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Sodium Dichloroisocyanurate (SDIC) - Fast-Dissolving Chlorine from Trusted China Suppliers and Factory for Water Treatment
Product Description
| Parameter | Specification/Value |
| Chemical Name | Sodium Dichloroisocyanurate |
| CAS No. | 2893-78-9(Anhydrous);51580-86-0(Dihydrate) |
| Molecular Formula | C₃Cl₂N₃NaO₃ (Anhydrous) |
| Molecular Weight | 219.95(Anhydrous) |
| Available Chlorine(Min) | 60%(Anhydrous),56%(Dihydrate) |
| Content(Assay) | ≥98.5% |
| Moisture Content | ≤1.0% |
| pH(1%Solution) | 5.5-7.0(Nearly Neutral) |
| Solubility(in Water,25℃) | ~25 g/100ml(Highly Soluble) |
| Appearance | White crystalline solid(powder,granules,or tablets) |
| Odor | Characteristic chlorine odor |
Specification:
| Specification | Standard Value |
| Available Chlorine | ≥ 60% (Can be 56% min for some industrial grades) |
| Appearance | White crystalline powder or granules. |
| Moisture Content | ≤ 1.0% |
| Particle Size (Granules) | 8-30 mesh (common) |
| Particle Size (Powder) | 20-100 mesh (customizable) |
Application
1.Swimming Pools & Spas: Perfect for quick shock treatment to kill algae and bacteria, and for routine maintenance.
2.Drinking Water Purification: Used for emergency disinfection of drinking water and in municipal water treatment systems.
3.Industrial Circulating Water Systems: Effectively controls algae and slime, preventing biofilm formation.
4.Livestock & Aquaculture: Used for disinfecting animal housing, hatcheries, and fish ponds.
6.Food & Beverage Industry: Sanitizes processing equipment, surfaces, and containers.
7.Healthcare & Household: Used for general disinfection and sanitization in public places and homes.
Regular packing
We offer flexible packaging solutions to meet diverse logistical and market needs.
- 1.Powder/Granules: 25 kg or 50 kg plastic woven bags, with a sealed inner plastic liner to prevent moisture.
- 2.Tablets: 25 kg / 50 kg plastic drums or plastic woven bags. Common tablet sizes are 5g, 10g, and 20g.
Customer-specified packaging
- 1.Custom tablet sizes and shapes (e.g., effervescent tablets for faster dissolution).
- 2.Private label packaging with your company's branding and design.
- 3.Small, retail-sized packages (e.g., 500g, 1kg sachets or bottles).
- 4.Customized powder granulation upon request.
How to use
1. For Pool Shock Treatment:
Pre-dissolve the required amount of SDIC powder or granules in a bucket of water.
Pour the solution evenly around the perimeter of the pool during the evening for best results.
Do not swim until chlorine levels return to safe levels (1-3 ppm).
Pour the solution evenly around the perimeter of the pool during the evening for best results.
Do not swim until chlorine levels return to safe levels (1-3 ppm).
2. For General Disinfection:
Prepare a solution by dissolving SDIC in water to achieve the desired available chlorine concentration (e.g., 100-500 ppm for surface disinfection).
Apply by spraying, mopping, or soaking. Allow surfaces to air dry.
Apply by spraying, mopping, or soaking. Allow surfaces to air dry.
3. For Drinking Water:
Use a very small, precisely measured amount. Follow recommended dosages (typically a few milligrams per liter).
Stir and allow it to stand for at least 30 minutes before use.
Stir and allow it to stand for at least 30 minutes before use.
Advantages
- 1.High Solubility: Dissolves quickly and completely in water, leaving little to no residue, unlike Calcium Hypochlorite.
- 2.Stability: Remains stable during storage with minimal chlorine loss when kept dry.
- 3.Convenient & Safe to Handle: Solid form is easier and safer to transport and store than liquid chlorine.
- 4.Nearly Neutral pH: Its solution is less alkaline than other chlorine compounds, reducing the need for pH adjustment in pools and minimizing corrosion on surfaces.
- 5.Dual-Action: Provides both instant and sustained chlorination effect.
- 6.Cost-Effective: High efficiency and rapid action lead to lower dosage and labor costs.
Storage Method
- 1.Store in a cool, dry, and well-ventilated warehouse.
- 2.Protect from moisture, direct sunlight, and heat.
- 3.Keep the container tightly closed after use to prevent caking.
- 4.Isolate from flammables, combustibles, organic materials, and acids. Fires involving SDIC can produce toxic fumes.
FAQ
Q1: What is the main difference between SDIC and TCCA (Trichloroisocyanuric Acid)?
A1: The key differences are:
• Solubility: SDIC is highly soluble, while TCCA dissolves slowly.
• pH: SDIC solution is nearly neutral, while TCCA is acidic.
• Application: SDIC is ideal for shock treatment and quick disinfection. TCCA is best for slow, continuous chlorination (e.g., in pool skimmers).
• Chlorine Content: TCCA has a higher available chlorine (≥90%) than SDIC (≥60%).
Q2: Is SDIC safe for drinking water?
A2: Yes, when used in correct, small doses, SDIC is approved for disinfecting drinking water in many countries. It effectively kills waterborne pathogens. Always follow local regulations and dosage guidelines.
Q3: Why should I choose SDIC over liquid bleach (Sodium Hypochlorite)?
A3: SDIC, in solid form, has a much longer shelf life, is easier and safer to transport, and does not lose strength quickly. It also has a higher chlorine content by weight.
Q4: Does SDIC leave any residue?
A4: SDIC dissolves completely, leaving virtually no insoluble residue, which makes it superior for applications where residue could clog sprayers or leave deposits on surfaces.
Q5: Can I mix SDIC with other chemicals?
A5: No, never mix SDIC with other chemicals, especially acids or ammonia-based cleaners. Mixing can cause dangerous reactions, release toxic chlorine gas, or lead to fire.