SODIUM DICHLOROISOCYANURATE = NaDCC

Therapeutic action

• Disinfectant (chlorine-releasing compound)

Indications

• Disinfection of medical devices, instruments, linen, floors and surfaces

Forms and strengths

• 1.67 g NaDCC effervescent tablet, releasing 1 g active chlorine when dissolved in water.

Also comes in different strengths and in granules and powder.

Preparation and use

Pre-disinfection of soiled instruments

• 0.1% active chlorine solution (1000 ppm): 1 tablet of 1 g active chlorine per litre

Immediately after use, soak instruments for 15 minutes, then clean instruments.

Disinfection of clean instruments

• 0.1% active chlorine solution (1000 ppm): 1 tablet of 1 g active chlorine per litre

Soak previously cleaned instruments for 20 minutes, rinse thoroughly and dry.

Disinfection of linen

• 0.1% active chlorine solution (1000 ppm): 1 tablet of 1 g active chlorine per litre

Soak for 15 minutes, rinse thoroughly (at least 3 times).

General disinfection (surfaces, floors, sinks, equipment, etc.)

See Chlorine-releasing compounds and Antiseptics and disinfectants, Part two.

Precautions

• Prepare solutions with cold water, in non metallic containers.
• NaDCC can corrode metal. The risk is limited for good quality stainless steel instruments if concentration, contact time (20 minutes maximum) and thorough rinsing recommendations are respected.
• For disinfection of linen: use only for white cotton or linen (risk of discolouration).
• Do not expose the product to flames. Do not incinerate.
• DO NOT SWALLOW. Do not store NaDCC tablets near oral tablets.
• Avoid inhaling vapours and dust when opening or handling the containers.
• Do not mix with acid solutions such as urine, etc. (release of toxic chlorine gas) and detergents.

Remarks

• NaDCC may be used for wound antisepsis but only if the formulation is intended for this purpose: 0.1% active chlorine solution (1000 ppm): 1 tablet of 1 g active chlorine per litre. For prolonged use, protect the healthy skin around the wound with vaseline.

Caution: some formulations used for disinfecting floors contain additives (detergents, colouring, etc.) and cannot be used on wounds. Check label or leaflet.

• Some formulations can be used for the disinfection of drinking water (Aquatabs®, etc.). Follow manufacturer's instructions.
• NaDCC is also called sodium troclosene, sodium dichloro-s-triazinetrione.

Storage