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Manganese Dioxide

Irwins supply premium grade Manganese Dioxide (Min 75%), which is used in water filtration to remove hydrogen sulphide, iron and manganese from potable waters by catalytic oxidation.

A mixture of manganese dioxide and sand in a filter bed will normally reduce the concentration of manganese and iron in water from 0.5mg/l and 3mg/l to 0.02mg/l and 0.05mg/l respectively (given the correct conditions of alkalinity and pH). In Ireland certain regions are more prone to high levels of Manganese in the water.

Irwins have supplied Manganese Dioxide to treatment plants in Galway, Cork, Wexford, Louth, Cavan and Monaghan and it has proved very effective.

Technical Information

  • Manganese Dioxide 0.8 – 1.5
  • Manganese Dioxide 18.44



  • Sizes 0.35-0.85mm
  • Sizes 0.8-1.5mm

Quality Products & Quality Service

Irwins Quality Aggregates offer one of the most extensive ranges of decorative aggregates in Ireland. Irwins can offer a large range of dry dash render stones available with accompanying sands.

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Shipping & Returns Policy

Irwins do not deliver bagged products to private houses. We rely on our network of Builders Merchants throughout Ireland. We can deliver bulk loads for contracts and merchants. Loose bulk loads can be delivered direct if required.

Irwins Quality Aggregates without prejudice, operate a NO RETURNS POLICY for all bagged & Bulk Deliveries. Note: Agreed exceptional returns will incur a 25% Handling Charge

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Working to Standards

ISO 9001 and ISO 14001 Registered Company.

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