Sodium Thiosulphate Pentahydrate 99%

Sodium Thiosulphate Pentahydrate 99%

Close up look of industrial grade cyanuric acid for water treatment

Cyanuric Acid

Sodium Dichloroisocyanurate Dihydrate (SDIC Dihydrate 55%)

Other Trading Names:

  • NaDCC
  • Dichloroisocyanuric acid sodium salt dihydrate
  • Troclosene sodium
  • Sodium Troclosene
  • Sodium Dichloro-s-triazinetrione Dihydrate

CAS Number: 51580-86-0

HS Code: 3808.94

Types of Packaging:

  • 25kg/drum
  • 1-10kg/carton
  • 2PE Bag+Foil Bag
Inquiry right-arrow $100.00
Availability: In stock
Sodium Dichloroisocyanurate Dihydrate (SDIC Dihydrate 55%)

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White Granules

White Granules


20-40 mesh


Assay Chlorine

55% min


pH (1% solution)






Chemical Description 

Chemical Identity:

  • Chemical Name: Sodium Dichloroisocyanurate Dihydrate
  • Abbreviation: SDIC Dihydrate
  • CAS Number: 51580-86-0
  • Chemical Formula: C_3Cl_2N_3NaO_3·2H_2O

Physical Properties:

  • Physical State: Available in granular, powder, or tablet form.
  • Color: White or off-white.
  • Odor: Slight chlorine-like odor.
  • Melting Point: Decomposes before melting.
  • Solubility: Soluble in water, forming a clear solution.
  • Stability: Stable under normal temperatures and pressures.

Chemical Properties:

  • Active Chlorine Content: Typically around 55% for SDIC Dihydrate.
  • pH: The solution is slightly acidic to neutral.
  • Oxidizing Properties: Strong oxidizer, especially when in solution.
  • Decomposition: Releases nitrogen trichloride and chlorine gas upon decomposition.

Safety Information:

  • Hazard Classification: Classified as an oxidizing agent and irritant.
  • Handling Precautions: Requires handling with protective equipment like gloves, goggles, and suitable clothing.
  • First Aid Measures: In case of contact with skin or eyes, immediate rinsing with plenty of water is necessary. Seek medical attention if necessary.
  • Storage Recommendations: Should be stored in a cool, dry, and well-ventilated area, away from incompatible substances like acids and organic materials.

Environmental Impact:

  • Biodegradability: Not readily biodegradable.
  • Ecotoxicity: Can be harmful to aquatic life; precautions required to prevent environmental release.
  • Disposal Considerations: Disposal should comply with local environmental regulations.

Applications and Uses:

  • Water Treatment: Disinfection of drinking water, swimming pools, and sewage.
  • Agriculture: Used in aquaculture and for disinfecting irrigation water.
  • Food Industry: Sanitation in food processing and beverage plants.
  • Healthcare Sector: Surface disinfection in hospitals and clinics.
  • Household Cleaning: Ingredients in household disinfectants and sanitizers.
  • Emergency Water Treatment: Utilized in water purification tablets for emergency use.

Packaging Options:

  • Plastic Drums: For large bulk quantities, especially for industrial use.
  • Fiber Drums: Alternative for bulk transport, offering robust protection.
  • Carton Boxes with Inner Linings: Used for smaller quantities, ensuring moisture protection.
  • Bags: Polyethylene or polypropylene bags for smaller industrial or commercial quantities.
  • Custom Packaging: Depending on customer requirements and transportation regulations.
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Sodium Dichloroisocyanurate Dihydrate (SDIC Dihydrate 55%)