For bleaching wool and jute

For solubilising tanning extracts

In wastewater treatment added following disinfection with a chlorine solution to neutralize the residual chlorine before discharging the treated effluent.

As an antichlor and in the detoxification of cyanide and chromate

Usually added to large piping systems to prevent oxidative corrosion.

Available from our sister company Rigest

In food as flavouring preservative in winemaking - later added to bottled wine to prevent the formation of vinegar if bacteria are present, and to protect the colour, aroma and flavour of the wine from oxidation

In fruit canning to prevent browning and to kill microbes.

Added to leafy green vegetables in salad bars and elsewhere, to preserve apparent freshness

As a preservative in fruits and starch

As an enzyme inhibitor in melanin formation (black and brown spots)

Preserve colour and inhibit bacterial growth on fruits and vegetables, some seafood and in wine.

It is frequently used as a bleaching agent in flour and grains, and as a dough conditioner to enhance the rise and preserve the freshness of bread.

For purifying and isolating aldehydes and ketones

Common reducing agent in the chemical industries

For bleaching ground wood

As an antichlor

For developer solutions and acidifying fixing baths

For bleaching wool and jute

For solubilising tanning extracts

In wastewater treatment added following disinfection with a chlorine solution to neutralize the residual chlorine before discharging the treated effluent.

As an antichlor and in the detoxification of cyanide and chromate

Usually added to large piping systems to prevent oxidative corrosion.

Available from our sister company Rigest

In food as flavouring preservative in winemaking - later added to bottled wine to prevent the formation of vinegar if bacteria are present, and to protect the colour, aroma and flavour of the wine from oxidation

In fruit canning to prevent browning and to kill microbes.

Added to leafy green vegetables in salad bars and elsewhere, to preserve apparent freshness

As a preservative in fruits and starch

As an enzyme inhibitor in melanin formation (black and brown spots)

Preserve colour and inhibit bacterial growth on fruits and vegetables, some seafood and in wine.

It is frequently used as a bleaching agent in flour and grains, and as a dough conditioner to enhance the rise and preserve the freshness of bread.

For purifying and isolating aldehydes and ketones

Common reducing agent in the chemical industries

For bleaching ground wood

As an antichlor

For developer solutions and acidifying fixing baths