to soils (e.g., Ca++ to clay particles); but it does not enter into chemical reaction per se.
RE: Calcium Chloride - Dust Suppression
(environmental Mining issues)