Sulfur Dioxide
      Potassium Metabisulphite
      Sodium Metabisulphite
      Sodium Bisulphite
      Ammonium Bisulphite

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    .SULFUR DIOXIDE (SO2)

Key Applications:
Winemaking: Preservative agent and anti-fermentative.
Paper and Cellulose Industry: Agent in cellulose bleaching process and in anti-chlorate for wastewater.
Food Industry:Manufacture of juices, soft drinks, and colorant. Facilitator of grain maceration to obtain starch.
Sugar-alcohol Industry: Clarifier and color reducer.
Chemical Industry: reducing agent in the fixing of perfumes, thinner in the recovery of nickel and cobalt; manufacture of trivalent salt, kaolin bleaching, metal treatment and cleaning, and gold flocculation.
Flat Glass and Light Bulb Industry: Lubrification.
Effluent Treatment: Anti-chlorine agent, reduction of hexavalent metal into trivalent.

 Specifications
Puritity: 99,9 % (minimum)
Humidity: 500 ppm (maximum)
Non-volatile content: 500 ppm (maximum)

Characteristics and Packaging: This product is supplied liquefied in low-pressure cylinders, and packed in various capacities, depending on consumption. The most common cylinder sizes for transport are:

 • cylinders from 70 to 150 kg (net weight);
 • cylinders from 750 to 900 kg (
net weight)
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    . POTASSIUM METABISULPHITE (K2S2O5)

Key Applications:
Winemaking: Prevent the growth of undesirable micro-organisms in the grapes or the wine; it also acts as a strong antioxidant.
Food/Beverage Industry: Beer manufacturing (inhibiting the growth of yeast, bacteria, and fungi), and dried fruits.

Specifications
SO2 content: 54,5 a 55,5 %
Iron content: 10 ppm (maximum)

Characteristics and Packaging: White crystalline powder, packed in 25-kg double polyethylene and polypropylene bags which are resistant to handling and transportation.

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    . SODIUM METABISULPHITE (Na2S2O5)

Key Applications:
Paper and Cellulose Industry: Cellulose bleaching process agent and anti-chlorate agent for wastewater.
Food Industry: Manufacture of juices, soft drinks, and colorants. Facilitator of corn maceration to obtain starch.
Chemical Industry: Chromium salt solution reducer agent in the tanning industry as well as in the photographic material and organic products industries.
Effluent Treatment: Anti-chlorine agent, reduction of hexavalent metal into trivalent.

 Specifications
SO2 content: 64,5 a 65,5 %
Iron content: 10 ppm (maximum)

Characteristics and Packaging: White crystalline powder, packed in 25-kg double polyethylene and polypropylene bags which are resistant to handling and transportation.

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    . SODIUM BISULPHITE (NaHSO3)

Key Applications:
Paper and Cellulose Industry: Cellulose bleaching process agent and anti-chlorate agent for wastewater.
Food Industry: Manufacture of juices, soft drinks, and colorants. Facilitator of corn maceration to obtain starch.
Chemical Industry: Chromium salt solution reducer agent in the tanning industry as well as in photographic material, organic products, and pharmaceutical products industries.
Effluent Treatment: Anti-chlorine agent, reduction of hexavalent metal into trivalent.

Specifications
SO2 content: 20 a 24 %
Iron content: 15 ppm (maximum)
pH: 4,0 a 4,7

Characteristics and Packaging: Slightly yellowish solution, marketed as granulate (tanks) or in 50-liter containers.

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    . AMMONIUM BISULPHITE (NH4HSO3) 

Key Applications:
Winemaking: Preservative and anti-fermentative agent.
Oil Industry: Well-drilling (sequestrant agent).
Food Industry: Manufacture of juices, soft drinks, and caramel coloring. It is also used as a preservative agent (antioxidant), and in equipment sterilization.

 Specifications
SO2 content: 44 a 45 %
Iron content: 15 ppm (maximum)
pH: 4,8 a 5,2

Characteristics and Packaging: Slightly yellowish solution, marketed as granulate (tanks) or in 50-liter containers.

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