Sodium Dichloro Isocyanurate, Sodium Dichloroisocyanurate, Troclosene Sodium, SDIC, NaDCC, DCCNa, 2893-78-9, 51580-86-0

Sodium Dichloro Isocyanurate, Sodium Dichloroisocyanurate, Troclosene Sodium, SDIC, NaDCC, DCCNa, 2893-78-9, 51580-86-0

• Chemical Properties:

• CAS Number: 2893-78-9 (anhydrous), 51580-86-0 (dihydrate)

• EINECS: 220-767-7

• Molecular Formula: C₃Cl₂N₃NaO₃

• Appearance: White powder or granules

• Available Chlorine: 55–60%

• pH (1% solution): 5.5–7.0

• Solubility: Soluble in water

• Odor: Chlorine-like

Applications:

• Swimming Pools: Controls algae and bacteria

• Drinking Water Disinfection: Safe in low doses

• Industrial Water Systems: Cooling towers, recycled water

• Agriculture: Irrigation water sanitation

• Food Processing: Surface disinfection (regulated use)

• Household Cleaners: Tablets or powders for disinfection

Alternatives:

• Calcium Hypochlorite: Higher chlorine, less stable

• Sodium Hypochlorite: Liquid form, short shelf life

• Trichloroisocyanuric Acid (TCCA): 90% chlorine, slow dissolving

Production Overview:

1. Cyanuric Acid Synthesis (from urea and chlorine)

2. Chlorination: Reaction with chlorine to form dichloro derivative

3. Neutralization: With sodium hydroxide to form sodium salt

4. Drying and Granulation

Sodium Dichloroisocyanurate (SDIC) Industrial Applications:

1. Water Treatment and Disinfection

• Drinking Water Sanitization: SDIC is widely used at concentrations of 1–5 ppm for emergency or daily disinfection of potable water, endorsed by WHO and EPA guidelines.

• Industrial Water Circuits: Applied in cooling towers, boiler feedwater, and recycling systems to control microbial growth and prevent biofilm formation on surfaces and pipelines.

• Wastewater Treatment: Used in final-stage chlorination of treated water; its stable chlorine release ensures prolonged effectiveness, even in the presence of organic loads.

2. Food and Beverage Industry

• Surface Disinfection (CIP systems): Ideal for sanitizing processing equipment and food-contact surfaces in dairy, beverage, and ready-to-eat production lines. Effective against Salmonella, Listeria, and E. coli.

• Produce Washing: In certain jurisdictions, SDIC solutions (typically 50–200 ppm) are used for surface sanitation of fresh produce like lettuce, tomatoes, and apples to reduce microbial loads.

3. Agriculture and Horticulture

• Irrigation Water Disinfection: Prevents microbial growth, algae buildup, and line blockage in drip and sprinkler irrigation systems, especially in greenhouse applications.

• Seed and Nursery Treatment: Low-concentration SDIC baths are used to sterilize seeds and seedlings, providing protection against fungal and bacterial pathogens.

4. Healthcare and Sanitation

• Hospitals & Clinics: Effective surface disinfectant for operating rooms, patient wards, and laboratory benches. SDIC is active against TB, HBV, HIV, and various antibiotic-resistant bacteria.

• Personal Emergency Kits: Available in tablet form for emergency disinfection of water while traveling or during disaster relief missions.

5. Pools and Spas

• Swimming Pools: Controls bacteria, algae, and viruses; dissolves more quickly than TCCA, making it suitable for shock chlorination and routine chlorination alike.

• Hot Tubs and Spas: Chosen for its stability at high temperatures and low residue formation, ensuring safe and clean water without odor.

6. Pulp & Paper and Textile Industry

• Microbial Control & Whitening: Added during paper and fabric processing to inhibit microbial contamination and provide mild bleaching effects during manufacturing cycles.

7. Animal Husbandry and Veterinary Use

• Barn and Pen Disinfection: Used to sanitize stables, poultry farms, and kennels to prevent outbreaks of avian influenza, foot-and-mouth disease, and salmonellosis.

• Drinking Water Sanitization: Keeps livestock drinking systems hygienic, preventing spread of waterborne pathogens and biofilm formation in automated drinking lines.

Synonyms:

• SDIC

• Troclosene Sodium

• NaDCC

• DCCNa

• Sodium dichloro-s-triazinetrione

• Sodium dichloroisocyanurate dihydrate

🧪 General Information

• Chemical Name: Sodium Dichloroisocyanurate

• Abbreviations: SDIC, Troclosene Sodium

• CAS Number: 2893-78-9 (anhydrous), 51580-86-0 (dihydrate)

• Chemical Formula: C₃Cl₂N₃NaO₃

• Molar Mass: 219.95 g/mol (anhydrous), 255.98 g/mol (dihydrate)

• Appearance: White crystalline powder

• Odor: Slight chlorine-like smell

• Available Chlorine Content: ~60%

🌊 Applications

SDIC is a chlorine-based disinfectant widely used across industries due to its stability and effectiveness:

• Drinking Water Treatment: Disinfection and microbial control

• Swimming Pools: Chlorination and algae prevention

• Food Industry: Surface and equipment sanitation

• Agriculture: Irrigation system disinfection

• Animal Husbandry: Stable and water disinfection in farms

• Healthcare Facilities: Surface and instrument sterilization

• Textile Industry: Bleaching and microbial control

• Paper & Pulp: Microbial control and whitening

• Domestic Cleaning: Toilet, sink, and surface disinfection

✅ Advantages

• High Stability: Long shelf life and easy transport

• Strong Oxidizing Power: Releases hypochlorous acid (HOCl) upon dissolution

• Broad-Spectrum Disinfection: Effective against bacteria, viruses, fungi

• Convenient Forms: Available as tablets, granules, or powder

• Cost-Effective: Economical for large-scale use

⚠️ Precautions

• Corrosive in High Concentrations: May damage sensitive surfaces

• Chlorine Residue Risk: Especially in food and textile applications

• Proper Dosing Required: Overuse can lead to irritation or environmental harm

• Storage: Keep in a cool, dry place away from acids and moisture

🔄 Alternatives to SDIC

🏭 Sector Compatibility Table

⚗️ Chemical Behavior During Use

• Hydrolysis Reaction: Upon dissolving in water, SDIC undergoes hydrolysis to release hypochlorous acid (HOCl)—a powerful oxidizing agent responsible for its disinfecting action.

• Disinfection Mechanism: HOCl penetrates microbial cell walls and oxidizes essential proteins and enzymes, leading to cell death.

• Stability Profile: SDIC remains stable under dry conditions and decomposes slowly in humid environments, making it ideal for long-term storage.