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Sodium chlorite

A solid oxidiser used to bleach textiles and treat water, and the second substance in this register that can ignite ordinary household material.

What not to do

Sodium chlorite is unsafe on Natural rubber

Unsafe

Do not do this. The risk is established, and it is described below.

Precautions

  • Wear gloves
  • Wear eye protection

Why we say this

Strongly supported

Named material, named substance, regulator source.

Sources

  1. Right to Know Hazardous Substance Fact Sheet: Sodium Chlorite (RTK 1689)

    New Jersey Department of Health · Government or regulator

    Relied on for: That sodium chlorite is not compatible with natural rubber, and with aldehydes, ketones and iron. (states this directly)

    Verification: a person has read the passage relied on.

    Read on The 'IDENTIFICATION' block and the 'HANDLING AND STORAGE' reactivity list. Supports the claim as stated. Adds a second solid oxidiser to the catalogue with the same combustibles behaviour as calcium hypochlorite, which turns a single sheet's warning into a pattern the reader can carry.

Last reviewed by a person on .

Precautions

  • Never mix with other cleaning products
  • Wear gloves
  • Wear eye protection
  • Keep away from children and pets
  • Dispose of responsibly

In detail

Sodium chlorite is a white crystalline powder or flake, described by the regulator as used for improving the taste and odour of potable water and as a bleaching agent for textiles, paper pulp, varnishes, waxes and straw products. It appears in this catalogue for two reasons and neither is a domestic recommendation. The first is that it is the precursor from which chlorine dioxide is generated, and consumer products sold for odour and mould treatment frequently involve one or the other while describing themselves in the vocabulary of ordinary bleach. The second is a behaviour it shares with calcium hypochlorite, and two independent sheets describing the same thing is what makes it a rule rather than an anecdote: mixed with organic materials it becomes a fire hazard, and storage is specified cool, dry and well ventilated away from flame and combustible materials. A solid oxidiser meeting paper, wood, oil or garden waste is a different proposition from a dilute solution meeting the same things. It is also incompatible with strong acids, with natural rubber, and with aldehydes, ketones and iron.

Properties

Chemical name
Sodium chlorite
pH
Alkaline

Why

Sources for this page

Sources

  1. Right to Know Hazardous Substance Fact Sheet: Sodium Chlorite (RTK 1689)

    New Jersey Department of Health · Government or regulator

    Relied on for: That sodium chlorite is used for improving the taste and odour of potable water and as a bleaching agent for textiles, paper pulp, varnishes and waxes, that mixed with organic materials it is a fire hazard, and that it is incompatible with strong acids, natural rubber, aldehydes, ketones and iron. (states this directly)

    Verification: a person has read the passage relied on.

    Read on The 'IDENTIFICATION' block and the 'HANDLING AND STORAGE' reactivity list. Supports the claim as stated. Adds a second solid oxidiser to the catalogue with the same combustibles behaviour as calcium hypochlorite, which turns a single sheet's warning into a pattern the reader can carry.

Last reviewed by a person on .

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