Sodium Dichloroisocyanurate (SDIC) Supplier in Malaysia
- Also known as
- SDIC
- NaDCC
- Sodium Dichloro-S-Triazinetrione
- Sodium Troclosene
Sodium dichloroisocyanurate supplier for water-treatment, sanitation and formulation buyers in Malaysia. Traded as SDIC or NaDCC, it is a stabilised chlorine-release isocyanurate whose defining specification is available chlorine. It is not trichloroisocyanuric acid, calcium hypochlorite or sodium hypochlorite.
Commercial forms are powder, fine and coarse granular, and compressed tablets including effervescent grades. Anhydrous grades commonly carry about 56% available chlorine, some granular grades sit near 60%, and dihydrate grades are lower. Form is chosen for the dosing system rather than the chemistry.
Water and wastewater plants, cooling systems and pools use sodium dichloroisocyanurate as a solid chlorine donor that stores and handles more easily than bulk liquid bleach. It also supplies available chlorine to bleach and sanitiser formulations, food and beverage plant hygiene, farm and aquaculture disinfection and general industrial sanitation.
Send the required form, target available chlorine, tablet weight if relevant, quantity and delivery location with your enquiry. Availability, packing, documentation and delivery timing are confirmed with the quotation. Supply is subject to applicable requirements.
- CAS number
- 2893-78-9
- Grade
- industrial, technical
- Appearance
- white powder, granules or compressed tablets with a chlorine odour
SDIC grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| SDIC powder 56% | white powder | about 56% available chlorine | The standard anhydrous powder grade for water and wastewater dosing, plant sanitation make-up and bleach or cleaning formulation where fast dissolution matters. | Confirm the required pack format with the quotation. |
| SDIC fine granular | fine granules | about 56% available chlorine | Free-flowing granular grade for volumetric dosing, feeders and blending lines that handle powder poorly. | Confirm the required pack format with the quotation. |
| SDIC coarse granular 60% | coarse granules | about 60% available chlorine on common granular grades | Higher available-chlorine granular grade for pool and industrial water treatment where a slower-dissolving coarse particle suits the dosing method. | Confirm the required pack format with the quotation. |
| SDIC chlorine tablets | compressed tablets | — | Tablet form for feeder, floater and basket dosing in pool, cooling-water and sanitation systems. Tablet weight is confirmed against the enquiry. | Confirm the required pack format with the quotation. |
| SDIC effervescent tablets | compressed effervescent tablets | — | Rapid-dissolving tablet grade used for controlled-volume disinfection dosing and surface sanitising solution make-up. | Confirm the required pack format with the quotation. |
| SDIC dihydrate grade | white powder or granules | — | Lower available-chlorine dihydrate grade specified where a gentler chlorine-release profile or different handling behaviour is preferred. | Confirm the required pack format with the quotation. |
How to buy SDIC from ChemTrade
Request a quote for SDIC
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | white powder, granules or compressed tablets according to form | — |
| Chemical identity | sodium dichloroisocyanurate (SDIC, NaDCC) | — |
| CAS number (anhydrous) | 2893-78-9 | — |
| CAS number (dihydrate) | 51580-86-0 | — |
| Available chlorine | about 56% on common anhydrous grades and about 60% on some granular grades; dihydrate grades are lower and confirmed by specification | — |
| Solubility | readily soluble in water, releasing available chlorine | — |
| Grade controls | available chlorine, moisture, pH of solution, particle size or tablet mass confirmed against the required specification | — |
SDIC applications
Safety and handling
- Classification
- oxidising
Store sealed in a cool, dry, well-ventilated place away from acids, ammonium compounds, organic matter, reducing agents, other chlorine donors and combustibles. Keep dry, because moisture and heat accelerate decomposition and chlorine release. Handle as an oxidising, irritant solid with suitable personal protection and follow the safety data for the quoted grade. Supply is subject to applicable requirements.
Common questions about SDIC
What does SDIC stand for?
SDIC is the trade abbreviation for sodium dichloroisocyanurate, also written NaDCC. Buyers and specification sheets use SDIC, NaDCC and sodium troclosene for the same material, so any of those terms on an enquiry is understood.
Can SDIC replace TCCA in a chlorination system?
No. Trichloroisocyanuric acid is a different product with roughly 90% available chlorine, a slower dissolution profile and a strongly acidic solution. SDIC carries about 56% to 60% available chlorine, dissolves quickly and gives a near-neutral solution. Order TCCA by name if that is what your process needs.
How is SDIC different from calcium hypochlorite for water treatment?
Both are solid chlorine donors, but calcium hypochlorite is a hypochlorite salt that raises pH and can leave calcium residue, while SDIC is a stabilised isocyanurate that dissolves cleanly at close to neutral pH and stores well. Plant choice usually comes down to dosing equipment, residue tolerance and available chlorine per delivered tonne.
Which SDIC form should I request, powder, granular or tablet?
Powder dissolves fastest and suits solution make-up and dry blending. Granular grades feed and meter more predictably. Tablets suit feeders, floaters and basket dosing where a slower, hands-off release is wanted. Describe the dosing equipment so the offer matches the form.
What available chlorine is standard for sodium dichloroisocyanurate?
Common anhydrous commercial grades sit around 56% available chlorine, with some granular grades offered near 60%. Dihydrate grades are lower. State any target percentage or attach the specification you work to, and the quotation will be matched against it.
What details are needed for an SDIC price enquiry?
Provide form, target available chlorine, tablet weight if tablets are required, application, quantity and delivery location. Note any preferred packing or required product documents so the quotation can cover the whole requirement.