Sodium Dichloroisocyanurate
Sodium Dichloroisocyanurate (DCCNa or SDIC) is a highly effective, broad-spectrum chlorinated disinfectant, bactericide, and bleaching agent. It appears as a white crystalline powder, granules, or tablets with a chlorine odor.
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Product Information

Sodium Dichloroisocyanurate (DCCNa or SDIC) is a highly effective, broad-spectrum chlorinated disinfectant, bactericide, and bleaching agent. It appears as a white crystalline powder, granules, or tablets with a chlorine odor. Its most notable features are its high available chlorine content, rapid dissolution rate in water, and quick release of the active bactericidal component, hypochlorous acid (HOCI). Compared to Trichloroisocyanuric Acid (TCCA), it has better water solubility, and its solution is nearly neutral, resulting in less corrosiveness to materials. DCCNa is stable and convenient to use, finding widespread application in various water disinfection, industrial bleaching, and sanitation fields.


Product Name (English)Sodium Dichloroisocyanurate (DCCNa / SDIC)
CAS No.2893-78-9 (anhydrous)
Physical Properties- White crystalline powder, granules, or tablets with a chlorine odor
- Highly soluble in water (25g/100mL, 25°C)
- Strong oxidizing agent, releases hypochlorous acid rapidly in water
- Hygroscopic
Applications- Fast-acting disinfectant for swimming pools, drinking water, and wastewater
- Industrial bleaching agent for textiles and pulp
- Sanitizer in food processing and animal husbandry
- Household disinfectant and algicide
SpecificationsAvailable Chlorine: ≥60% (anhydrous basis)
Moisture: ≤3.0%
pH (1% solution): 5.5-7.0
Sieve Residue: Varies by form (powder/granule/tablet)
Packaging25 KG/drum, 50 KG/drum (plastic); 25 KG/bag (with inner plastic bag)


Product Nature


  1. Physical Properties:
    · Appearance: White crystalline powder, granules, or tablets.
    · Odor: Slight pungent chlorine odor.
    · Solubility: Highly soluble in water, fast dissolution rate. Aqueous solution is slightly acidic to nearly neutral.
    · Hygroscopicity: Hygroscopic in air.

  2. Chemical Properties:
    · Strong Oxidizing Agent: A powerful oxidizer.
    · Hydrolysis: Hydrolyzes rapidly in water, releasing hypochlorous acid (HOCI) and sodium isocyanurate. Hypochlorous acid is the key active species for disinfection and bleaching.
    · Stability: Stable in dry state, but readily decomposes releasing chlorine gas in moist air.
    · Incompatibility: Forms explosive nitrogen trichloride (NCl₃) when mixed with nitrogen-containing compounds like ammonium salts, ammonia, or urea, which is extremely hazardous. Decomposes rapidly in contact with acids.

Product Usage


  1. Water Disinfection (Primary Application):
    · Swimming Pool Sanitization: Used as a fast-acting disinfectant for shock treatment and routine sanitation of swimming pools.
    · Drinking Water Disinfection: For rapid disinfection of potable water, well water, and aquaculture water bodies.
    · Industrial Circulating Water: For quick bacterial and algal control in industrial cooling water systems.
    · Wastewater Treatment: For emergency disinfection and treatment of hospital sewage and domestic wastewater.

  2. Industrial Bleaching:
    · Textile Industry: For bleaching textiles.
    · Paper Industry: For pulp bleaching.

  3. Sanitation & Epidemic Prevention:
    · Used for rapid disinfection of public areas, food processing equipment, tableware, livestock farms, and their environments.

  4. Other Applications:
    · A key ingredient in household bleaches and disinfectants.

Safety Matters


  1. Health Hazards:
    · Strong oxidizing and corrosive properties. Causes irritation and corrosion to eyes, skin, and respiratory tract, leading to burns.
    · Inhalation of dust or decomposition products (chlorine gas) can cause respiratory tract damage.
    · Ingestion causes severe corrosion of the digestive tract.

  2. Handling Protection:
    · Must be handled in a well-ventilated area. Strictly prevent dust formation.
    · Imperative to wear a respirator (for chlorine gas and dust), chemical splash goggles, chemical-resistant gloves, and protective clothing.
    · Do not eat, drink, or smoke in the work area.
    · Wash thoroughly after handling.

  3. Storage & Transportation:
    · Store in a cool, dry, well-ventilated warehouse away from heat and ignition sources. Pay special attention to moisture protection.
    · Keep containers tightly closed.
    · Must be stored and transported separately from combustibles, reducing agents, alcohols, nitrogen-containing compounds (e.g., ammonium salts, urea, ammonia), and acids. NEVER store or transport together.

  4. Fire Fighting:
    · Non-combustible itself, but a strong oxidizer. Will intensely intensify the combustion of surrounding combustible materials and may cause an explosion.
    · Use large quantities of water to extinguish fire.
    · Decomposes in fire or upon heating, releasing highly toxic and corrosive fumes including chlorine (Cl₂), phosgene (COCl₂), hydrogen chloride (HCl), and nitrogen oxides (NOx).
    · Firefighters must wear self-contained breathing apparatus and full protective gear.

FAQ

Q:What are your main products?
A:We specialize in five core areas: general chemicals and food additives, water treatment and disinfection chemicals, oilfield drilling additives, fertilizers and soil conditioners, and solvents and specialty chemicals. We provide one-stop chemical procurement and solutions across multiple industries. 

Q:How do you ensure the consistent quality and reliability of your products?
A:Quality is our cornerstone. We are ISO 9001 certified for quality management, ISO 14001 for environmental management, and ISO 45001 for occupational health and safety. We implement strict quality control throughout the entire process, from raw material procurement to factory delivery, to ensure that every batch of products meets specifications.

Q:Can you provide customized products or solutions based on our specific needs?
A:Of course. We have a dedicated R&D and technical team dedicated to solving our customers' specific challenges. Whether it's adjusting product formulas, developing specific specifications, or customizing solutions for your processes, we are happy to provide customized services. Please provide your specific requirements and our engineers will work with you.

Q:What kind of technical support and after-sales service do you provide if problems arise?
A:We provide comprehensive technical support and after-sales service. We have a dedicated team to assist with everything from product selection guidance and application support to rapid response to after-sales issues. We promise to provide timely and professional feedback on your inquiries to ensure smooth operations.

Q:What is the minimum order quantity (MOQ) and delivery time?
A:To meet the needs of diverse customers, we offer flexible MOQs. The specific MOQ and delivery time depend on the product type and order size. We will provide you with a detailed quote, MOQ, and estimated delivery time within 24 hours of receiving your detailed inquiry.

Q:Do your products comply with international environmental and safety standards?
A:Yes, compliance is a key aspect of our product design. Our product development and production processes strictly adhere to relevant international and regional regulations. We also actively offer product options that comply with standards such as REACH and RoHS, and provide you with detailed Safety Data Sheets (SDS) to ensure safe and compliant use.

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