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Name of the Product: sulfurous anhydride.
Quimico name: Sulfur Dioxide.
Quimica formula: SO2.
Appearance: transparent or slightly yellow liquefied gas.
Packing: 25, 50 and 100 kg returnable iron tubes, in bulk, or in 0.40 to 20 Tn iron tanks (in commodatum)
Measuring equipments: 50 gr (1gr scale), 3, 5, 25 and 50 kg.

Uses:

Chemically: Sulfurous Acid, sulfites and bisulfites, intermediate dyes, sulfonation, additive organic compounds of SO2..
Refineries: It is used as a selective solvent.
Paints and varnishes: It is used for the polymerization of dry or crude oils.
Food industry: It is used for the preservation of pulps and vegetable or fruit juices and also in wines, sulfited musts and the malt industry.
Cork industry: It is used as a germicide.
Fishing industry: It is used as a preservative and germicide.
Glass industry: glasses, lamp lightbulbs, bottles and medicine bottles; it reduces breakages and eliminates sodium.
Rubbers and gelatins: It is used in solubilizing processes and also as an acidulating and preservative agent.
Tanning industry: It is used as a bichromate and lime reducing agent, and also as a bleacher in vegetable tannings.
Metallurgical insdustry: It is used in precious metal refining, flotation metal treatment, metallic oxide chlorination and magnesium smelting.
Pulps and papers: It is used in the stabilization of pulps’ chemical dying and in other applications.
Sugar mills: It is used in sugar cane juice treatment and as a bleacher.
Other uses: in liquor fading treatments, chlorine removal, water treatments, bed and filter cleaning, cosmetics, photographic and plastic composites, pH Mathienson control process, as a neutralizer, hexavalent chrome reducer, as a bleaching agent for paper, textiles, oils, etc. and many other applications.

Specifications
Purity	99,98% min	99,9% Average Análisis
Water content	100ppm max.	50ppm Average Análisis
Acid content	10ppm max.	3ppm Average Análisis
Non-volatile content	50ppm max.	25ppm Average Análisis