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CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079

Categories Industrial Gases
Brand Name: Newradar Gas
Model Number: N/A
Certification: ISO/DOT/GB
Place of Origin: China
MOQ: 2pcs
Price: negotiation
Payment Terms: L/C, , T/T, Western Union, MoneyGram
Supply Ability: 10000 pcs per month
Delivery Time: 25 working days after received your payment
Packaging Details: Packed in 40L-926L cylinder or packed according to the demands.
Product Name: Sulfur Dioxide
Purity: 99.9%
Density: 2.9275kg/Nm3
CAS No.: 7446-09-5
EINECS No.: 231-195-2
Acidity: 1.81
Basicity: 12.19
Color: Colorless
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    CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079

    CAS 7446-09-5 Biomedical Roles Liquid Sulfur Dioxide SO2 Colorless UN1079


    Description:


    Sulfur dioxide can be a byproduct in the manufacture of calcium silicate cement; CaSO4 is heated with cokeand sand. Treatment of basic solutions with sulfur dioxide affords sulfite salts.


    Featuring sulfur in the +4 oxidation state, sulfur dioxide is a reducing agent. It is oxidized by halogens to give the sulfuryl halides, such as sulfuryl chloride.


    Sulfur dioxide is the oxidising agent in the Claus process, which is conducted on a large scale in oil refineries. Here, sulfur dioxide is reduced by hydrogen sulfide to give elemental sulfur.

    Sulfur dioxide is one of the few common acidic yet reducing gases. It turns moist litmus pink, then white.


    Specifications:


    1. Physical properties


    Commodity

    Sulfur Dioxide

    Molecular FormulaSO2
    CAS No.

    94336-28-4

    UN No.

    UN1079

    Hazardous class for transort2.3

    2. Typical technical data (COA)


    SpecificationUnitCertified ConcentrationNewradar SO2
    SO2%≥99.90≥99.92
    Residue%≤0.040≤0.036
    Moisture(H2O)%≤0.060≤0.044
    AppearanceSlightly YellowColorless

    3. Package


    Cylinder SizeFilling Weight (kg)

    Valve Type


    100ltr98QF-10
    400ltr390QF-10
    800ltr784QF-10
    926ltr900QF-10

    Applications:


    Precursor to sulfuric acidSulfur dioxide is an intermediate in the production of sulfuric acid, being converted to sulfur trioxide, and then to oleum, which is made into sulfuric acid. Sulfur dioxide for this purpose is made when sulfur combines with oxygen. The method of converting sulfur dioxide to sulfuric acid is called the contact process. Several billion kilograms are produced annually for this purpose
    As a preservativeSulfur dioxide is sometimes used as a preservative for dried apricots, dried figs, and other dried fruits, owing to its antimicrobial properties, and is called when used in this way in Europe. As a preservative, it maintains the colorful appearance of the fruit and prevents rotting. It is also added to sulfured molasses
    In winemakingSulfur dioxide was used by the Romans in winemaking, when they discovered that burning sulfur candles inside empty wine vessels keeps them fresh and free from vinegar smell
    As a reducing agentSulfur dioxide is also a good reductant. In the presence
    of water, sulfur dioxide is able to decolorize substances. Specifically, it is a
    useful reducing bleach for papers and delicate materials such as clothes
    Biochemical and biomedical rolesSulfur dioxide is toxic in large amounts. It or its conjugate base bisulfite is produced biologically as an intermediate in both sulfate-reducing organisms and in sulfur-oxidizing bacteria, as well. The role of sulfur dioxide in mammalian biology is not yet well understood
    As a refrigerantBeing easily condensed and possessing a high heat of
    evaporation, sulfur dioxide is a candidate material for refrigerants. Prior to the
    development of chlorofluorocarbons, sulfur dioxide was used as a
    refrigerant in home refrigerators
    As a reagent and solvent in the laboratorySulfur dioxide is a versatile inert solvent widely used for dissolving highly oxidizing salts. It is also used occasionally as a source of the sulfonyl group in organic synthesis
    Proposed use in climate engineeringInjections of sulfur dioxide in the
    stratosphere has been proposed in climate engineering
    As an air pollutantSulfur dioxide is a noticeable component in the atmosphere, especially following volcanic eruptions.

    Product Tags:

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