• Product Name: Sodium Dichloroisocyanurate Dihydrate
  • Abbreviation: SDIC Dihydrate
  • Appearance: White Granular
  • Effective chlorine content, % ≥: 55
  • PH Value: 6.0-7.0
  • CAS No: 51580-86-0
  • MF: C3Cl2N3NaO3.2H2O

Product Description

Sodium Dichloroisocyanurate Dihydrate, also known as SDIC, is a chemical compound with the formula C3Cl2N3NaO3.2H2O. It is a white granular that is highly soluble in water. This compound is a derivative of isocyanuric acid and is widely used for its disinfectant properties.

SDIC dihydrate has the characteristics of high efficiency, broad spectrum, safety and stability. It can release hypochlorous acid in water and destroy the proteins on the surface of microorganisms through oxidation, thereby killing various microorganisms. As an important broad-spectrum bactericide and disinfectant, SDIC is widely used in industry, agriculture, epidemic prevention and other fields.

ItemSodium Dichloroisocyanurate Dihydrate
Effective chlorine content, % ≥55
PH,1% aqueous solution6.0-7.0
Unsolvable matter0.1
GranularSize: 8-30 mesh; 20-60 mesh (can also be customized).
Packaging25 kg/woven bag; 1000 kg/woven bag; 25 kg/plastic drum; 50 kg/plastic drum; 50 kg/fibre drum.

Applications of Sodium Dichloroisocyanurate Dihydrate

  • Industrial field. SDIC dihydrate can be widely used as a bactericide and disinfectant in circulating water systems, swimming pools, industrial water and other occasions to effectively control the growth and reproduction of microorganisms. In addition, it can also be used for sterilization and mildew prevention in papermaking, textile, paint, petroleum and other industries.
  • Agricultural field. Sodium dichloroisocyanurate dihydrate can be used as a seed disinfectant and soil fungicide to effectively prevent and treat various crop diseases. At the same time, it can also be used as a disinfectant and feed additive in animal husbandry to improve animal disease resistance.
  • In the field of epidemic prevention, this product can be used for the disinfection of air, surfaces and medical equipment, as well as the treatment of excreta and sewage.
SDIC Chemical Packing

High efficiency disinfectant

SDIC dihydrate can quickly and effectively eliminate a variety of harmful microorganisms to ensure the water quality safety.

Stable and Non-Hazardous

It is a stable and non-hazardous chemical when handled and stored properly. This makes it safe for use in diverse applications.


Compared with other alternative water treatment chemicals, sodium dichloroisocyanurate dihydrate is often a cost-effective choice, especially for large-scale applications in various water treatments, such as swimming pool disinfection, drinking water and industrial circulating water treatment.

Long Shelf Life

This compound has a relatively long shelf life, making it a reliable choice for emergency preparedness and long-term storage.

The use of SDIC Dihydrate depends on the specific application, but generally, it involves dissolving the compound in water to create a chlorine-based disinfecting solution. Proper dosing and application methods are essential to ensure effective disinfection while avoiding overuse.

Sodium Dichloroisocyanurate Dihydrate is a versatile and potent water treatment chemical with a wide range of applications. Whether you’re purifying drinking water, maintaining a swimming pool, or ensuring the safety of food products, this compound can be a good choice. Its effectiveness, ease of use, and cost-efficiency make it a preferred choice in industries where water disinfection is paramount.

There are two main methods for manufacturing sodium dichloroisocyanurate dihydrate: one is direct synthesis and the other is metathesis.

The direct synthesis method uses chlorine, cyanuric acid and sodium hydroxide as raw materials, reacts under certain temperature and pressure conditions, and then goes through steps such as crystallization, separation, and drying. The metathesis method uses sodium chloride and cyanuric acid as raw materials, carries out a metathesis reaction under certain conditions, and then goes through steps such as crystallization, separation, and drying.

  • A a professional manufacturer of sodium dichloroisocyanurate dihydrate, Fengbai has more than 15+ years of experience in water treatment industry.
  • The annual output of SDIC chemical is up to 18,000 tons.
  • A large warehouse to ensure sufficient supply of goods.
  • Fengbai products have passed many certifications, such as ISO 9001, SGS, HACCP, KOSHER, HALAL, etc.
  • Supply high quality products, competitive factory price, and excellent services.
  • Good cooperation with cargo agents and shipping companies.