How Sodium Dichloroisocyanurate (SDIC) Is Used in Water Treatment: Practical Application Guide

Sodium Dichloroisocyanurate (SDIC) (二氯异氰尿酸钠) is one of the most widely specified disinfection, sterilization & bleaching used across municipal and industrial facilities. As a SDIC / NaDCC, it delivers reliable performance in the scenarios our customers ask about most: Disinfectant in drinking water, swimming pool treatment, public places; also used in agriculture.

What Sodium Dichloroisocyanurate (SDIC) Is and How It Works

Sodium Dichloroisocyanurate (SDIC) is supplied as White powder, granules and tablet. Its molecular formula is C3O3N3Cl2Na (CAS 2893-78-9). Because of this physical form it dissolves and disperses predictably, which makes dosing and process control straightforward for plant operators.

Primary Applications

Its key application areas include: Disinfectant in drinking water, swimming pool treatment, public places; also used in agriculture. In practice this means SDIC / NaDCC is selected for both routine maintenance and shock-treatment programs, depending on the water matrix and treatment goal.

• Process reliability: stable active content and consistent granule/tablet size improve dosing accuracy.
• Compatibility: works within existing dosing and storage setups common to disinfection, sterilization & bleaching programs.
• Logistics: available in 10/15/25/50kg drum, simplifying import and warehouse planning.

Why Buyers Choose This Grade

When specifying Sodium Dichloroisocyanurate (SDIC), buyers typically compare active content, packaging and the applicable standard (HG/T 3779-2005). Selecting the right grade reduces consumption and protects downstream equipment.

Operators who also run complementary programs often pair this product with Copper Sulfate Pentahydrate to cover the full treatment chain from clarification to disinfection.

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We supply Sodium Dichloroisocyanurate (SDIC) in full container and mixed-pallet quantities with COA and MSDS for every lot. View the Sodium Dichloroisocyanurate (SDIC) product page for specifications, packaging options and lead times.