Sodium Chloroacetate SMCA Precursor for Carboxymethyl Starch Biochemical and Textile Applications

Biodegradation in Water

Sodium Chloroacetate (C₂H₂ClNaO₂, CAS 3926‑62‑3) biodegrades readily in aquatic environments, with 70–90% mineralization to CO₂ and chloride ions within 8–10 days in activated sludge or river water at around 29 °C assets.thermofisher.comhpvchemicals.oecd.org. This indicates rapid environmental breakdown and low persistence.

2. Soil Fate and Mobility

In soil, SMCA is highly water-soluble with low sorption, leading to high mobility . Under neutral conditions and moderate temperatures, it undergoes significant biodegradation in days; under acidic or cold conditions, persistence may increase hpvchemicals.oecd.org. However, even under such conditions, environmental half-life remains under ~16 days biomedrb.com+15epa.govt.nz+15hpvchemicals.oecd.org+15.

3. Aquatic Toxicity Profile

SMCA is classified as Acute Aquatic Toxicity Category 1 (H400) ecetoc.org+7assets.thermofisher.com+7fishersci.co.uk+7.

• Algae: 72-hour NOEC ~0.006 mg/L (Desmodesmus) sigmaaldrich.com

• Daphnia: 21‑day NOEC ~32 mg/L hpvchemicals.oecd.org+9sigmaaldrich.com+9ecetoc.org+9

• Fish: 35-day NOEC <25 mg/L in zebrafish embryo epa.govt.nz+1ecetoc.org+1.

Therefore, SMCA poses risk to aquatic life at low concentrations and should be managed carefully.

4. Bioaccumulation and PBT Profile

Due to a low log Pₒw (~–3.8), SMCA does not bioaccumulate pubchem.ncbi.nlm.nih.gov+5sigmaaldrich.com+5ecetoc.org+5mdpi.com+2scirp.org+2en.wikipedia.org+2. It is not classified as PBT or vPvB, confirming minimal long-term environmental persistence under OECD screening criteria fishersci.co.uk.

5. Regulatory and Environmental Guidelines

• Biodegradability: >70% within 10 days meets “readily biodegradable” standards.

• Aquatic hazard: Requires labeling and spill prevention under GHS/Class 6.1 sigmaaldrich.com+1ecetoc.org+1sigmaaldrich.com+2assets.thermofisher.com+2chemicalsafety.ilo.org+2.

• Soil remediation: Remediation usually unnecessary except in spills; bioaugmentation may accelerate cleanup.

6. Best Practices for Environmental Protection

• Prevent SMCA release into water systems; use containment around mixers and drains.

• In wastewater treatment, activated sludge systems effectively degrade SMCA.

• During spills, absorb on inert material and dispose per local regulations.

7. Internal Link to HighMountainChem

For industrial users seeking High‑Purity SMCA, including details on environmental behavior and proper packaging, see HighMountainChem’s product page:
https://highmountainchem.com/sodium-chloroacetate-cas-3926-62-3/

Wuxi High Mountain Hi-tech Development Co., Ltd is a professional industrial company engaged in special chemical production, technology research & development, and import & export. The company focuses on the production, trade, and research & development of various chemical products.

Since establishment, the company has been concentrating on constructing an international marketing network and optimizing supply chain management, where we have established a long-term strategic cooperation relationship with numerous large enterprises at home and abroad. Relying on our wide business channels and professional experience, we are more skillfully providing products of stable but differentiated quality, along with flexible, highly efficient & considerate service to satisfy our partner at more competitive pricing.

Efficiently treating our customers as partners with sincerity, specialization and satisfaction is our managerial principle. Attributed to the backup of a dedicated technical team, filled with wide and profound knowledge and practice in chemicals and world trade for 20 years, the company owns rich experience in product quality control, technical solution, chemical logistics organization, packaging optimization, port operation, etc., which accounts for its first-class cost control management and ensures to maintain the overwhelming competitive advantage over others. In line with the principle of sharing the preferential cost and joint development, the company has formed an interesting community for years with its customers at home and abroad. Sincerely to build up a pleasant mutual trust, cooperative, win-win, and value-added sustainable partnership is what we are achieving to grow together with you!

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