Appearance White tablet
Molecular weight 220.96
Chemical name Sodium Dichloroisocyanurate
Chemical formula C3HCI2N3O3.Na
Solubility Completely soluble in water
Dissolution Clear solution with faint chlorine odor
Tablet strengths 0.5g, 1.25g and 2.5g


What is NaDCC ?
NaDCC, also known as Sodium Dichloroisocyanurate or Troclosene Sodium, is one form of chlorine used for disinfection. It is often used to treat water in emergencies, and is now widely available for household water treatment. When added to water, NaDCC releases hydrochloric acid which reacts through oxidization with microorganisms and kills them.

Three things can happen when chlorine is added to water:

  1. Some chlorine reacts through oxidization with organic matter and the pathogens in the water and kills them. This portion is called consumed chlorine.
  2. Some chlorine reacts with other organic matter and forms new chlorine compounds. This portion is called  combined chlorine.
  3. Excess chlorine that is not consumed or combined remains in the water. This portion is called free residual chlorine (FRC). The FRC helps prevent recontamination of the treated water.

Actinobacillus sp.
Actinomyces pyogenes
Bacillus anthracis
Brucella abortus
Clostridium butyricum
Clostridium sp.
Corynebacterium sp. Enterobacter cloacae
Enterobacter sp.
Eschericia coli
Escheria coli 0157-H
Erysipelothrix sp
Klebsiella sp.
Legionella pneumophilia Leptospira sp.
Listeria monocytogenes
Mycobacterium paratuberculosis
Mycobacterium smegmatis
Mycobacterium sp.
Mycobacterium terrae 232 Mycobacterium
Tuberculosis ATCC25618
Mycoplasma mycoides
Mycoplasma sp.
Norcardia sp.
Pasteurella sp.
Proteus vulgaris
Pseudomonas aeruginosa NCTC6749
Pseudomonas aeureus
Pseudomonas fluorescens IM
Rhodococcus equi.
Salmonella dysenteriae
Salmonella typhimurium
Salmonella typhimurium phage type 104
Salmonella typhosa
Shigella sonnei
Staphylococcus agalactiae
Staphylococcus aureus
Methicillin Resistant Staphylococcus aureus
Staphylococcus uberis
Streptococcus equi.
Vibrio sp.

Aspergillus fumigatus
Aspergillus niger
Candida albicans
Cryptococcus sp
Fusarium sp
Microsporum sp
Mucor sp Penicillium sp
Saccharomyces sp
Trichophyton sp

Bacillus anthracis spores
Bacillus cereus spores
Bacillus globigii spores
Bacillus subtilis spores
Clostridium bifermentans spores
Clostridium butyricum spores
Clostridium histolyticum spores
Clostridium histolyticum spores 503 Clostridium
Sporogenes spores
Clostridium tetani spores
Tubercule bacilli spores

Adeno virus 3,7,7a,8 & 12
Aujesky’s virus
Bovine Viral Diarrhoea virus (BVD)
Corona virus
Coxsackie A2 (Purified)
Creutzfeldt-Jakob Disease virus
Distemper virus
Equine Herpes virus (1 & 4)
Equine Influenza virus
Foot & Mouth Disease virus
Hardpad virus
Hepatitis A virus
Hepatitis B virus
Infectious hepatitis virus
Herpes Simplex virus 1
Human Rotavirus
Human Immunodeficiency virus (HIV)
HIV + 10% plasma HIV in contaminated blood
Newcastle Disease virus
Poliovirus 1, 2 & 3
Reovirus 1,2 & 3
Respiratory Syncytial virus (RSV)
Simian Rotavirus SA11 (Purified)
Theiler’s virus (Purified)

Mode of action of NaDCC

HOCI causes chlorination of cell protein and enzyme systems, which leads to hydrolysis of the peptide chains of the micro-organisms cell membranes and results in destruciton of the micro-organisms.

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