SMCA (C₂H₂ClNaO₂, CAS 3926‑62‑3) is water-soluble, highly mobile in the environment, and can contaminate soil and groundwater, especially near production, processing, or disposal sites. As a chloride-rich salt, it shares characteristics with other soil contaminants such as sodium chloride and hydrocarbon-bound salts ecetoc.org+4environmentclearance.nic.in+4linkedin.com+4fishersci.ie+2tradekorea.com+2fishersci.no+2.
To design an effective remediation plan:
Measure soluble salts (EC/TSS) to assess salinity and sodium buildup, affecting soil structure and permeability kdhe.ks.gov.
Map chloride plume migration through vadose and groundwater zones to evaluate risk of leaching .
Introduce clean water through soil to dissolve and carry SMCA out of contaminated zones; requires calcium amendments (e.g., gypsum, BioCal) to prevent soil dispersion and maintain structure linkedin.com+2dmr.nd.gov+23tiertech.com+2.
Although primarily for VOCs, in situ chemical oxidation using agents like permanganate or persulfate may help bind or degrade reactive contaminants co-present with SMCA en.wikipedia.org.
Cement-based or geochemical binding can immobilize SMCA in soil, blocking mobilization and supporting vegetation .
SMCA is biodegradable, often under aerobic conditions. Biopile systems (soil piles with aeration, moisture control, nutrients) support microbial degradation; best used alongside flushing to remove salts clu-in.org+4dmr.nd.gov+4web.engr.oregonstate.edu+4.
Soil EC, ESP, pH to track salinity and structure restoration kdhe.ks.gov.
Chloride and SMCA concentrations in soil/water regularly sampled to gauge contaminant reduction.
Ecological recovery indicators like plant health, flora/fauna return, and soil respiration rates .
Use calcium amendments (gypsum/BioCal at 1:50–1:100 dilution) before flushing to avoid soil dispersion dmr.nd.gov.
Combine chemical treatment with biological systems like biopiles to optimize remediation efficiency.
Ensure containment of leachate, proper drainage, and treatment of effluents to prevent off-site pollution.
For guidance on SMCA environmental handling and packaging recommendations, refer to HighMountainChem’s SMCA product page:
https://highmountainchem.com/sodium-chloroacetate-cas-3926-62-3/
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