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Sodium Dichloroisocyanurate (SDIC) - Fast-Dissolving Chlorine from China Suppliers and Factory for Water Disinfection
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
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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).
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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.
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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.
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.